Sunday, May 5, 2024

HI-TECH laser cutting for electric motors development: Aussafer Due

Aussafer Due is partner of excellence for the development and manufacturing of laser cut
laminations and of stator/rotor core stacks, by means of 10 fiber laser machines (the biggest subcontracting division in Italy), providing a highly customized service upon customers’ precise needs, besides offering a range of additional services.

Technology, innovation, precision and a highly specialized technical team represent the highlights that have always characterized Aussafer Due. A strategic asset that has allowed the company to become a national and international reference reality in the metalworking sector, with specific focus on the electric motor enabled by a business unit fully dedicated to the realization of prototypes, preseries, and special rotor and stator cores, through laser cutting of electrical steel laminations. The cores are realized by standard welding processes, or BACKLACK bonding.
The advantages of BACKLACK technology is better precision, stiffness and vibration performance, and the possibility of very complex shapes. Aussafer Due can deliver to its customer both loose laminations and rotor/stator cores.
A customized service that permits to collaborate with customers in the product development phase, directly dialoguing with technical and R&D offices, Universities, Research and Development Centres, for the implementation of the realistic prototype.
Aussafer Due also supports its customers in repairing and refurbishment of big rotating electrical machines, like alternators, hydro and wind generators.
For these activities, its customers can rely on Aussafer Reverse Engineering Service, that enables the acquirement of the drawing from a physical part.

Laser Technology advantages compared to traditional methods

‱ no stamping tool required
‱ cost effectiveness and short lead times for geometry
and product changes
‱ short time to market for realizing a functional
prototype

Aussafer Due added value and competitive edge

Strongly oriented to innovation, Aussafer Due avails itself of state-of-the-art process technologies, in compliance with Industry 4.0, with 10 fiber laser cutting machines (i.e. the biggest subcontracting laser cutting department in Italy), customized on its own specifications. As outstanding is the broad range of warehoused materials available in stock: silicon steels in thicknesses from 0.1 to 1 mm, with magnetic properties and grades from M230 to M800, also NO (NO10, NO20 etc.), on different insulations (C3, C5, C6), BACKLACK, cold rolled and hot rolled pole sheets (TF and TG), too.

Outstanding level quality for the most demanding sectors

ISO 9001:2015-certified and with its own quality system, Aussafer Due guarantees final quality and accuracy with in-process tests and checks carried out by its entrusted in-house laboratory, equipped with 3 innovative coordinate measuring machines (CMM).
The in-depth experience and the competences gained allow the company to manufacture several motor typologies: asynchronous motors (IM), internal permanent magnet synchronous motors (IPMSM) also with rotor cage, surface mounted permanent
magnet synchronous motors (SM-PMSM), synchronous reluctance motors (SynRM), linear motors, alternators and generators, also segmented. Executions manufactured for numerous customers spread worldwide, operating in various sectors, for applications in automotive and racing ambit (hydro and wind generators), traction motors, CNC machine
tools, CNC spindles, renewable energies, automation, naval and aerospace industry, oil & gas.

Euro Group, magnetic steel laminations worldwide

Stampa

Euro Group is the industrial holding company of an italian metalworking group with 51 years of history. It has grown to become a world top player in the production of magnetic steel laminations for stators and rotors of electric motors and generators.

Euro Groups market presence is worldwide, with 7 production units in Italy and another 5 in Mexico, United States, Tunisia, Russia and China.

The market for electric motors is increasingly demanding in terms of product complexity, shorter project development to market time, price competitiveness and high service level.

Euro Group meets these demands as a global partner who can offer solutions from dedicated production facilities to provide the best fit for all our customer requirements. To achieve these targets it has become master craftsman of its historical technologies (tool design and manufacture, blanking, die-casting, core assembly and slinky).

The company also cooperates as partners in the development of new families of magnetic steels.

Euro Group identifies and develops cutting-edge new technologies (for example laser welding, self-bonding steels, in-die gluing) and approaches new business opportunities with a structured Project Management, who have access to fast prototyping and numerical tools to simulate processes and designs to mitigate risks in serial production.

Once upon a time


The success story of GROB-WERKE began back in 1926 when the company was founded by Ernst Grob, who was producing folding boats, weaving machines and stationary combustion engines at that time.

In 1952, Burkhart Grob, the son of the founder, assumed responsibility for the company almost completely destroyed during the war and was able to forge the link to the emerging automotive industry with high-quality and technologically-convincing production machines. In 1968, the Mindelheim plant was built and the company’s headquarters was relocated from Munich to Mindelheim. Besides the parent plant in Mindelheim, the plants in Bluffton (USA), São Paulo (Brazil), Dalian (People’s Republic of China) and Turin (Italy) are part of the production network of GROB Group. This production network is expanded through fifteen sales and service branches in South Korea, China, India, Russia, Great Britain, Hungary, Mexico, Poland, Switzerland, the Netherlands, Vietnam, France, Japan and the USA to guarantee the best service quality.

Even after Dr. Burkhart Grob passed away in May 2016, the future of the family company has been strictly set out. Christian Grob took the company into the third generation as the new Supervisory Board Chairman. With a product portfolio ranging from universal machining centers to highly complex manufacturing systems including automation, and from machining assembly units to fully-automated assembly lines, GROB is one of the few machine tool manufacturers that produces and supplies machining and assembly equipment, as well as electromobility concepts since 2016.

The transfer of the GROB Italy plant from Buttigliera Alta to Pianezza is part of a long-term development plan which intends to make Pianezza a place of reference regarding the design and manufacturing of special machines and automation solutions for the production of electric motors.

Since the production of electric motors demands special assembly know-how, it was logical for GROB to seek a competent partner from the field of electric motor technology. Its takeover of DMG meccanica enables GROB to emphasize more than ever its claim in drive technology to be a leading and reliable partner for the automotive industry.

Development of DMG meccanica

Mauro Marzolla and the father of Marco Debilio founded DMG meccanica in 1992. They both brought with them decades of experience in winding technology for electric motors acquired at PAVESI, which, at that time, was one of the leading Italian providers of winding machines for electric motors. In 2001, after PAVESI had closed the activity definitively, DMG meccanica enjoyed an extremely successful period during which a range of new technologies and invention were brought to the market. These included both solutions and machines for manufacturing stators for electric motors, alternators and generators, and solutions for highly efficient winding machines. Directly responsible for these technological milestones were the engineers of DMG meccanica, who are among the best in their industry. Following this development, further products were developed over the years, such as various machines for spool manufacturing, spool feeding and winding head forming and slot insulation machines. In 2016, DMG meccanica, with a workforce of forty employees, achieved a turnover of ten million Euro. Five percent was in the home market of Italy, 40 percent in the EU and 55 percent in non-EU countries. 60% of the customer portfolio is comprised of well-known electric motor manufacturers and suppliers to the automotive industry. In addition, DMG meccanica was particularly well-represented in the important e-mobility market of China.

The acquisition: benefits for both companies

At the end of January 2017, GROB acquired 100 percent shares in DMG meccanica, substantially reinforcing the competences and developments in electromobility which it has been developing for several years. The technologies of DMG meccanica and the new processes developed by GROB, enable GROB to provide all the vital manufacturing processes and procedures in electric drives for the automotive industry and its suppliers world-wide, and also to supply them for series production in the near future. Following the acquisition, DMG meccanica became part of the GROB Group without any changes being made to its corporate structure. To complete its integration and optimize its structure, DMG meccanica has undergone the final step of the acquisition and been renamed GROB Italy S.r.l. in January 2018. The management board remained unchanged and continued to comprise the founders of DMG meccanica Mr. Marco Debilio and Mr. Mauro Marzolla.

To support the important technological development, GROB has set up the new plant in Pianezza as a highly functional center, with an area of 24,000 square meters, of which 4,800 sm are dedicated to production and 3,300 sm to offices and services.

The cooperation was a win-win situation for both companies. GROB took this step in order to strengthen its many years of research and development work in the field of electromobility and DMG meccanica has found in GROB a strong, globally-oriented partner for series production.
Further investments to expand these technologies are planned at both sites in Turin and Mindelheim. So already four years ago, in response to the increasingly progressive pace of technological change with vehicle powertrains, GROB established a Research and Development Team that focused solely on electromobility. Close consultation with renowned representatives from the automotive industry soon revealed a high demand for mass production equipment in this sector, the focus being on two core areas, the electric motor and the battery. In close collaboration with the automotive industry, engineering processes and methods for the series production of high-efficiency electric motors and extremely compact battery modules with a high power density are being developed and trialed on over 2,500 mÂČ of space. “GROB is currently working on several projects for electric drives in the international automotive industry,” says German Wankmiller, Chairman of the Board & CEO. He goes on to explain: “Thanks to a team of specialists and development engineers, GROB can realize each and every one of these projects. As a general contractor, we are already able to handle large orders and offer machines and systems for electric motors, battery modules and fuel cells.”

For stator production in particular, there are various manufacturing methods for inserting copper wires into the stator slots. GROB covers the wave winding technology, the hairpin method and the fan coil technology.

Product portfolio

GROB’s innovative prowess in the automotive industry has led to the electric motor and battery being pushed forward into a new technological dimension, and to the development of electric motors achieving high power density and efficiency. The challenge is to manufacture very precise, process-stable and precisely-timed machines and equipment, since very narrow tolerances are vital for achieving efficiency. As a general contractor, GROB offers a wide portfolio of such machines in the field of stator, rotor and electric motor production. The production program ranges from individual semi-automatic machines to fully automated complete solutions. For stator production in particular, there are various manufacturing methods for inserting copper wires into the stator slots. GROB covers the wave winding technology, the hairpin method and the fan coil technology. In addition, GROB Italy S.r.l. offers the inserting technology and needle winding. This means that GROB can market and operate all the production processes required in the automotive industry. GROB supports its customers, from the initial idea to the system concept for prototypes through to large-scale series production. In addition to electric motors, the field of battery systems represents the second most important of the pillars for the future of electric mobility. The production of battery cells and the reliable assembly of battery systems is becoming increasingly important. As a specialist in assembly technology and automation, GROB is ideally positioned as a provider of turnkey equipment to also be capable of providing future-proof and reliable systems engineering in the field of battery systems. To meet the demands of car manufacturers in the field of battery systems, very versatile engineering is required, for which GROB develops new and innovative system concepts focusing on process stability, precision and flexibility, taking cost factors into consideration. With a team of specialists, the GROB technicians work on futureproof production processes and make an important contribution to the development of intelligent concepts from ideas to series production. In module assembly, individual battery cells are processed to form a module. The requirements for battery systems as energy storage systems are tremendously high in terms of product, production technology and safety, and optimal quality is demanded in view of the delicate cell chemistry, so production lines must be fully automated and interlinked. But at the end of the day, the success of production is largely dependent upon understanding and optimization of the overall process. For this reason, GROB offers support to its customers at all stages of the value-added chain the technical know-how needed for this is partly drawn from similar processes in assembly technology.

Relevant markets and future scenarios

Electromobility is gaining importance at an increasingly fast pace, and transformations in vehicle drive technology have already begun. The markets have responded to these changes in various ways. GROB though, with its inherent strength and experience of making highly productive manufacturing and assembly lines, has already squared up to this new challenge. The GROB Group champions a uniform procedure and sales structure, and this is closely coordinated with the headquarters in Mindelheim. Since Europe and China are among the electromobility forerunners and the proportion of e-drives in China for the next few years has been laid down by legislation, investments in this sector are very high. With its expertise as a turn-key supplier, recognized by the automotive industry on many occasions, GROB has already mastered all the processes and technologies required to offer system concepts for reliable and cost-efficient series production. No surprise, then, that GROB is already considered the first point of contact in the electromobility sector – the testimony being the first extensive orders from the automotive industry. In this process, the Italian production plant is playing a key role within the GROB Group alliance to secure positive future prospects for the company.

GROB took this step in order to strengthen its many years of research and development work in the field of electromobility and DMG meccanica has found in GROB a strong, globally-oriented partner for series production.

Ground breaking ceremony of the new GROB Italy plant

The transfer of the GROB Italy plant from Buttigliera Alta to Pianezza is part of a long-term development plan which intends to make Pianezza a place of reference regarding the design and manufacturing of special machines and automation solutions for the production of electric motors. To support this important technological development, GROB has set up the new plant in Pianezza as a highly functional center, with an area of 24,000 square meters, of which 4,800 sm are dedicated to production and 3,300 sm to offices and services. It is intended to pool the whole production cycle from conceiving an idea to its practical implementation. Currently, the financial investment provided is approx. ten million euro. The workforce at the moment comprises about 60 employees, but GROB Italy is planning an increase of about 40 to 50 new jobs in the first phase to meet future needs.

Air becomes electric

Specialized since the foundation, in 1955, in the production of laminations for motors and transformers, Trancerie Emiliane, owned by Felisa family, are unavoidably interested in the e-mobility theme.

At the beginning, it was the sound, and precisely the unmistakable one by Beatles. On tour in Italy in the early Sixties, the four from Liverpool clearly needed all possible stage equipment, starting with amplifiers. They were supplied by Davoli’s made in Italy, whose resonance boxes were echoed by the transformers by a small Parma company. We are speaking of Trancerie Emiliane that few years before had stemmed from the entrepreneurship of Pietro Felisa, founder driven by ingeniousness and the will of leaving war miseries behind. Since then, Felisa workshop has developed up to gaining the sizes and the renown as big international manufacturer of laminations for transformers and electric motors, entering the world of induced activities of leader global brands in automotive and not only. Today it relies on a subsidiary in Slovak territory and 350-400 workers in all, with a turnover of 150 millions. The time seems propitious for further great strides, due to the clamour aroused by the race to e-mobility.

Felisa family. From left: Paolo, Nadia, Pietro (founder) and Franco

The managing director Franco Felisa strongly believes that the electrification of light transports, or at least their strong hybridization, represents the (sustainable) future of mobility and perhaps of even human kind, even if he is aware that the road to be travelled is still long and will reserve new surprises.
«E-cars and hybrid», he told Electric Motor Engineering, «are the vehicles of the future but I do not think that their definitive success, that is to say the complete replacement of thermal engines with electric motors, can be implemented in the short term.
Let us just consider the infrastructural deficiencies from which we suffer, for instance, in terms of energy production and distribution capacity.

Trancerie Emiliane has developed up to gaining the sizes and the renown as big international manufacturer of laminations for transformers and electric motors, entering the world of induced activities of leader global brands in automotive and not only

The game and the candle

In spite of that, the investments by big brands and by some representatives of their induced activities do not seem to leave any doubt: they are constantly growing.
The numbers at stake are attractive even if, currently, the planned output is in most cases equal to less than one tenth of means of transport produced in the world in one year.
While vendors generally compete on the distance covered and the mileage of their cars, their supply chain, to which also Parma brand refers, copes with fully different matters, like the development of the production of new components that imply the implementation of equipment to be used in brand-new forefront manufacturing lines.
«Another fundamental step for the success of the electric mobility», commented Franco Felisa, «is represented by the development of batteries, and the issue is not exclusively of commercial or technological character.
The automotive industry is working hard to establish long-term agreements with the owners of lithium mines to be sure it will be supplied with the precious mineral.

A shock of realism

In the opinion of Franco Felisa, batteries must be recharged in the lapse of few minutes and the recharge must be sufficient for hundreds of kilometres to allow zero-impact four-wheels to keep their promises and to meet market requirements.

Nowadays, unfortunately this technology is not available, yet, and, in fact, it needs too much time for a complete recharge, with which it is not possible to travel long distances, yet, and anyway at low average speed.
To succeed in the aim of giving more autonomy and higher average speed to vehicles, manufacturers must strive to produce less energy-eating electric motors.
One of the feasible ways is certainly the reduction of sheet metal thicknesses.
Instead of the common 0.5 mm thickness used for standard electric motors, already today automotive uses thicknesses from 0.35mm to 0.27mm, but some automotive companies report and produce prototypes with sheet metal thickness of 0.19 mm.
This requirement urges the entire chain to an epochal change in the implementation, for instance, of the necessary steels, as well as of apt equipment and machines for blanking the laminations for the production of electric motors.

Today Trancerie Emiliane relies on a subsidiary in Slovak territory and 350-400 workers in all, with a turnover of 150 millions

In my opinion, this is the approximate situation we are likely to face for the whole current year.
From 2020 to 2021, the numbers of electric vehicles introduced by companies into their ranges will be much broader.
Certainly, we cannot get off the running train of the e-mobility and Trancerie Emiliane are ready for racing and for satisfying its customers’ demands and needs.

Zero tolerance

In comparison with past years, before the 2008-crisis, certainly the whole market scenario has radically changed, for instance with delivery terms dropped from some months in the past to the present few weeks, as well as quality, irredeemably shifted to zero PPM. Despite criticalities, Felisa irremissibly considers automotive as the core of his company’s next initiatives and he is certain the future coincides with the diffusion of the e-car.

Trancerie Emiliane, Parma Headquarters

4.0 blanking

«We have clear ideas about what we would like to do», he anticipated, «but in a scenario of such a difficult interpretation caution is mandatory.

We imagine a robotic “next” factory, with electric trains that will handle goods in absolute autonomy, and fully automated warehouses, too, without anyway ever forgetting the human factor that is, and must remain, the focus of each of our thoughts or actions. On the other hand, employees’ competences and their way of working are expected to live an epochal change. Besides machines, workers are and will be called to increasingly use forefront consoles of collection and transfer of data concerning single job orders and all that can be used to fulfil them.

AIDA MSP
AIDA presses in Trancerie Emiliane plant

The AIDA MSP allows producing high precision and high-efficiency motors such as EV motors, HEV motors and energy-efficient home appliances motors. AIDA MSP presses are characterized by a remarkable dynamic precision due to both the compact design and the multiple suspension points architecture in line, to the native AIM function (Adjust In Motion) and to the balance reached between the high rigidity and the large surface of bed area. AIDA MSP presses guarantee unsurpassed accuracy and the longest die life thanks to the lowest deflection characteristics. Moreover, all areas that transmit the press the forming loads, such as the connecting rod bearings and the crankshaft bearings, are made from special metals selected to avoid heat deformations. Ideal for production of parts featuring thicknesses under 0.2 mm Multiple suspension points Oil temperature control unit Caliper type clutch and brake Highly rigid frame Highly rigid guidepost Adjust In Motion function (AIM)

Trancerie Emiliane has recently bought new AIDA presses that will be interconnected with the company, actively participating in the industry 4.0 project

We imagine the next job as absolutely less heavy from the physical point of view but much more committing in intellectual terms.
To compete globally, we must create further flexibility and this is accomplished through studies and investments in people and machines.
Trancerie Emiliane’s programme includes the implementation of a central unit or control tower that tracks in integrated way the information about activities in course and productions, the state of the art of each machining, which can be monitored step by step from remote.
Concerning this, Trancerie Emiliane has recently bought new AIDA presses that will be interconnected with the company, actively participating in the industry 4.0 project.

Sipro completes its competences portfolio in the field of electric motors

With the entry into the group Cravanzola & Veglio, Sipro competences regarding the automatic lines for the production of electric motors have been increased.
Sipro is able to manufacture complete turn-key plants, consisting of line for stator production, rotor preparation line, assembly and test lines, focused mainly on brushless motors.
The stator architectures that can be obtained with Sipro equipments are of different nature: from single poles to unique stator stack, with all insulation solutions actually used on the market.
Sipro is manufacturing its systems with the competences acquired during 40 years winding experience, counting on systems with rotating spindle, flyer or needle winding, all single or parallel multi wires.
To this we must add the experiences gained in the last twenty years in the construction of core insulation systems, with automatic application of plastic components, handling molded elements or forming and applying insulation films, pre-glued, glued at the moment or simply applied and held by the motor’s heads.
Downstream of the winding there are several applications developed for forming and closing the stator stack, dedicated to its insertion in the motor body as well with hot and cold solutions.
Also in this case the competences have been developed at 360 degrees, going from the plasma welding systems to the laser ones.
With reference to the contacting system, also in this case, the various requested solutions have been studied and constructed both with servo manual cabling and crimping activities and with robotized systems with welding or soldering of the winding pins on connectors or on PCBs directly.
The revolution mainly connected to the entry into the group Cravanzola & Veglio is the automation to produce the stator with permanent magnets. In fact, the competences acquired by the group in the preparation and fixing of the magnets, their magnetization and application on the rotor as well as all the phases linked to the shafts assembly, bearings etc have enriched and expanded the opportunities portfolio that can be offered by Sipro.
Quality, control and reliability are the guidelines of the plants manufactured by Sipro, associated to the employment of new technologies, the research of continuously new solutions that allow Customer an energy save, increasing the efficiency and the possibility to monitor and govern the processes at each time with full knowledge.

Meccanotecnica Umbra: design and production of mechanical seals

Meccanotecnica Umbra is today a multinational Group, whose headquarters based in Campello sul Clitunno (Perugia, Italy) and offers a comprehensive range of solutions in design and production of mechanical seal systems, particular types of seals for hydraulic pumps that find application in automotive sector, household appliance sector and in various fields of industrial sector, including high-performance applications, chemical, petroleum, food and renewable energy plants.

A new technology implementing electric head commutators

electric commutators
Using a minor quantity of copper is a possible thanks to the development of a new manufacturing technology, based on cold moulding.

Reference partner in the production of hook-type electric commutators for A.C. and D.C. motors, Cagnoni operates on the market with a very broad range of products (diameters starting from 15 up to 30 mm), suitable for small appliances, automatic door-opening systems, automotive, power-tools, and so on. Such products are implemented starting from a continuous element (copper tube of 5 m) exploiting a unique up-to-date technology, which provides for obtaining the internal grips of the commutator bars from that part of semi-finished product that would be then removed by the successive milling phase.
In that way, no copper is added to create the gripping itself.
That process, developed by Osimo (AN) company itself, will enable a minor waste of raw materials, without affecting the product quality and granting total reliability and extreme flexibility to its customers.
Concerning the sector of electric head commutators, the last decade has been characterized by more and more articulated and interacting competitive factors, summarized in the following points: reduction of sale prices, decrease of component costs, rise of the contents and of the performances of electric motors, increase of the reliability and duration demands.
The offer excess compared to the demand, together with the appearance of unbranded products on the market and, especially, of big low cost producers, have determined a price fall and a standardization “towards the middle” of the functional characteristics of products. In this context, the sector companies’ challenge consists in enhancing the quality and the variety of the offered services by seizing, for instance, the potentialities made available by new technologies.

Increase performances and tear the costs down

The primary manufacturers of electric head commutators use a consolidated technology that provides for the assembly of copper bars (manufactured through cold drawing, successive parting-off and eventual removal of material in excess) around opportune positioning cages. Then they proceed to the moulding of the thermosetting resin to fix the position of bars, to the milling to create voids on the head, the undercutting to eliminate insulating material present between one bar and the other, to turning to achieve the final geometry and, finally, to finishing operations. A technology that certainly allows implementing components that feature good performances and quality but nevertheless, still today, affected by a series of problems and criticalities among which the main ones concern: the use of a big quantity of raw material (copper) connected with the fact that the piece geometry is obtained by stock removal.

electric commutators
Complete motor.

The need of removing the insulating material from the sliding surface of the brush (undercutting) which implies quite long machining times, due to the particular product geometry (accentuated head overhang), it is necessary to use cutters with very small diameter (about Ø 10mm) that perform a very low feed speed (scarce product productivity).
Moreover, the undercutting needs a very precise cut positioning, with the result of calling for level electronics (tracking mode cutting) and of producing anyway a certain quantity of non-compliant products.
The inner gripping of the commutator bar, realized through a big T-shaped protuberance, it too of copper, which notably increases the mass to be held while rotating.
Dealing with the current above-described survey, it is therefore obvious that the development guidelines of the reference market precisely converge towards an ever-growing demand for new technologies, for increasingly performing products at low costs. Research and development, strongly pursued by Cagnoni itself, over the last few years was aimed at studying, experimenting and developing an alternative technology to the conventional ones used by competitors today.
Such technology, which provides for cold moulding (instead of the traditional stock removal machining), will permit to manufacture copper head commutators (therefore optimizing the use of raw materials) with better final characteristics, lower industrial costs than those applied on the market today and with both economic-productive and environmental benefits.
Therefore, the company’s R&D department intends to create a different product/process from the present state-of-the-art.

Printed circuit boards: Piciesse Elettronica and its Heavy Copper technology

Piciesse Elettronica manages a broad range of technologies for a wide number of sectors, one of them concerns big copper thicknesses and is called also “Heavy Copper”; it refers to printed circuit boards with high copper thickness, exceeding the “standards” and starting from at least 105”m.

Nowadays Piciesse Elettronica, with its 25 years of experience, is a leader company in the market of Printed Circuit Boards. Over the years, it has succeeded in managing a broad range of technologies for a wide number of sectors, one of them concerns big copper thicknesses and is called “Heavy Copper”, too.

The Heavy Copper technology refers to printed circuit boards with big copper thickness, exceeding the “standards”, starting from at least 105”m. To process circuits that start from 105”m of copper as “minimum” thickness, it is necessary to conform to special requisites and, as plant, to rely on the most advanced production technology and techniques, in addition to excellent process monitoring.

The circuits based on heavy copper technology can be single-sided, double-sided or multilayer; due to its knowledge and Know-How, Piciesse can manage maximum thicknesses of 2 mm, i.e. 400”m, of copper.
Such technology proves to be particularly advantageous in the management of the thermal and mechanical stress and it benefits from the application on IMS (Insulated Metal Substrate) circuits, which allow a higher heat dissipation, thus creating a complete, performing and reliable solution.

The availability of various materials combined with different dielectric layers offers design opportunities of different nature from the thermal and electric insulation point of view.

Not fortuitously, the products that make use of such technology are “special” as they sometimes face extreme conditions. The sectors that more exploit this technology are Power, Welders, Forklifts, Caddies, Converters, Inverters, Charging, Automotive (power units), here especially in the ambit of electric vehicles, the latter in exponential growth recently.

Piciesse has specialized and has invested precisely in this sector in the last few years, making important changes:

  • structural, it has bought a 5000 sq.m. shed;
  • technological, introducing relevant industrial automations in compliance with Industry 4.0;
  • process, it conforms to VDA 6.3 standards, through which it has been audited with excellent results and it owns a multiplicity of certifications starting from IATF, fundamental to work in this market.

A long travel towards Industry 4.0

At the presence of the international corporate management and, invariably, of city authorities, the global giant of electronic and electromechanical equipment Ametek has inaugurated a new pole that, from Milan outskirts, aims at the core of the fourth industrial revolution.

by Roberto Carminati

What Ametek has accomplished in the Lombard factories at Ripalta Cremasca (Cremona) and Robecco sul Naviglio (Milan) has been “a fascinating travel that lasted as many as thirty years”. Moreover: “our history on the territory is a vicissitude of constant growth supported by the contribution of our precious human resources and, from the financial point of view, it is a successful course”. These concepts and words were used by the Vice President of the US multinational Matthew C. French to bid symbolically farewell to the two pre-existing manufacturing sites and to start now a new chapter where technological innovation and services are the protagonists.

At the end of last year, the giant of electronic and electromechanical equipment, which achieves a yearly sales volume of about four billion dollars, inaugurated in fact new headquarters at Peschiera Borromeo, in the outskirts of Milan. The company presented it as an event in great style, attended by local authorities and naturally by its customers and suppliers.

An excellence centre that favours synergies

As the Managing Director of Ametek Italia Srl – MAE Uwe Lorenz opportunely highlighted, “a sound tradition is the ideal foundation on which building the future”. The future of the brand, which relies on 150 manufacturing sites in the world employing 17,000 workers overall, precisely starts from here, from a plant that, in the intentions of the corporate management, is expected to stand out as a «global excellence centre»; in other words, to ranks as “a real reference point of international relevance where to make further progresses, working side by side”. The headquarters at Peschiera Borromeo take up an overall area of 7,500 square metres and host almost 230 employees whose number is going to rise again, in the management’s intentions. It holds a strategic position – it is located half way between the previous locations at Ripalta Cremasca and Robecco sul Naviglio – and its propensity is also, or even mainly, strategic. “The aggregation of activities and the unification of processes will favour the creation of new synergies to full benefit of the development of our business units”, Uwe Lorenz told concerning this. He was echoed by the Managing Director of Ametek Srl Stefano Milani, in whose opinion, with the initiative accomplished in December 2018, “the competitive capacity of Ametek” in the segment of «precision instruments for the Italian market” will receive “new boost”, thus strengthening the ranking of a supplier that, by full title, thinks of “always having been in the forefront of the innovation and development of new products”.

Expansion strategy

Until now, the Group’s expansion strategy has been strongly driven by takeovers and such will of growing by external lines is well witnessed by the big number of brands grouped by each of its business units. Everything started in this way, in our Country as well, with the takeover of a local company about thirty years ago, in 1990.

Uwe Lorenz, Managing Director of Ametek MAE Italia srl
The aggregation of activities and the unification of processes will favour the creation of new synergies

As important are the other three bearing pillars of Ametek’s activity in Italy and in the world, i.e. operation excellence, product innovations and the international growth. “We own – further pointed out Stefano Milani – “dozens of business units worldwide and some refer to highly renowned brands operating on the domestic territory, too. In our new factory at Peschiera Borromeo we can welcome customers and potential buyers in a fully renovated environment that houses laboratories and showrooms, too. Being closer to customers results in higher efficacy, in line with an ambitious growth plan”. Highlighting development potentialities is not fortuitous and also the municipal councillor of Peschiera Borromeo Franca Costa affirmed “to be impressed by such a broad project of integration and economic development on the territory”, consistently with the local policy welcoming entrepreneurial initiatives. Moreover, coherently with the staff management policy that characterizes the manufacturer and starts from the idea that the quality of products also depends on the specialization and education opportunities the company can assure to workers.

Matthew C. French, Vice President of the US multinational, Stefano Milani, Managing Director of Ametek Srl and Uwe Lorenz, Managing Director of Ametek MAE Italia srl

The fourth industrial revolution, according to Ametek

Mauro Garantola, Marketing and Sales Manager of Ametek Italia Srl – MAE explained in an interview how all this can turn into an Industry 4.0-oriented strategy: “Digitalization, which represents one of the key elements in the shifting to the fourth industrial revolution is a growing trend in our customers’ project specifications; it is clear that, in this innovative transition, we are fully involved in the research and development of solutions for our partners”.

The meaning of the operation that was accomplished in the record time of six months only, as the multinational underIined in its official releases, is also another: “this site”, added Garantola, “is aimed at grouping functions that were previously distributed in different sites and its purpose is essentially logistic and organizational. It witnesses to what extent we believe in the fulfilment of new synergies». And of how strongly Ametek, we daresay, believes in its own growth potentialities: “This is our goal”, Garantola finally states, “concerning both human resources and engineering and sales. Regarding the future, we envisage excellent opportunities for a further successful consolidation, especially in the ambits of industrial automation and of medical technologies”.

The goal is mass production of highly effective electric motors

Car ride on road in sunny weather, motion blur

Against the background of the paradigm shift in the powertrain of the motorcar, a research and development team was set up at GROB three years ago tasked solely with the theme of electromobility. Working in close collaboration with wellknown representatives from the automotive industry, it quickly became clear that there was a great need for mass production installations in the automotive industry, with a particular focus on key components, namely the electric motor and battery components. In order to accelerate the development work, GROB acquired a renowned partner in machine and plant engineering for electric motors, DMG meccanica, benefiting from its expertise in winding and inserting technology. In tandem, a dedicated development and application center for electromobility was created in Hall 2 at the factory in Mindelheim. Spread over more than 2500 mqÂČ (27,000 ft2), work is under way developing and testing processes and methods in machines and installations in collaboration with the automotive industry. The goal is mass production of highly effective electric motors with completely newly developed technologically, as well as of very compact battery modules with high power density.
The challenge facing GROB now is the task of translating these yet unknown processes and methods into precisely timed movements and workflows in completely newly developed CNC machines. The new, highly flexible and servo-controlled machines are used for mass production of the stator and rotor electric motor components. In stator production, in particular, there are various manufacturing techniques for guiding the copper wires into the slots of the stator. The new GROB machine portfolio covers the entire production process for an electric motor, from various winding and shaping processes for the wires to assembly, to contacting.

The new GROB machine portfolio covers the entire production process for an electric motor, from various winding and shaping processes for the wires to assembly, to contacting.
The new GROB machine portfolio covers the entire production process for an electric motor, from various winding and shaping processes for the wires to assembly, to contacting.

One of the core processes in the production of an electric motor is the process of guiding the copper wires into the stator. GROB covers all known processes here, including wave winding technology, the hairpin process and fan-coil technology. GROB Italy Srl also covers the winding/inserting technology as well as the needle winding. This means that GROB can market and operate all the production processes required in the automotive industry.

Electromobility spurs the whole company on

When GROB created a new third division ten years ago with the launch of universal machines, it managed to build directly upon the image of the G-modules, since GROB, as a turnkey supplier in the systems business, already had an excellent reputation in the market. It is not the same with ‘electromobility’. With its technology, it is calling for a new way of working and, thus, for changes in approach. While the processes used in existing divisions form the basis and serve as models, it is important to remember that e-mobility is still a relatively new concept for the automotive industry. All market operators have to adjust their approach. Projects are currently only being set up and developed in close consultation with the automotive industry. Many coordination meetings within the project teams of both parties are needed. This is in contrast to our core business of ‘system machines’, where our business is very much up and running. Sales have been enhanced with the recruitment of specialists with experience in electromobility. Customer inquiries are coordinated in an internal sales meeting and are allocated depending on the technology. A project team consisting of project management, innovation management and sales will then be formed to work out the best possible alternative for the customer.

Electromobility is on the rise worldwide

Since GROB has a very good reputation as a turnkey supplier in the automotive industry, we are highly valued as a partner on joint further development projects.

German Wankmiller, Chairman of the Management Board and Chief Executive Officer at GROB-WERKE
German Wankmiller, Chairman of the Management Board and Chief Executive Officer at GROB-WERKE

‘Not only that’, said German Wankmiller, ‘we already have a command of the complete process and technology and can market it.’ Even though markets are reacting to this at different speeds, GROB sales has adapted to the new technologies right around the world. Within the GROB Group, there is a uniform approach and sales structure which are closely coordinated with the headquarters in Mindelheim. Europe – more especially Germany – and China are pioneers in the field of electromobility. Within the next few years in China the number of electric vehicles will be fixed by law and consequently there is significant investment there. Initial projects are already in progress at GROB. To sum up, it can already be said that GROB is fully geared up for the theme of ‘electromobility’, identifies demand on the basis of market analysis, develops the right products and is already in a position to deliver. We make large development capacities available and have a dedicated team of designers on hand to develop these innovative technologies further.