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EMO 2017

Inspiring ideas for lightweight construction

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HASCO Hasenclever GmbH + Co KG
Renishaw plc
DIPROFIL Diamantprodukter AB
Fraunhofer-Institut für Produktionstechnologie IPT
Verein Deutscher Werkzeug- maschinenfabriken e. V. (VDW)

Lasering, not bonding

Another critical consideration is joining CFRPs to metals. Up to now, an adhesive bonding process has been used, which according to Filippos Tzanetos has four disadvantages:

  • The CFRP surface has to be machined mechanically. This leads to unsteadiness and a weakening of the CFRP’s properties.
  • It guarantees only a low level of mechanical strength (per joint: 10 to 40 megapascal).
  • It is closely dependent on the ambient conditions (e.g. temperature, soiling, chips, cooling lubricant).
  • Bonded joints possess a low resistance to wear.
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All these disadvantages are eliminated by a lasering process. But it’s not only the joining technology that MAP’s Branch Manager sees as problematic. “In order to assure precise positioning and reproducibility accuracies in the machine even in the case of high dynamic response, we scrape off the layers on the linear guides by hand,” says Christoph Tischmann. “It’s now an enormous challenge for us to accomplish this with CFRPs as well.”

Despite all these difficulties, the change-over to CFRP has been worth it, opines the expert with a view to the EMO Hannover. The machine tool manufacturer is thinking about a shared information stand with the Fraunhofer IPT, in order to showcase the advances and procedures involved with this “new material”. “Basically, at the end of this project we aim to be putting a dynamic, high-precision, and above all powerful machine on the market,” explains Christoph Tischmann. “We would like to see it becoming widely accepted in the aerospace sector, particularly.”

EMO Hannover is also inspiring the academic community

Additional Information
INFO
EMO: Trade fair for the metalworking industry

From 18 to 23 September 2017, international manufacturers of production technology will be spotlighting “Connecting systems for intelligent production” at the EMO Hannover 2017. The world’s premier trade fair for the metalworking industry will be showcasing the entire bandwidth of today’s most sophisticated metalworking technology, which is the heart of every industrial production process. The fair will be presenting the latest machines, plus efficient technical solutions, product-supportive services, sustainability in the production process, and much, much more. The principal focus of the EMO Hannover is on metal-cutting and forming machine tools, production systems, high-precision tools, automated material flows, computer technology, industrial electronics and accessories. The trade visitors to the EMO come from all major sectors of industry, such as machinery and plant manufacturers, the automotive industry and its component suppliers, the aerospace sector, precision mechanics and optics, shipbuilding, medical technology, tool and die manufacture, steel and lightweight construction. The EMO Hannover is the world’s most important international meeting point for production technology specialists from all over the planet. In 2013, the fair attracted more than 2,130 exhibitors, and around 143,000 trade visitors from more than 100 different countries. EMO is a registered trademark of the European Association of the Machine Tool Industries CECIMO.

emo-hannover.de

The IPT scientist, too, sees collaborative projects like that with MAP Werkzeugmaschinen GmbH as a good option for exploring new paths in a process of mutual feedback with the industrial sector. The project currently ongoing has encouraged the researchers in Aachen to press ahead with industrial partners in the field of CFRPs. Filippos Tzanetos and his colleagues from the academic community will be getting further input on comparable material-related questions and on lightweight construction in September at the EMO Hannover.

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