Gunnar Nygren shows a new method for joining different materials.
When different materials to snap to each other difficulties arise. A new technology marries together aluminum and steel in a lättviktsbil.
car manufacturers challenge will be to make vehicles easier and easier. It is required that the cars should be fuel efficient and not as environmentally unfriendly.
One solution is to mix different materials: aluminum, steel and composites .
– It is often difficult to join materials. But we have a new technology for this, says Gunnar Nygren, sales engineer at the company EJO & amp; Avdel, which attracted many curious Elmia Subcontractor.
The method, which they call Ejoweld, has been developed in conjunction with Audi but released to rest of the market by year-end.
Instead of a heavy, welded beam compression molded sheet.
- We can get aluminum to attach the high-strength steel with up to 1,800 megapascals, says Gunnar Nygren.
The method is based on friction welding. Boron steel cuts through the material but no heat is not anything other than the friction.
The company will also be presenting another product: the specially designed screw EJOT FDS, which requires no förstansning.
Both the screw and Ejoweld are new methods of material combinations for lightweight construction and suitable for automated production within the manufacturing industry.
EJO & amp; Avdel is a German company, established in Sweden. They are whole suppliers of equipment and components and work as consultants in projects with customers.
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