Other

Fritz Liebrecht

Reinhard Mauermann

Georg Donhauser

Hartmut Carstensen

The invention relates to a method and device for thermally supporting mechanical joints by means of punched rivets with a semi-hollow rivet or a solid rivet or by pounding. The method is characterized in that a local and time limited heating of the joint parts ( ) occurs by means of electric resistance heating in the future forming zone, whereby the heating is carried out by means of a hold-down device ( ) and a matrix ( ) or by elements ( ) arranged next to or elements ( ) arranged in front of said hold-down device and matrix. The heating is initiated at the start of or immediately before the joining process and is completed before the forming begins.

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Dresden, Germany

Fritz Liebrecht