Fixing element for a friction welding joint
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United States of America Patent
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Jan 10, 2012
Grant Date -
Oct 22, 2009
app pub date -
Sep 14, 2007
filing date -
Sep 20, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a fixing element having a concentric end face forming a frictional surface for friction welding joining to a flat part by rotational force and axial force applied by the fixing element to the part, and having multiple radially oriented ridges on the end face. The ridges are limited in the direction of rotation by a front groove introduced into the friction surface, the ridges rising only slightly over the friction surface in the axial direction and being provided with a scraping surface that pushes the material scraped during the friction welding process into the front groove.
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