Friction agitation joining method for joining metallic joining members
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United States of America Patent
Stats
-
Nov 9, 1999
Grant Date -
N/A
app pub date -
Mar 24, 1998
filing date -
Mar 25, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a friction agitation joining method for joining metallic joining members, a joining device having a column-shaped rotor of a larger diameter and a pin-shaped probe of a smaller diameter integrally formed on an end of the rotor and protruded along an axis of the rotor is used for joining the metallic joining members. The probe is rotated and inserted into or around a butted portion of the joining members to soften a contact portion contacted by the probe by friction heat and to agitate the contact portion so that the joining members are butt joined. Each joining member has a thick portion at a butting side thereof The rotating rotor is contacted to the thick portions under pressure to soften the thick portions by friction heat so that a gap formed at the butted portion is filled with the materials of the softened thick portions.
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