F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/16, 78/43
F16B 5/08 (2006.01) B23K 20/12 (2006.01) B23K 35/02 (2006.01)
Patent
CA 1309884
ABSTRACT OF THE DISCLOSURE A friction-weldable stud is provided. The stud in- cludes an elongate body having a collar or skirt located around the body and extending outwardly therefrom. The collar has a first surface facing in one direction toward one end of the body, with the surface having an engagable configuration for engagement by a cooperating configuration of a chuck of a welding tool. The tool can thereby rota- the stud and also apply an axial force to it through the chuck and collar. The collar has a second surface facing away from the first surface preferably with an annular groove which helps shape the weld material and control flash during the welding. The body also has a friction- weldable nose or end extending outwardly from the collar in the direction of the axis of the elongate body by means of which the stud can be affixed to a workpiece by a friction- welding technique. The surface of the nose has a plurality of ridges thereon which are designed to help clean the sur- face of the workpiece as the stud is rotated during the welding operation. The stud can be made in one piece or in two pieces with the body of the stud and the collar being separate. The collar and the body then can be made of different materials. -19 -
596663
Jenkins John C.
Rowley C.a.
Trw Inc.
LandOfFree
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