B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 11/02 (2006.01) B23K 11/04 (2006.01) B23K 35/02 (2006.01) F16B 5/08 (2006.01)
Patent
CA 2051237
16. COMPOSITE WELDABLE STUD AND METHOD OF USING SAME ABSTRACT A composite, friction-weldable stud 22 is used to affix a first plate 24 to a second plate 26 made of dissimilar materials. The stud has a first body 36 made of material compatible with the first plate 24, with the body 36 having a shank 40 and a collar 42 extending outwardly therefrom of a predetermined diameter. The collar 42 has a first surface 46 extending toward the shank 40 with grooves 48 to mate with cooperating ridges 34 of a chuck 30 of a friction-weldable tool 20. The stud 22 further includes a second body 38 of material compatible with the second plate 26. The second body 38 has a friction-weldable nose 60 extending outwardly from the collar 42 and substantially coaxial with an axis of the first body 36. The first and second bodies 36,38 have cooperating threads 58,66 for affixing the two bodies 36,38 together so that they can move as a unit. A hole 68 is formed in the first plate 24 which is larger than the nose 60 but smaller than the collar 42. The nose 60 is placed through the hole 68 into contact with the second plate 26. The stud 22 is then welded to the first and second plates 24,26 by friction-welding with the nose 60 welded to the second plate 26 and the periphery of the collar 42 welded to the first plate 24 around the hole 68.
Bidefeld Branko
Rowley C.a.
Trw Inc.
LandOfFree
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