Method of forming a rivet of titanium-columbium alloy

Details Method of forming a rivet of titanium-columbium alloy Method of forming a rivet of titanium-columbium alloy

1975-06-26

1976-08-24

Lanham, C.W.

B21K 158

Patent

active

039757862

ABSTRACT:
A high strength buckable rivet made of an alloy consisting of titanium and columbium, the optimum proportion being about 55% titanium and about 45% columbium. The method of making this rivet includes the steps of cold forming a cylindrical blank so as to form a head and shank of the rivet and cold working the head and a portion of a shank of the rivet so as to leave a ductile tail portion capable to form a buck tail, the optimum length of the ductile portion being about 0.8 times the diameter of the rivet shank.

REFERENCES:
patent: 2027980 (1936-01-01), Horton
patent: 3072933 (1963-01-01), Carlson
patent: 3126561 (1964-03-01), Orloff
patent: 3526032 (1970-09-01), Pipher
patent: 3626531 (1971-12-01), Mazer et al.
patent: 3848389 (1974-11-01), Gapp et al.

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