Rivet and method of using the same

Details Rivet and method of using the same Rivet and method of using the same

1983-04-01

1985-07-16

Rosenbaum, Mark

Metal working

Method of mechanical manufacture

Assembling or joining

29522A, 29526A, 411504, B21D 3900, B23P 1900

Patent

active

045287392

ABSTRACT:
A rivet having a cylindrical head portion, a cylindrical shoulder portion of reduced diameter and a tenon portion of further reduced diameter is projected through first and second parts which are to be fastened together. The head portion abuts one side of the first part, the shoulder portion extends a substantial distance through an opening in the first part and the tenon portion projects through and beyond a hole in the second part. An axial bore opens through the head portion and extends into the shoulder portion but stops short of the tenon portion, the bore terminating in an end wall. A first tool is projected into the bore and bears against the end wall to place substantially all of the shoulder portion in tension and to hold the rivet while a second tool engages the tenon portion to deform the latter and form an enlargement engaging the second part, the tenon portion thereby being in compression. The force of tension is greater than the force of compression so that the residual force in the rivet after the latter has been released by the tools is a tensile force.

REFERENCES:
patent: 3270410 (1966-09-01), Salter et al.
patent: 3505923 (1970-04-01), Neill
patent: 4007540 (1977-02-01), Tyree
patent: 4221041 (1980-09-01), Hufnagl et al.
patent: 4223433 (1980-09-01), Rosman
patent: 4286371 (1981-09-01), Falcioni

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