Integral rivet and method of making

Details Integral rivet and method of making Integral rivet and method of making

1987-03-09

1988-11-15

Schmidt, Frederick R.

Metal deforming

Process

Deforming sheet metal

413 8, 29509, 295221, B21C 3702

Patent

active

047839856

ABSTRACT:
A method of forming an integral rivet in a sheet metal panel by successively coining portions circumscribing a central portion thereof so that the end panel stock is not stretched and a long shanked rivet is produced. The rivet has a relatively thin wall shank and a relatively thick crown which provides sufficient metal for stacking into a rivet head having a wide formable flange.

REFERENCES:
patent: 3191564 (1965-06-01), Fraze
patent: 3440713 (1969-04-01), Henchert
patent: 3479733 (1969-11-01), Brown
patent: 3638597 (1972-02-01), Brown
patent: 4533064 (1985-08-01), Kawamata et al.
patent: 4580692 (1986-04-01), LaBarge et al.

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