Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1983-01-21
1985-01-15
Moon, Charlie T.
Metal working
Method of mechanical manufacture
Assembling or joining
29522A, 29526A, 403408, B21D 3900, B23P 1100
Patent
active
044931417
ABSTRACT:
A fatigue resistant rivet in which the head has a distal frusto-conical portion and a proximate frusto-conical portion relative to the shank thereof. The proximate portion has a conical surface with a smaller angle relative to the rivet axis than the conical surface of the distal portion.
A method of securing a fatigue resisting rivet to a work piece including the steps of first deforming the proximate portion to be pressure fit on a countersink to provide residual clamping strain/stress at the base of the countersink and deforming the distal portion to be pressure fit on the countersink to provide a residual claiming strain/stress adjacent the top of the countersink, and deforming the distal and proximate portions against the countersink to provide seal and clamp action between the rivet head and the countersink.
REFERENCES:
patent: 2302772 (1942-11-01), Huck
patent: 3359847 (1967-12-01), Richmond
patent: 3526032 (1970-09-01), Pipher
patent: 3680429 (1972-08-01), Briles
patent: 3747467 (1973-07-01), Rosman
patent: 3828422 (1974-08-01), Schmitt
patent: 3840980 (1974-10-01), Auriol
patent: 3849964 (1974-11-01), Briles
patent: 4000680 (1977-01-01), Briles
patent: 4048708 (1977-09-01), Briles
patent: 4230016 (1980-10-01), Merrell
Barnard Delbert J.
Heberer Eugene O.
Moon Charlie T.
The Boeing Company
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