Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1995-06-06
1998-05-19
Vo, Peter
Metal working
Method of mechanical manufacture
Assembling or joining
2952506, B21D 3900, B23P 1102
Patent
active
057523061
ABSTRACT:
A method of upsetting a headed rivet in a countersunk hole using an electromagnetic riveting machine having two opposed drivers which are impelled against each end of the rivet to upset the rivet with a single stroke of the machine. The movement of the driver at the headed end of the rivet in initiated slightly after movement of the driver at the shank end of the rivet to lift the headed end of the rivet slightly out of the countersink so, when the headed end driver operates, the rivet shank is deformed to fill the rivet hole as the head is driven back into the countersink for good shank interference in the hole adjacent the rivet head.
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Clark Gregory L.
deJong, executor John J.
Hansen, deceased Karl A.
Hare John R.
Neary J. Michael
Nelson Lawrence W.
The Boeing Company
Vo Peter
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