Riveting method expanding a work counterbore

Details Riveting method expanding a work counterbore Riveting method expanding a work counterbore

1976-05-17

1977-09-20

Moon, Charlie T.

Metal working

Method of mechanical manufacture

Assembling or joining

29522, 85 37, B21D 3900, B23P 1100

Patent

active

040487083

ABSTRACT:
The method of securing a rivet slug to structure containing a bore, a substantially cylindrical first counterbore that opens to one side of the work, and a second counterbore that tapers forwardly between the first counterbore and said bore, includes the steps:
A. inserting the slug to extend within the bore and counterbores, and
B. deforming the slug axially and radially to fill the bore and counterbores and to expand the first counterbore.

REFERENCES:
patent: 2482391 (1949-09-01), Webster
patent: 3239036 (1966-03-01), Scott
patent: 3634928 (1972-01-01), Falcioni
patent: 3747467 (1973-07-01), Rosman

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