Dies for forging and trepanning large diameter couplings and met

Details Dies for forging and trepanning large diameter couplings and met Dies for forging and trepanning large diameter couplings and met

1977-11-07

1978-08-22

Gilden, Leon

Metal deforming

With cutting

By shearing tool-couple

72338, 72356, 72370, B21D 2800

Patent

active

041079728

ABSTRACT:
A die and cooperating parts for forging and trepanning large diameter couplings and a method of forging and trepanning such couplings. A single die is used with a series of cooperating inserts and a riser in performing all the various steps necessary to forge and trepan the coupling. The same die and riser with appropriate inserts also can be used in forging and trepanning couplings of a range of sizes.

REFERENCES:
patent: 783889 (1905-02-01), Perkins et al.
patent: 1171344 (1916-02-01), Legere
patent: 2348179 (1944-05-01), Moore
patent: 2369299 (1945-02-01), Kafowi

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