Manufacture of metal articles from wire

Details Manufacture of metal articles from wire Manufacture of metal articles from wire

1985-05-13

1986-05-06

Goldberg, Howard N.

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

29413, 10 27R, 10 27E, B23P 1700, B21K 158

Patent

active

045862311

ABSTRACT:
A multipart article comprising a rod or pin (26) with a sleeve or collar (58) on it is made from one piece of wire by parting off a blank, impact extruding a stem to form the pin or rod, backward extruding a residual portion of the blank to form the sleeve or collar with an internal diameter slightly larger than the diameter of the stem and joined to the stem by a short thin web (64), and then fracturing the web and inserting the pin or rod into the thus separated sleeve or collar.
The advantage in manufacturing small articles on a mass production basis is in the economy of forming two parts in one machine operation rather than making them separately, an example being parts of a blind-riveting assembly.

REFERENCES:
patent: 2466811 (1949-04-01), Huck
patent: 2501567 (1950-03-01), Huck
patent: 3919874 (1975-11-01), Harris
patent: 4059860 (1977-11-01), Fick
patent: 4459256 (1984-07-01), Ziegler
patent: 4506426 (1985-03-01), Booker

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