Method for manufacturing a drum brake shoe

Details Method for manufacturing a drum brake shoe Method for manufacturing a drum brake shoe

1991-05-13

1992-08-11

Seidel, Richard K.

Metal fusion bonding

Process

With shaping

228265, 188250D, B23K 1132, F16D 6506

Patent

active

051372037

ABSTRACT:
A drum brake shoe is provided by fine blanking the brake shoe web (50) so that the web (50) has radially extending weld projections (60) at a circumferential edge (52), with a radial recess (62) disposed on each side of a weld projection (60). As a brake shoe rim (40) is fed through a welding and forming mechanism (65), a flat surface (41) of the rim (40) engages a radially extending weld projection (60) and a weld is effected. Welding wheels (90, 100) of the mechanism (65) rotate to bend the rim (40) and engage the rim (40) with the next weld projection as a weld is effected between the rim (40) and web (50). The manufacturing method will provide a more consistent welding process that will result in a higher percentage of quality welds and less scrappage.

REFERENCES:
patent: 1659368 (1928-02-01), Long
patent: 1736539 (1929-11-01), Lachman
patent: 1737013 (1929-11-01), Brie
patent: 1818090 (1931-08-01), Peterson
patent: 1826283 (1931-10-01), Mooers
patent: 1937997 (1933-12-01), Townsend
patent: 2541253 (1951-02-01), House
patent: 3265166 (1966-08-01), Lavengood
patent: 3878749 (1975-04-01), Carmeli
patent: 4387288 (1983-06-01), Boros

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