Metal working – Method of mechanical manufacture – Shaping mating parts for reassembly in different positions
Patent
1977-11-15
1978-12-12
Keenan, Michael J.
Metal working
Method of mechanical manufacture
Shaping mating parts for reassembly in different positions
291591, 29525, 29434, B22F 500
Patent
active
041289331
ABSTRACT:
The invention relates to a process of making small diameter non-skid metallic studs, for tires, composed of a hard material small rod and of a metallic sheath having an elongated longitudinal axis. The sheath includes a fitting or mounting socket for the small rod, at least one small anchoring collar, and a narrowed intermediate section of smaller diameter than the lower and upper adjacent sections. The process comprises forming a sintered rough shaped sheath of at least 85% of theoretical or maximum density which sheath includes the rod's fitting; introducing the small rod in its fitting, leaving an empty space less than 0.6 mm between the rod and the fitting's base; and bringing the sheath to its final shape through trimming or rolling, in particular, in the narrowed section, while holding tightly the sheath's section surrounding the small rod.
REFERENCES:
patent: 3196921 (1965-07-01), Hakka
patent: 3220455 (1965-11-01), Sowko
patent: 3408730 (1968-11-01), Anderson
patent: 3680195 (1972-08-01), Lejdegard
patent: 3719478 (1973-03-01), Cantz
patent: 3811877 (1974-05-01), Hakka
patent: 3837386 (1974-09-01), Lejeune
patent: 4059879 (1977-11-01), Chmura et al.
Eurotungstene
Keenan Michael J.
LandOfFree
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