Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1988-06-03
1990-03-20
Eley, Timothy V.
Metal working
Method of mechanical manufacture
Assembling or joining
29509, 2924354, 295252, 408 25, B23P 1904, B27C 306
Patent
active
049089285
ABSTRACT:
A method and apparatus for riveting two workpieces (10, 12) together by simultaneously upsetting both ends of a slug rivet (R) while maintaining the outer surface (16) of one of the workpieces (10) in a substantially constant fixed work plane (20) during riveting. The workpieces are held between two clamps (18, 28), one of the clamps (18) establishing the fixed work plane. After drilling, a slug rivet is placed within the drilled hole, and then a first riveting ram (42) is moved to establish a desired die cavity. A second riveting ram (58) is then moved until it just contacts the rivet. The rams (42, 58) are then simultaneously moved towards each other at equal rates to simultaneously form upset heads on both ends of the rivet.
REFERENCES:
patent: 3557442 (1971-01-01), Speller
patent: 3874070 (1975-04-01), Falcionni
patent: 4192058 (1980-03-01), Falcioni
patent: 4493141 (1985-01-01), Krezak
patent: 4515302 (1985-05-01), Davern et al.
Tom D. Stone, No Tack Assembling of Wing Skin and Spar Assemblies, SME Technical Paper #AD86-686, 1986, Society of Manufacturing Engineers.
Andrews Mark J.
Birke James L.
Mazurik Frank T.
Dungba Vo Peter
Eley Timothy V.
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