Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1978-05-11
1981-01-27
Goolkasian, John T.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
29505, 29514, 72 74, 72112, 156157, 156502, 156580, 156582, 228 2, 228 29, 228113, B29C 2708, B06B 116, B32B 3120
Patent
active
042473462
ABSTRACT:
A friction welding apparatus for welding a pair of members in which the welding surfaces of the members are contacted under pressure with each other, relative circular orbit motion of the members producing friction therebetween thereby heating and melting the welding surfaces and the relative circular orbit motion being stopped to locate the welding surfaces in a predetermined position. The apparatus comprises an eccentric device including a rotary driving shaft, an inertia member disposed around the periphery of the rotary driving shaft, the inertia member being rotated by the rotary driving shaft and being capable of subjecting an angular movement relative thereto and an eccentric shaft rotated by the rotary driving shaft and engaged with the inertia member so as to be moved by the relative angular movement of the inertia member relative to the rotary driving shaft between a co-axial position with the axis of the rotary driving shaft and an eccentric position spaced by a predetermined distance apart therefrom, a movable table engaged through a bearing with the eccentric shaft for supporting the member to be welded, the movable table being connected by a motion restricting device to a fixed frame to be capable of causing substantial relative circular orbit motion in a plane perpendicular to the axis of the rotary driving shaft, the inertia member being angularly moved by rapid increase in the speed of the rotary driving shaft relative thereto from a first position to a second position such that the eccentric shaft is moved from the co-axial position to the eccentric position and the movable table is put in the relative circular orbit motion, and the inertia member being returned by rapid stoppage of the rotary driving shaft from the second position to the first position such that the eccentric shaft is returned to the co-axial position and the movable table is stopped at the predetermined position.
REFERENCES:
patent: 3062695 (1962-11-01), Hull
patent: 3554845 (1971-01-01), Billett et al.
patent: 3554846 (1971-01-01), Billett
patent: 3732613 (1973-05-01), Steigerwald
Maehara Kazuo
Sato Isao
Asahi Kasei Kogyo Kabushiki Kaisha
Dawson Robert A.
Goolkasian John T.
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