Method of making torsional vibration damper having a roll spun h

Details Method of making torsional vibration damper having a roll spun h Method of making torsional vibration damper having a roll spun h

1989-06-08

1990-09-04

Ramsey, Kenneth J.

Metal fusion bonding

Process

With shaping

228184, 72 83, B21D 2216

Patent

active

049537784

ABSTRACT:
A viscous torsional vibration damper of the kind operating on the shear film principle has a roll spun annular channel shaped housing providing an annular working chamber within which is mounted an annular complementary inertia mass ring and a viscous damping fluid substantially fills shear film spaces between the working surfaces of the inertia ring and confronting working surfaces of the housing within the chamber. Working surface area of the housing within the working chamber has a spinning roll burnished finish. A roll formed rabbet provides a shoulder seat on one wall of the housing with an edge portion of a closure sealed thereto. Laser welding permanently secures the closure to the housing.

REFERENCES:
patent: 3512612 (1970-05-01), Bragg et al.
patent: 3716901 (1973-02-01), Bragg et al.
patent: 3771380 (1973-11-01), Bahr et al.
patent: 4386728 (1983-06-01), Torok
patent: 4799909 (1989-01-01), Kanemitsu
Storch et al., "Spinning" from Machine Design, Feb. 17, 1972 pp. 140-141.

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