Control of friction and inertia welding processes

Details Control of friction and inertia welding processes Control of friction and inertia welding processes

1987-04-24

1988-07-19

Godici, Nicholas P.

Metal fusion bonding

Including means to provide heat by friction between...

228 9, 228102, 228113, B23K 1902

Patent

active

047579323

ABSTRACT:
Known methods of controlling inertia welding and friction welding processes fail to control metal upset, and so require post machining of the welded components. The invention pre-determines the ideal rates of relative rotation, force applied and metal upset rates for a given material to be welded, enters those rates in a microprocessor memory and then connects the microprocessor to the apparatus on which the weld is to be effected. The microprocessor monitors the actual rates, compares them with the ideal rates and, should differences occur, generates signals from those differences with which to adjust operation of the apparatus.

REFERENCES:
patent: 3678566 (1972-07-01), Ellis et al.
patent: 3720993 (1973-03-01), Farmer et al.
patent: 3998373 (1976-12-01), Jones et al.
patent: 4067490 (1978-01-01), Jones et al.
"Friction Welding of Butt Joints in Metals for High Duty Applications", British Standards Institution, 1982, pp. 1-13.
1125 Machine Moderne, "Control in Friction Welding", 1983, No. 874, pp. 60-62.
Werkstatt und Betrieb, "Friction Welding from the Point of View of the User", 1979, pp. 295-297, vol. 112, No. 5.

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