Electric heating – Metal heating – For bonding with pressure
Patent
1980-07-07
1982-10-05
Shaw, C. C.
Electric heating
Metal heating
For bonding with pressure
219104, B23K 1104
Patent
active
043529720
ABSTRACT:
A method consists in that the workpieces to be welded together are at first continuously moved towards each other with the welding current on and the ends of the workpieces are fused, the thermal state of the ends being monitored in terms of current, or of power, or of fusion time, or of length of the fused portion. After any of said variables has reached a preselected value which corresponds to the predetermined heating of the contact region, oscillatory movements are superimposed on the movement of one of the workpieces being welded towards the other and the fusion process is carried out till upsetting.
REFERENCES:
patent: 2298051 (1942-10-01), Gordon et al.
patent: 2324944 (1943-07-01), Millwood
patent: 3479482 (1969-11-01), Erwin et al.
patent: 4164638 (1979-08-01), Ulmer
Bogorsky Mikhail V.
Cherednichok Vitaly T.
Krivenko Valery G.
Kuchuk-Yatsenko Sergei I.
Lebedev Vladimir K.
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