Electric heating – Metal heating – For bonding with pressure
Patent
1992-12-21
1995-02-07
Evans, Geoffrey S.
Electric heating
Metal heating
For bonding with pressure
219 868, 2191171, 219120, B23K 1110
Patent
active
053877748
ABSTRACT:
This welding electrode is one wherein the welding cap 3 of the electrode body 1 carries a contact tip 4 which is securely fastened to it by brazing. Thus, the replacement of this contact tip can be carried out very easily by stopping the circulation of the cooling water in the electrodes, by applying them to a resistive metal sheet and by passing through them a current of sufficient intensity to cause the brazing ring 5 which securely fastens the contact tip 4 to the welding cap 3 to melt. The removal of a worn tip 4 and the replacement of a new tip 4 are carried out in the same manner. The welding electrode also has a contact tip 4 provided with a brazing ring 5, as well as to an automatically operating machine for replacing the tips 4 away from the line for welding the metal sheets T.
REFERENCES:
patent: 2446932 (1948-08-01), Johnson
patent: 4071947 (1978-02-01), Nippert
patent: 4288024 (1981-09-01), Nippert
patent: 4345136 (1982-08-01), Nippert
patent: 4588870 (1986-05-01), Nadkarni et al.
patent: 4794221 (1988-12-01), Takabe et al.
patent: 4935595 (1990-06-01), Fuse
patent: 5073692 (1991-12-01), Jackson et al.
Patent Abstracts of Japan, vol. 8, No. 186, JP-A-59076684 (1 May 1984).
Boyer Jean-Noel
Gall Patrick Le
A R O
Evans Geoffrey S.
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