Electric heating – Metal heating – For bonding with pressure
Patent
1990-07-11
1992-06-23
Shaw, Clifford C.
Electric heating
Metal heating
For bonding with pressure
219109, B23K 1125
Patent
active
051245213
ABSTRACT:
For improving the quality of welding operations, in a process for alternating current welding, in which during a period the actual r.m.s., welding current is measured and the phase displacement of the use of current flow during the next period of the a.c. current is regulated. Variations of the actual r.m.s. welding current during all the welding periods already performed are taken into account and compared with a desired r.m.s. current during the welding period to be performed. A welding apparatus for alternating current welding using two welding electrodes, a power supply for the same and a device for regulating the r.m.s. welding current during each a.c. voltage period has a computer for taking into account variations of the actual r.m.s. welding current during preceding welding periods of a welding operation compared with a desired r.m.s. welding current flow during the further welding periods to be performed of the particular welding operation.
REFERENCES:
patent: 4516008 (1985-05-01), Jones
patent: 4634830 (1987-01-01), Furudate
patent: 4795877 (1989-01-01), Bridgstock et al.
patent: 4954686 (1990-09-01), Izume
Abstracts--vol. 6 #1 Jan. 7, 1989 56-126084.
Abstracts--vol. 13 #300 Jul. 11, 1989 1-91978.
Boyer Jean-Noel
Pellegrini Henri
ARO S.A.
Shaw Clifford C.
LandOfFree
Method and apparatus for controlling welding current in resistan does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for controlling welding current in resistan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for controlling welding current in resistan will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-934520