Electric heating – Metal heating – For bonding with pressure
Patent
1980-05-19
1982-11-16
Shaw, C. C.
Electric heating
Metal heating
For bonding with pressure
219 912, 219109, 219119, B23K 1124
Patent
active
043596223
ABSTRACT:
A controller for a spot-welding machine compares the temperature evolution at a site at which a spot weld is being made to a standard thermal history stored in a digital read/write memory in controlling the welding current for the weld. Standard thermal histories can be generated and written into the memory as needed by an operator of the welding machine to take into account changes in operating conditions. The temperature evolution of the spot-welding operation is monitored by detecting radiant energy whose intensity provides a measure of a temperature of the weld. Phosphorescent radiation from a thermographic phosphor located in a welding tip of the welding machine and thermal infrared radiation are preferred for monitoring the temperature evolution of the spot-welding operation.
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Dostoomian Ashod S.
Richard Alan A.
Traub Alan C.
Vanzetti Riccardo
Shaw C. C.
Vanzetti Infrared & Computer Systems, Inc.
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