Electric heating – Metal heating – For bonding with pressure
Patent
1983-04-01
1984-09-18
Shaw, C. C.
Electric heating
Metal heating
For bonding with pressure
219109, 219110, B23K 1130
Patent
active
044726201
ABSTRACT:
An instrumented spot welding electrode significantly improves the weld quality available from production resistance spot welding machines by providing real time measurements of key multivariable resistance welding parameters. The real time data provided may be used as inputs to adaptively control welding machines and dynamically adjust welding system operation responsive to the sensed variables. A number of sensors are positioned within a cavity specially formed into a water cooled electrode tip to obtain the desired measurements while being protected against physical damage. The sensors are advantageously placed in good thermal and electrical contact with a plug element which bears directly on the workpieces being welded to enhance the accuracy of the sensed variables. This specially configured and instrumented sensor cavity is ideally suited for use with all end types of electrodes including spherical, truncated, offset, flat and the like.
REFERENCES:
patent: 2104749 (1938-01-01), Jones
patent: 2200887 (1940-05-01), Lockwood
patent: 2317681 (1943-04-01), Fletcher
patent: 2354190 (1944-07-01), Benkert
patent: 2363536 (1944-11-01), Leathers
patent: 2370009 (1945-02-01), Clark et al.
patent: 2433963 (1948-01-01), Tarbox et al.
patent: 3335258 (1967-08-01), Barnhart et al.
Campbell Donald R.
Davis Jr. James C.
General Electric Company
Shaw C. C.
Webb II Paul R.
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