The Measurement and Monitoring of Resistance Spot Welds Using Infrared Thermography

Bruce Brown; Edmund Bangs

doi:10.1117/12.950887

28 March 1986 The Measurement and Monitoring of Resistance Spot Welds Using Infrared Thermography

Bruce Brown, Edmund Bangs

Proceedings Volume 0581, Thermosense VIII: Thermal Infrared Sensing for Diagnostics and Control; (1986) https://doi.org/10.1117/12.950887
Event: 1985 Cambridge Symposium, 1985, Cambridge, United States

Abstract

The ability to monitor the spot welding process and provide a real time inspection is of interest to the automotive, aircraft, and aircraft turbine industries. A series of experiments was performed using the infrared radiometer during the welding operation when welding coated and uncoated automotive gage steels. It has been determined that the isotherm radiated at the electrode/base material surface contains apometric information that can be used in the detection of the weld nugget and its quality. Weld nugget measurement and tensile shear tests results show good correlation between isotherm geometry, weld joint strength, and weld nugget size.

Citation Download Citation

Bruce Brown and Edmund Bangs "The Measurement and Monitoring of Resistance Spot Welds Using Infrared Thermography", Proc. SPIE 0581, Thermosense VIII: Thermal Infrared Sensing for Diagnostics and Control, (28 March 1986); https://doi.org/10.1117/12.950887

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