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Resistance spot welding control based on the temperature measurement

2013; Maney Publishing; Volume: 18; Issue: 7 Linguagem: Inglês

10.1179/1362171813y.0000000131

1743-2936

Primož Podržaj, Samo Simončič,

Non-Destructive Testing Techniques

In this paper a novel approach for temperature measurement during resistance spot welding is presented. The temperature is measured by two thermocouples mounted at the ends of both the electrode tips. The authors chose to mount them there because it was expected that it would be possible to measure the temperature at this point using a digital camera in the near future. The research was, therefore, motivated to obtain various pieces of information about the welding process from the measured temperature profiles. The measured temperature profiles showed a good correlation with the weld strength. Other phenomena, such as expulsion and electrode wear, can also be related to a temperature profile.