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Title: Development of a sensor-less methodology for monitoring quality of spot welding in real time
Authors: Wan, Li Xue
Keywords: DRNTU::Engineering::Manufacturing::Quality control
Issue Date: 2000
Abstract: Resistance spot welding is widely used for joining metal sheet. Although many attempts have been made to perform the quality assurance, none of the methods available today can provide a satisfactory quality monitoring capability for spot welding without significantly sacrificing productivity of this widely used joining process. This report presents a new method to monitor and diagnose a resistance welding process through measuring the variation of the input electrical impedance (Zin) of a welding system. The Zin is obtained by digitally processing the measured input voltage and current of a welding system.
Rights: Nanyang Technological University
Fulltext Permission: restricted
Fulltext Availability: With Fulltext
Appears in Collections:MAE Theses

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