Abstract
Abstract In electronics parts of automotive applications, Ultrasonic Metal welding (USMW) is used to join similar or dissimilar metals of thin materials such as copper wires/sheets, joined by acoustic high frequency vibrations locally applied to workpieces being held together under pressure to create a solid-state weld. The application of high frequency vibratory energy comes under the Ultrasonic Welding. The main difficulty in the Ultrasonic welding is the low quality weld joints with reduced strength. It was overcome by the appropriate selection of weld parameters like Welding Pressure, vibration amplitude and weld Time (WT) in the USMW. In the present paper, Taguchi and Grey Relational Analysis (GRA) are employed for the selection of parameters for joining of Copper (Cu) to Cu of thickness 0.2 mm and also for optimum USMW process parameters.
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