Medium frequency spot welding involves pressing assembled workpieces between two cylindrical electrodes, using resistance heating to melt the base metal and form weld points. The welding process consists of:
Pre-pressing to ensure good contact between workpieces.
Applying electric current to create a fusion core and plastic ring at the welding spot.
Discontinuing the electric current and forging under pressure to allow the fusion core to cool and crystallize, forming a dense, void-free, and crack-free weld point.
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Post time: Mar-27-2024