HELLO I AM A NEW PERSON OF WELDING RELATED FIELD .SOMETHINGS I CONT UNDERSTAND .SO I HAVE FOLLOWING QUESTIONS PLEASE GUIDE ME
WHAT IS THE MEANING OF HOT PASS ?
THEIR IS SMALL AMOUNT OF HEAT ONLY IS THEIR IN LARGE DIAMETER PIPES AFTER COMPLETION OF THE ROOT PASS THEN HOW THE SECOND PASS IS CALLED HOT PASS?
WHAT IS THE REACTION OF HOT PASS IN GTAW ?
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