... 1. INTRODUCTIONThe laser welding machine YMW-80 is designed for jewelry welding,hole filling,eyelet removing,crack filling,parts joining,etcThe ... comparison to the traditional welding method.The system is suitable for wedling of general metals(e.g.,aluminum alloy)and ... silver).Moreover,it is also used in component joint welding for precise metal parts,batteries,glass frames,clocks,watches, and ...