WELDING WIRE FEEDER AND LASER ARC HYBRID WELDING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide a welding wire feeder and a laser arc hybrid welding apparatus, wherein welding quality can be improved by forming a stable arc in laser arc hybrid welding.

SOLUTION: The welding wire feeder 20 feeds a welding wire M to a welding torch 11 by a delivery roller 25. The feeder has a pressurizing means 26 for pressurizing the delivery roller 25 toward the welding wire M and is configured so as to adjust the feeding speed of the welding wire M by controlling the thrust of the pressurizing means 26.

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