MANUFACTURE OF WIRE FOR GAS SHIELDED METAL ARC WELDING

摘要

PROBLEM TO BE SOLVED: To provide a manufacturing method of a wire for gas shielded metal arc welding which is free from any surface flaws or breakage of the wire during the drawing work, and extremely excellent in wire feedability even when a long conduit cable is bent for use during the welding. SOLUTION: In a manufacturing method of a wire for gas shielded metal arc welding, the wire in which the wire surface roughness Ra of the finish drawing process 0.20-80μm is die-drawn using the semi-solid grease lubricant containing one or more kinds of MoS2 or WS2 with the reduction of area of 3-10%, and the wire surface is cleaned with the mixture solution in which the mineral oil cleaning solution is contained by 30-70vol.% in the liquid lubricant in the final finish drawing. The quantity of one or more kinds of MoS2 or WS2 and the quantity of oil are preferably adjusted to 0.01-0.05g and 0.30-1.00g respectively for the wire of 10kg on the wire surface in the surface cleaning of the wire.