A METHOD OF MANUFACTURING COLD WORK TOOL STEEL WITH SUPERIOR TOUGHNESS AND WEAR RESISTANCE

摘要

The present invention relates to a method for manufacturing a variety of cold working tool steel, the purpose of which can significantly improve the toughness and wear resistance of the tool steel based on the study of the carbide formation behavior of Mo in the manufacturing process of the tool steel by the spray molding method In providing a method.;The present invention having such an object, in the method for producing a tool steel by spray molding, C _a V _b Cr _C Mo _X Fe as a basic composition, the content is 1.5≤a≤3.0, based on the weight% 8.0 ≤ b ≤ 12.0, 4.0 ≤ c ≤ 6.0, 1.6 ≤ x ≤ 10.0, and the rest was dissolved in an alloy to have a composition of Fe, and then the melt was obtained by gas spraying to obtain a bulk material, and the base material was hot worked. The technical gist of the manufacturing method of the tool steel which is excellent in the toughness and abrasion resistance comprised including the thing shall be made into the technical summary.