Die for processing metal material and method for manufacturing same

• Main Authors: HU YAWEI, ZHANG XIAOQIAO, ZHU FUSHENG
• Format: Patent
• Language: Chinese; English
• Published: 26.01.2024
• Subjects: CASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; WORKING METALLIC POWDER

The invention discloses a mold for metal material machining and a manufacturing method thereof. The manufacturing method comprises the following steps that a mixture of a hard phase and a metal matrix is pressed and sintered into a prefabricated part in a preset shape through the powder metallurgy technology; polishing the surface of the prefabricated part; performing heat treatment on the surface of the polished prefabricated part to form a modified layer with a fine grain martensite structure on the surface of the prefabricated part; forming a surface coating on the modified layer by adopting a vapor deposition method; and performing low-temperature tempering treatment on the prefabricated part with the surface coating to obtain the mold. According to the mold for metal material machining and the manufacturing method of the mold, on the basis that the strength, toughness and abrasion resistance of the mold are guaranteed, the adhesion resistance, smoothness and thermal fatigue resistance of the mold are eff