열간 금형강의 기계적 성질에 미치는 진공열처리와 염욕열처리 조건의 영향
Effect of Vacuum Heat Treatment and Salt Bath Heat Treatment Conditions on Mechanical Properties of Hot Work Die Steel
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Salt bath heat treatment is usually used but recently vacuum heat treatment is increased for the heattreatment of hot work die steels. The differences in two heat treatment processes were compared bytesting the mechanical properties of heat treated products. With two different features of processes,mechanical properties such as hardness, tensile strength and impact strength of products show verydifferent results. “In this study, salt bath heat treated products” showed higher tensile strength and impactstrength than vacuum heat treated products but hardness was not much different. These lower mechanicalproperties of vacuum heat treated products are due to differences in heating and quenching process.
Abstract
Salt bath heat treatment is usually used but recently vacuum heat treatment is increased for the heattreatment of hot work die steels. The differences in two heat treatment processes were compared bytesting the mechanical properties of heat treated products. With two different features of processes,mechanical properties such as hardness, tensile strength and impact strength of products show verydifferent results. “In this study, salt bath heat treated products” showed higher tensile strength and impactstrength than vacuum heat treated products but hardness was not much different. These lower mechanicalproperties of vacuum heat treated products are due to differences in heating and quenching process.
참고문헌 (4)
- G. A. Roberts, "Tool Steels", pp.684~686 (1962), ASTM
- John Y. Riede, "Tool and Die failures source Book", pp.29~30 (1982), ASM
- B. Bryson, "Heat Treatment, Selection, and Application of Tool steels", pp.63~ (1997), Modern Machine Shop Publications
- P. Payson, "The Metallurgy of Tool Steels", pp.205~209 (1962), Wiley & Sons