• 제목/요약/키워드: 고속도공구강

검색결과 39건 처리시간 0.042초

분말고속도공구강과 고속도공구강의 펀치 수명 비교 (Comparison of punch life of powder high speed tool steel and high speed tool steel)

  • 이우람;이춘규
    • Design & Manufacturing
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    • 제16권1호
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    • pp.9-14
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    • 2022

  • A lot of research is being done on metal materials to improve the lifespan of molded parts. As a result, excellent mold materials have been developed that withstand high hardness at high temperatures and frictional heat generated from high-speed cutting. In this study, the press mold life of powder high-speed tool steel and general high-speed tool steel was compared. Powdered high-speed steel is composed of alloying elements such as tungsten, maldividene, cobalt, chromium, and vanadium in steel, which improves wear resistance compared to high-hardness and high-speed tool steels. The mold parts of both steel types were manufactured in the same way from heat treatment to machining, and the powder high-speed tool steel was 66HRC and the high-speed tool steel was 61HRC. As a result of the experiment, it was observed that the number of punching of powder high-speed tool steel was improved by 40-50%, and powder high-speed tool steel had fewer impurities, uniform texture, and excellent surface structure. It has a microscopic structure.

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