Earticle

초록

영어

In this study, the fatigue properties of press die steel, such as SKD11, and three high-durability die steel for the cold forming of ultra-high-strength steel sheets are evaluated. Specimens for fatigue, tensile, and hardness tests are manufactured through the heat treatment recommended by steelmakers and ultra-high precision processing. The general mechanical properties and fatigue properties are derived from hardness, tensile, and fatigue tests for four die steel. The tensile and fatigue properties of die steel derived through the tests are compared and analyzed. In particular, the correlation between the fatigue limit and the general mechanical properties such as tensile strength and elongation is analyzed, which allows relational expressions to be obtained through regression analysis. Finally, the study confirms that applying high-durability die steel is necessary for improving the die life in the manufacturing of press dies for ultra-high-strength steel sheets.

목차

ABSTRACT
1, 서론
2. 고내구 금형강의 경도 및 인장시험
2.1 고내구 금형강의 선정
2.2 경도시험
2.3 인장시험
3. 고내구 금형강의 피로특성 평가
3.1 피로시험 조건
3.2 피로시험 결과
3.3 기계적특성과 피로특성간의 관계 분석
4. 결론
References

키워드

저자

• 김현우 [ Hyun-Woo Kim | Korea Institute of Industrial Technology ]
• 김기풍 [ Kee-Poong Kim | Korea Institute of Industrial Technology, Principal Researcher ] Corresponding Author

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620