疲勞限度에 영향을 미치는 表面거칠기의 정량적 평가

• 영문명: Quantitative Estimation of Surface Roughness Affecting the Fatigue Limit
• 발행기관: 강원대학교 산업기술연구소
• 저자명: 김진학(Kim Jin Hak) 김민건(Kim Min Gun)
• 간행물 정보: 『산업기술연구』vol.17, 5~10쪽, 전체 6쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 1997.09.30

영문 초록

Fatigue tests were performed to investigate how much vary the fatigue limit under the different surface conditions on Carbon Steel(SM55C). Four types of specimen which have different surface roughness each other, Series A by turning, Series B by grinding, Series C by polishing and Series D by roller finishing showed the fatigue limit of 265, 320, 335 and 365MPa, respectively. Series D show 36% higher than Series A, which is caused by compressive residential stress on the surface. Therefore, roller finishing machining is helpful not only increase the fatigue limit but also improve the surface roughness. Moreover, to predict the fatigue limit under the conditions of knowing surface roughness and hardness of specimen, parameter method is very useful.

목차

ABSTRACT

1. 서론

2. 표면가공정도와 피로한도와의 관계

3. 실험방법

4. 결과 및 고찰

5. 결론

참고문헌