Wire rod 소재 표면 인산염 처리 조건에 따른 반복 마찰계수 및 금형 수명과의 상관관계 분석
Analysis of the Correlation Between the Repeated Friction Coefficient and the Die Life According to the Phosphating Conditions of the wire Rod Material Surface
Phosphate coating is applied to the surface of the round bar material used in the multi-stage cold forging process for the purpose of lubrication. The film characteristics are determined according to the conditions of the phosphate film treatment process. In this study, the film properties according to the phosphate treatment conditions were defined as the coefficient of repeated friction and quantitative analysis was performed. Different friction behaviors were exhibited depending on the film properties, suggesting that optimization of the phosphate film treatment conditions is possible based on this. Finally, as a practical example, friction behavior according to the film characteristics was applied to the automotive engine bolt forming process. As a final conclusion, the need for linkage analysis with phosphating conditions for optimizing the forging process was raised. In addition, it can be seen that damage to the phosphate film should be considered in the process of predicting the limiting life of the die.
목차
ABSTRACT 1. 서론 2. 반복마찰 시험소재의 인산염 피막 처리 3. 반복마찰시험 4. 자동차 엔진볼트 성형해석 적용 및 금형수명 고찰 5. 결론 후기 References
키워드
선재인산염 처리다단냉간단조반복마찰계수금형수명Wire rod(선재)Phosphate treatmentMulti-stage cold forgingRepeted friction coefficientDie life
저자
서영호 [ Young-Ho Seo | Korea Institute of Industrial Technology, Senior Researcher ]
Corresponding author