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자동차 EPB Spindle 부품 제조비용 저감을 위한 다단냉간 단조공정 최적화 Multi-cold Forging Process Optimization of EPB Spindle to Reduce Manufacturing Cost

서영호
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한국기계기술학회지 (韓國機械技術學會誌)
제22권 제3호 (2020.06)
pp.443-449
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

Forged part made of Cold heading quality wire materials are used for automotive brake systems. The cost reduction of forged products is a major issue because of the strict shape change. A series of studies were conducted to minimize the cost of EPB spindle process among brake parts. In order to reduce the material cost, heat treatment-abbreviated material was applied and the formability on the processes was verified by the ductile fracture theory. In addition, the causes of shape fixation and die life degradation were analyzed using the numerical simulation. The process cost has been minimized by re-designing process, changing the product shape, and the die material.

키워드
CHQ wireCHQ 선재EPB spindleEPB 스핀들Multistage forging다단단조Ductile fracture연성파괴Manufacturing cost제조비용
목차
ABSTRACT
1. 서 론
2. EPB Spindle
3. 저원가 소재 검토
    3.1 SCM435 vs. SAE10B35
    3.2 연성파괴기준 도출
    3.3 냉간단조 성형성 평가
4. 다단냉간단조 공정 최적화
    4.1 헤드부 성형공정 개선
    4.2 토글부 성형공정 개선
5. 결 론
References
저자
  • 서영호(Korea Institute of Industrial Technology, Senior Researcher) | Young-Ho Seo Corresponding Author