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[국내논문] 초정밀 Gear 미세 모듀율을 가진 2 Cavity 파인 블랭킹 시트 리클라이너 금형 제조기술에 관한 연구
Study on the Manufacturing Technology of 2-Cavity Fine Blanking Seat Recliner Die with Minute Module of Accurate Gear 원문보기

한국기계가공학회지 = Journal of the Korean Society of Manufacturing Process Engineers, v.15 no.2, 2016년, pp.22 - 30  

박동환 (경북하이브리드부품연구원) ,  권혁홍 (대진대학교 컴퓨터응용기계설계공학과)

Abstract AI-Helper 아이콘AI-Helper

It is very important to obtain the net shape of the product to maximize the shear cutting surface of fine blanking. In this paper, the fine blanking die was manufactured to achieve part characteristics, such as flatness and a fully sheared surface. The V-ring in the fine blanking die was designed to...

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제안 방법

  • 14 shows measurements of a shear surface. Since the 2 Cavity fine blanking process involved measurement reduction of the gear part, the test was repeated to examine the range of contraction. The gear punch was then re-processed in reflection of the range.
  • Besides, a recliner is closely linked to vehicle stability, fine blanking produces that secure accurate processing are commonly utilized. This study aims to develop 2 cavity fine blanking die technology in application of a seat recliner, which is a automotive backrest angle adjuster, to an accurate gear minute module.
  • This study is to develop 2 Cavity fine blanking die technology in application of an accurate gear for parts of a recliner, a automotive backrest angle adjustor. In application of the forming analysis technology applied to the major processes including initial die design and production, 2 Cavity fine blanking die technology was successfully developed.

대상 데이터

  • SKH51 was chosen for die insert parts. For other parts, alloy tool steel STD11 was chosen. Fig.
  • Fine blanking products are widely used for functional parts of vehicles and also for such areas as common mechanical elements where both product precision and high quality of the shear surface are required. In this study, designed and produced is 2 Cavity fine blanking die that can make two products simultaneously through a single press process of automotive seat recliner parts. Fig.
  • 4 ton, which secures at least 30% of safety ratio. In this study, selected was a 700 ton fine blanking press.
  • As for fine blanking die materials, alloy steel CPMM4 materials were chosen for the main punch and gear punch in consideration of the high surface pressure applied to workpiece materials. SKH51 was chosen for die insert parts. For other parts, alloy tool steel STD11 was chosen.
  • The material used in the test was SCM415H as thick as 4mm, and the tension test specimens went through the wire cutting process in the direction of rolling. In the tension test, the speed of a cross head was kept constant by means of a universal material tester, and tension continued being applied up to the point of breaking.
  • To form a minute module gear of automotive seat recliner parts, a fine blanking die was designed as a type of progressive die. To design a optimal layout and minimize the use of materials, the width was set to 174mm and the pitch 105mm respectively. Fig.
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참고문헌 (9)

  1. Bahn, G. S., Suh, E. K., Lee, G. H. and Mo, C. K., "A Study on the Characteristics for the Blanking of Lead Frame with the Nickel Alloy42," Transactions of the Korean Society of Manufacturing Technology Engineers, Vol. 13, No. 6, pp. 87-93, 2004. 

  2. Han, K. T., "A Study on the Forming of Parts for Automobile using Fine Blanking Process," Journal of the Korean Society of Machine Tool Engineers, Vol. 8, No. 2, pp. 56-61, 1999. 

  3. Kim, J. D. and Kim, H. K., "A Study on the Change of Die Roll Size by the Shape of Die Chamfer in Fine Blanking Die for Automobile Door Latch," Journal of the Korea Academia-Industrial Cooperation Society, Vol. 12, No. 2, pp. 565-570, 2011. 

  4. Kim, J. D., "An Experimental Study on the Effect of V-ring Position and Die Chamfer Shape on the Die Roll Height in Fine Blanking Tool," Journal of the Korea Academia-Industrial Cooperation Society, Vol. 13, No. 5, pp. 2009-2014, 2012. 

  5. Lee, C. K. and Kim, Y C., "A Study on the share Surface Size Deformation of Fine Blanking Process," Journal of the Korea Academia-Industrial Cooperation Society, Vol. 14, No. 8, pp. 3650-3655, 2013. 

  6. Kwak, T. S., Kim, Y. J. and Bae, W. B., "Finite Element Analysis on Effect of Die Clearance on Shear Planes in Fine Blanking," Journal of Materials Processing Technology, Vol. 130, pp. 462-468. 2002. 

  7. Kim, G. T., "A Study on Edge Bridge Minimization of Fine Blanking Process," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 12, No. 4, pp. 108-113, 2013. 

  8. Park, D. H. and Kwon, H. H., "Development of the Compound Die Forming Technology United between Semi-Progressive and Transfer Die," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 14, No. 4, pp. 126-133, 2015. 

  9. Yoon, I. C., Ko, T. J., Lee, C., Kim, H. S. and Park, D. H., "Small Electrode Ring Forming by Multi-Forming Process," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 8, No. 3, pp. 38-45, 2009. 

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