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롤 다이 성형공정에서 클리어런스에 따른 허브 클러치의 성형성평가
고대훈(D. H. Ko),이상곤(S. G. Lee),권용남(Y. N. Kwon),김상우(S. W. Kim),차달준(D. J. Cha),이현석(H. S. Lee),김병민(B. M . Kim),고대철(D. C. Ko) 한국소성가공학회 2011 한국소성가공학회 학술대회 논문집 Vol.2011 No.5
Roll die forming(RDF) process is a new manufacturing technology for producing tooth parts such as drum clutch and hub clutch in automotive transmission. In RDF process, the material is deformed by the roll installed in the die set. The quantitative benefits of RDF process are excellent productivity, low forming load, and improved dimensional accuracy. In this study, RDF process is applied to manufacture a hub clutch with tooth shape part. Especially, dimensional accuracy of final product was quite affected by die clearance between roll and punch. In this study, FE-analysis was performed in order to investigate the deformation behavior of material and dimension accuracy of the final product. Based on the result of FE-analysis, design of experiment(DOE) was carried out to determine the optimal die clearance for improvement of dimensional accuracy.
롤 다이 포밍 공법에 의한 차량변속기 허브 클러치의 성형공정해석
고대훈(D. H. Ko),고대철(D. C. Ko),권용남(Y. N. Kwon),김상우(S. W. Kim),이현석(H. S. Lee),박은수(E. S. Park),김병민(B.M.Kim) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.5
The roll die forming(RDF) process is new manufacturing technique for tooth parts such as drum clutch, hub clutch in vehicle transmission. The characteristic of RDF process is to deform the material using the installed roll in the die. The qualitative benefits obtained from RDF process are the increased productivity, reduced press load and increased dimension quality. In this paper, RDF process is applied to produce the hub clutch with tooth shape part. FE-simulation is conducted to confirm the metal flow according to process. Finally, the hub clutch as test product is manufactured by RDF process and comparison of dimension between test product and FE-simulation is good agreement.