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마이크로 스크류 성형해석을 위한 소재의 유동응력 모델 고찰
송전한(J. H. Song),이근안(G. A. Lee),이혜진(H. J. Lee),이낙규(N. K. Lee),박기동(K. D. Park),이형욱(H. W. Lee) 한국소성가공학회 2010 한국소성가공학회 학술대회 논문집 Vol.2010 No.10
This paper deals with the typical evaluation of hardening models of ANSI410 stainless steels for the thread rolling simulation of micro-screws. Comparison tests of the material were firstly carried out in order to obtain the stress-strain curves. The curves were then interpolated with Ludwick equation and Hockett-Sherby equation. Interpolation results indicates that Hockett-Sherby model provide relatively well description for the hardening behavior of ANSI 410 steel. Both simulations and experiments were finally conducted to verity the hardening equation. The results fully demonstrate that Hockett-Sherby model is more suitable for the FE simulation of thread rolling process for ANSI 410 micro-screws.