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자동차 부품 정밀가공면의 소성스트레인 측정을 위한 새로운 기법의 개발
김태영(T. Y. Kim),반야풍(Y. Iino),문상돈(S. D. Mun) 한국자동차공학회 1996 한국자동차공학회 춘 추계 학술대회 논문집 Vol.1996 No.6_2
Metal cutting leaves a plastically deformed layer in the precision machined surface in motor parts, such as torsion beam, rear axle and hole of engin piston. This residual phenomenon affects in various forms the physical properties of machined components such as the fatigue strength. the dimensional instability, microcracks and the stress corrosion cracking. There is an alternative way to determine the residual strain in plastically deformed materials by measuring the plastically deformed layer after a subsequent recrystallization process.<br/> The purpose of this investigation is to explore a new technique for measuring plastic strain in machining applications, and in particular, to find the effect of cutting parameters, on the plastic strains in motor parts.<br/>