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김태헌(T.H.KIM),김하수(H.S.KIM),한승룡(S.Y.HAN),강희용(H.Y.KANG),양성모(S.M.YANG) 한국자동차공학회 1994 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
In general rear axle for automobiles. which is divided into velocity or power type ratio has been made use of in the same type of engine and T/M.<br/> In the case of either the development of a new automobile or the appropriate alteration of ratio for a new power performance, the precisive estimation through tests of the stability and reliability of rear axle located in the last section of power transmission has been accompanied by the waste of a lot of time and money.<br/> Before this wasteful experimental confirmation a data base can be made with the use of conventional design spec and data, then by the use of which a simulation can be carried out with the variation of design parameters and consequently the results can be applied to the design of a new rear axle.<br/>
와전류법을 이용한 강의 표면경화층 깊이의 비파괴적 측정
한승룡,이계완,박은수 한국비파괴검사학회 1991 한국비파괴검사학회지 Vol.11 No.1
The relationship between eddy current response and case hardening depth has been studied on SM40C(KS D-3752) and SCM440(KS D-3711) steels which were surface hardened by high frequency induction hardening. The results obtained in this study were as follows ; 1) Case hardening depth was successfully measured by observing the eddy current impedance changes of each steel. The impedance decreased linearly with increasing case hardening depth. 2) For large impedance gradient between the hardened surface and core metal, the eddy current response was more sensitive to case hardening depth than for low impedance gradient.