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허선철(S. C. Huh),전영흥(Y. H. Jun),정한식(H. S. Chung),정효민(H. M. Chung),심규진(K. J. Shim),이정열(J. Y. Lee) 한국동력기계공학회 2004 한국동력기계공학회 학술대회 논문집 Vol.- No.-
The refrigerator cylinder block be made of cast material. But, It is necessary to use engineering plastic material instead of cast material in compressor cylinder block manufacture in order to light weight and reduction of manufacture cast. In this study, I would like to offer basic design data of plastic material alteration on the basic of structure analysis of current product using CATIA Ver.5.9
송태훈(T. H. Song),이현준(H. J. Lee),Jiang Jun,허선철(S. C. Huh),박원조(W. J. Park) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.10
It is known that the high-frequency induction hardening treatment is effective as surface hardening. the strength of this method is that make control the surface layer depth. In this study, carbon steel (SMS3C) was induction-hardened and adjusted to have three different surface hardness levels through the tempering process. The effect of induction hardening and tempering process were investigated as wear test and facture toughness test. At wear test, zirconia (ZrO2) ball was used as a relative wear material and ball-on-disk test was applied for searching wear properties. The results showed that friction coefficient and wear rate decreased with increasing surface hardness in the 50N. But the other condition of load were shown differently. and at accompanied the fracture toughness test, the results showed that as the hardening layer is as deeper K<SUB>IC</SUB> increased.