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냉간단조 공정에서 TiN 코팅이 제품의 표면특성에 미치는 영향에 관한 실험적 연구
김해지(Hae Ji Kim),이상욱(Sang Wook Lee),강상명(Sang Myoung Kang),전병운(Byung Yun Joun),전만수(Man Soo Joun) Korean Society for Precision Engineering 2005 한국정밀공학회지 Vol.22 No.1
In this paper, the effect of TiN-coating on product quality such as dimensional accuracy and surface roughness is experimentally investigated. A punch of SKDll material in cold forging an automotive bearing shaft and its related process found in a cold forging company are selected as the test example. The effect of TiN-coating is revealed in a quantitative manner. It is to be noted that TiN-coating is effective in controlling the dimensional accuracy and surface roughness as well as in increasing tool life.