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Experimental Study on Effect of TiN - Coating on a Cold Forging in Surface Characteristics  

Kim Hae Ji (경상대학교 기계공학과 대학원)
Lee Sang Wook (경상대학교 기계공학과 대학원)
Kang Sang Myoung (경상대학교 기계공학과 대학원)
Joun Byung Yun (경상대 수송기계부품기술혁신센터)
Joun Man Soo (경상대학교 기계항공공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.22, no.1, 2005 , pp. 47-52 More about this Journal
Abstract
In this paper, the effect of TiN-coating on product quality such as dimensional accuracy and surface roughness is experimentally investigated. A punch of SKD11 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 lift.
Keywords
Punch; TiN-coating; Automotive bearing shaft; Tool life; Surface roughness;
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