期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：2
页码：1984
DOI：10.15680/IJIRSET.2015.0502147
出版社：S&S Publications
摘要：D3 steel is widely used for die components part. This part is mostly manufactured by turning operation.However, turning parameters could be affected by roundness and hardness of work pieces. It is used in the packaging,textiles, chemicals, leather, construction and heavy machinery manufacturing sectors. Particularly, in the manufactureof machine parts like gears, eccentric cam cylindrical of which is crucial, it has superseded many metals because it isimportant to be able to predict the geometrical tolerance to get more qualified materials. The aim of this project is topredict the exact roundness of internal bore in D3 material after the machining process. The purpose of this project is tostudy the factors, which are affecting the roundness and hardness and surface roughness of High carbon steel during theCNC machining process. Through this investigation it was identified that un coated drill bits create higher surfaceroughness than coated drill bits. Hardness properties values in both drill bits were more are less same. Whilemachining, the hardness changes both the drill bits give the equal changes. Through the CMM inspection the coateddrill bits were less roundness error compared than without coated drill bits. Finally optimal control factor were foundfor CrAlN drill bit was for surface Roughness-A3(Speed -900)B1(Feed -0.03)C2(Peck Increment 1.0) and minimumhardness achieved -A1(Speed-600)B3(Feed 0.09)C2(Peck Increment 1.0) and then minimum roundness error wereobtained- A3(Speed-900)B2(Feed 0.09)C1(Peck Increment 0.5).
关键词：D3 steel; roundness; CNC machining process; CMM inspection and CrAlN drill bit
