Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
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Effect of Coating and Machining Parameters on Surface Finish in Dry Drilling of Aluminium 6061

Al 6061의 드릴가공에서 공구코팅과 공정변수가 표면정도에 미치는 영향

  • Choi, Man Sung (School of Mechatronics Engineering, Korea University of Technology and Education)
  • 최만성 (한국기술교육대학교 메카트로닉스공학부)
  • Received : 2015.06.03
  • Accepted : 2015.06.22
  • Published : 2015.06.30
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Abstract

In this paper, the performance of uncoated- and Titanium nitride aluminium TiAlN-PVD coated- carbide twist drills were investigated when drilling aluminium alloy, Al 6061. This research focuses on the optimization of drilling parameters using the Taguchi technique to obtain minimum surface roughness and thrust force. A number of drilling experiments were conducted using the L9 orthogonal array on a CNC vertical machining center. The experiments were performed on Al 6061 material l blocks using uncoated and coated HSS twist drills under dry cutting conditions. Analysis of variance(ANOVA) was employed to determine the most significant control factors. The main objective is to find the important factors and combination of factors influence the machining process to achieve low surface roughness and low cutting thrust force. From the analysis of the Taguchi method indicates that among the all-significant parameters, feed rate are more significant influence on surface roughness and cutting thrust than spindle speed.

Keywords

References

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