Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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A Study on the Chip Control in Turning of Hardened Steel STD11

경화처리된 공구강 STD11의 선삭에서 침 처리성에 관한 연구

  • Noh, S.L. (Department of Mechanical Engineering, Inha University) ;
  • An, S.O. (Department of Mechanical Engineering, Inha University)
  • 노상래 (인하대학교 기계공학과) ;
  • 안상욱 (인하대학교 기계공학과)
  • Published : 1992.09.30
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Abstract

The chip controls are investigated experimentally for the purpose of estimating cutting ability of hardened steel. In this experiment, hardened STD11 steel ($HR_c$ 60) is turned with carbide tool M20 under various cutting conditions and with several tool shapes. The main results obtained are as follows : 1) Cutting conditions of cutting speed 45m/min. feed 0.09-0.13 rev. depth of cut 0.4-0.6 are recommended for the chip excluding. 2) In case that the feed becomes larger and a lead angle of cutting tool becomes smaller, the chip excluding becomes easier. 3) It is confirmed that frank wear and crator wear on the cutting tool appear severely from about 10 min. after cutting start and chip excluding get worse.

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