Transactions of the Korean Society of Machine Tool Engineers (한국공작기계학회논문집)

The Korean Society of Manufacturing Technology Engineers (한국생산제조학회)
권호 표지

Machinability Evaluation of CBN Ball End Milling in Die & Mold Steels with High Hardness

고경도 금형강의 CBN 볼 엔드밀 가공에서 가공성 평가

  • 김홍규 (부산대학교 대학원 지능기계공학과) ;
  • 심재형 (부산대학교 대학원 지능기계공학과) ;
  • 이종찬 (금오공과대학교 기계공학부)
  • Published : 2007.08.15
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Abstract

Generally, the machinability of materials that have a good mechanical properties is poor. The material having a high strength, high toughness in high temperature and wear resistance, it is difficult to remove a chip from workpiece. STD11 and NAK80 are kinds of these materials and these materials can be used in many industrial fields. But it is limited in use because of high cost and poor machinability. In this experimental study, the cutting of STD11 and NAK80 were used to decide the machinability and the tool shape of CBN ball end mill. From the results, the CBN ball end mill is verified that the estimated cutting edge shape of rake angle 30 degree has consistent effect on the tool wear and cutting force.

Keywords

References

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