한국생산제조학회지 (Journal of the Korean Society of Manufacturing Technology Engineers)

  • 제20권4호
  • /
  • Pages.419-426
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  • 2011
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  • 2508-5093(pISSN)
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  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
권호 표지

열처리 및 비 열처리 AISI4140강의 유동응력 물성치를 기초로 하는 해석적 가공 모델 연구

An analytical Machining models based on Flow Stress Properties for Non-Heat Treated and Heat Treated AISI 4140 Steel

  • 투고 : 2010.08.24
  • 심사 : 2011.05.03
  • 발행 : 2011.08.15
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초록

In this study, an experimental and theoretical program were carried out to determine the cutting forces and chip formation at different cutting speeds using a 0.4mm nose radius ceramic insert and -7 rake angle for non heat-treated AISI 4140 (27HRc) and heat-treated AISI 4140 (45 HRc) steel. The results obtained were compared to show the hardness differences between the materials. The secondary deformation zone thicknesses when comparing the two materials show different physical structure but similar size. These results were also discussed in light of the heat treatment and the effects it had on the machining characteristics of the material. In addition, the Oxley Machining Theory was used to predict the cutting forces for these materials and a comparison made. The predicted cutting performances were verified experimentally and showed good agreement with experimental data.

키워드

참고문헌

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