Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Dynamic Model in Ball End Milling of Inclined Surface

볼 엔드밀 경사면 가공의 동적 모델

  • 김성윤 (기술신용보증기금 기술평가센터) ;
  • 김병희 (강원대학교 기계 메카트로닉스공학부) ;
  • 주종남 (서울대학교 기계항공공학부) ;
  • 이영수 (서울대학교 기계항공공학부)
  • Published : 2006.03.01
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Abstract

In this work a dynamic cutting force model in ball end milling of inclined surface is introduced. To represent the complex cutting geometry in ball end milling of inclined surface, workpiece is modeled with Z-map method and cutting edges are divided into finite cutting edge elements. As tool rotates and vibrates, a finite cutting edge element makes two triangular sub-patches. Using the number of nodes in workpiece which are in the interior of sub-patches, instant average uncut chip thickness is derived. Instant dynamic cutting forces are computed with the chip thickness and cutting coefficients. The deformation of cutting tool induced by cutting farces is also computed. With iterative computation of these procedures, a dynamic cutting force model is generated. The model is verified with several experiments.

Keywords

References

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