Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Mechanistic Analysis Modeling for the 3-D Chip Formation Process

3-D 칩생성과정의 역학적 해석 모델링

  • Kim, Gyeong-U (Dept.of Mechanical Engineering, Graduate School of Wonkwang University) ;
  • Kim, U-Sun (Dept.of Mechanical Engineering, Graduate School of Wonkwang University) ;
  • Kim, Dong-Hyeon (Dept.of Mechanical Engineering, Wonkwang University)
  • 김경우 (원광대학교 대학원 기계공학과) ;
  • 김우순 (원광대학교 대학원 기계공학과) ;
  • 김동현 (원광대학교 기계공학부)
  • Published : 2000.12.01
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Abstract

Once the chip has developed a mixed mode of side-curl and up-curl, it would generally curl to strike the tool flank. The development of the bending stresses and sheat in the chip would ultimately lead to chip failure. This paper approach this problem from a mechanics-based approach, by treating the chip as a 3-D elastic curved beam, and applying appropriate constraints and forces. The expressions for bending, shear and direct stresses are developed through an energy-based criterion. The location of the maximum stresses is also identified and explained for simulated test conditions.

Keywords

References

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  2. Cook N. H., Jhaveri P., and Nayak N., 'The Mechanism of Chip Curl and Its Importance in Metal Cutting,' Trans. ASME, pp. 374, 1963
  3. Spaans, 'The Fundamental of Three-dimensional Chip-curl, Chip Breaking and Chip Control,' Doctoral Thesis, TH Delft, 1971
  4. Zhang, J., 'Simulation and Experimental Validation of Chip Curl Development , Chip Deformation and Chip Breaking in 2-D Metal Machining,' M.S. Thesis, University of Kentucky, 1994
  5. 김동현, 박승근, 김 경우, '칩브레이커 형상변수에 의한 칩유동각 예측,' 한국공작기계학회지, 제9권, 제2호, pp. 96-101, 2000