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Cutting Power Based Feedrate Optimization for High-Efficient Machining

고능률 가공을 위한 절삭 동력 기반의 이송 속도 최적화

  • 조재완 (한국항공대학교 대학원 항공우주 및 기계공학부) ;
  • 김석일 (한국항공대학교 항공우주 및 기계공학부)
  • Published : 2005.02.01

Abstract

Feedrate is one of the factors that have the significant effects on the productivity, qualify and tool life in the cutting mechanism as well as cutting velocity, depth of cut and width of cut. In this study, in order to realize the high-efficient machining, a new feedrate optimization method is proposed based on the concept that the optimum feedrate can be derived from the allowable cutting power since the cutting power can be predicted from the cutting parameters as feedrate, depth of cut, width of cut, chip thickness, engagement angle, rake angle, specific cutting force and so on. Tool paths are extracted from the original NC program via the reverse post-processing process and converted into the infinitesimal tool paths via the interpolation process. And the novel NC program is reconstructed by optimizing the feedrate of infinitesimal tool paths. Especially, the fast feedrate optimization is realized by using the Boolean operation based on the Goldfeather CSG rendering algorithm, and the simulation results reveal the availability of the proposed optimization method dramatically reducing the cutting time and/or the optimization time. As a result, the proposed optimization method will go far toward improving the productivity and qualify.

Keywords

High-Efficient Machining;Cutting Power;Feedrate;Numerical Control;Optimization

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