Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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An Algorithm for Generating an Optimal Laser-Torch Path to Cut Multiple Parts with Their Own Set of Sub-Parts Inside

2차부재가 포함된 다수의 1차부재를 가공하기 위한 레이저 토치의 절단경로 최적화 알고리즘

  • 권기범 (계명대학교 산업공학과) ;
  • 이문규 (계명대학교 산업시스템공학과)
  • Published : 2005.09.01
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Abstract

A hybrid genetic algorithm is proposed for the problem of generating laser torch paths to cut a stock plate nested with free-formed parts each having a set of sub-parts. In the problem, the total unproductive travel distance of the torch is minimized. The problem is shown to be formulated as a special case of the standard travelling salesman problem. The hybrid genetic algorithm for solving the problem is hierarchically structured: First, it uses a genetic algorithm to find the cutting path f3r the parts and then, based on the obtained cutting path, sequence of sub-parts and their piercing locations are optimally determined by using a combined genetic and heuristic algorithms. This process is repeated until any progress in the total unproductive travel distance is not achieved. Computational results are provided to illustrate the validity of the proposed algorithm.

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References

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