퍼지 논리 알고리즘에 의한 사출제품의 미성형 해결

Trouble Shooting of Short Shot in Injection Molding By Using Fuzzy Logic Algorithm

  • Kang, Seong-Nam (Dept. of Mechanical Eng., Korea University of Technology and Education) ;
  • Huh, Yong-Jeong (School of Mechatronics Eng., Korea University of Technology and Education) ;
  • Cho, Hyun-Chan (School of Information Technology, Korea University of Technology and Education)
  • 발행 : 2001.12.01

초록

Short shot is a molded part that is incomplete since insufficient material was injected into the mold. Remedial actions to solve short shot can be done by injection molding experts based on their empirical knowledge. Modifying mold and part, changing resin to less viscous one, and adjusting process conditions are general remedies. Experts of injection molding might try to adjust process conditions such as mold temperature, melt temperature, injection time based on their empirical knowledge as the first remedy because adjustment of process conditions is the most economic way in time and cost. However it is difficult to find appropriate process conditions as they are highly coupled and there are so many elements to be considered. In this paper, a fuzzy logic algorithm has been proposed to find an appropriate mold temperature. With the percentage of the insufficient Quantity of an injection molded part, an appropriate mold temperature can be obtained by the fuzzy logic algorithm.

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