Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Determination of Gate Position Considering Robustness in Injection Mold Design

사출금형 설계에서 강건성을 고려한 게이트 위치의 결정

  • 박종천 (금오공과대학교 기계공학과) ;
  • 김경모 (금오공과대학교 산업공학부)
  • Received : 2017.07.12
  • Accepted : 2017.08.23
  • Published : 2017.10.31
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Abstract

In this paper, we propose a design procedure for determining the gate position robust to changes and inherent fluctuations in the process conditions during injection molding. To evaluate the robustness of the gate position, the signal-to-noise ratio is used, and noise conditions are implemented using orthogonal arrays, where the process variables are considered as noise factors and possible process fluctuations are set as the levels of the noise factors. To show the usefulness of the proposed robust design procedure, we apply it to a computer CPU baseplate. As a result, it is shown that a robust gate position can be determined that reduces the average warpage deflection by 2.4% and 1.7%, and the variance by 3.4% and 5.1%, compared to the two initial gate positions.

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References

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