Design & Manufacturing

Korean Society of Die & Mold Engineering (한국금형공학회)
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Prediction of Core Shift using Injection Molding CAE program

사출성형 CAE 프로그램을 이용한 코어 휨의 예측

  • Moon, Jeong-Yeon (School of Mechanical Engineering, Pukyong National University) ;
  • Kwak, Min-Hyuk (School of Mechanical Engineering, Pukyong National University) ;
  • Park, Tae-Won (School of Computer Added Mold & Die Engineering, Korea Polytechnic VII College) ;
  • Jeong, Yeong-Deug (School of Mechanical Engineering, Pukyong National University)
  • 문정연 (부경대학교 기계공학부 기계공학전공) ;
  • 곽민혁 (부경대학교 기계공학부 기계공학전공) ;
  • 박태원 (한국폴리텍 VII대학) ;
  • 정영득 (부경대학교 기계공학부)
  • Accepted : 2014.08.27
  • Published : 2014.12.01
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Abstract

The Core-Shift is often generated on injection mold which have thin and long core. And Core-Shift brings out problems for thickness variation and product ejecting process. In this study, analysis of Core-Shift was performed according to change of materials of core(steel P-20, Be-Cu) and various polymers(PP, PC) by using MoldFolw MPI 6.1 which is commercial injection molding analysis program. As the results of analysis, the magnitude of Core-Shift was increased as being use polymer had lower fluidity and lower rigidity core. In the future, we will study the relationship between amount of Core-Shift and ejecting force.

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