Journal of Korea Foundry Society (한국주조공학회지)

Korea Foundry Society (한국주조공학회)
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Establishment of Design Criteria for Slot Shape Considering Castability of Aluminum Diecasting Process for Large Industrial Motor Rotor

대형 산업용 전동기 회전자용 알루미늄 다이캐스팅의 주조성을 고려한 슬롯 형상 설계 기준 정립

  • Lee, Sung-Mo (Material Research Department, Industrial Technology Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Kim, Deok-Su (Material Research Department, Industrial Technology Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Park, Tae-Dong (Material Research Department, Industrial Technology Institute, Hyundai Heavy Industries Co., Ltd.) ;
  • Yoon, Young-Cheol (Material Research Department, Industrial Technology Institute, Hyundai Heavy Industries Co., Ltd.)
  • 이성모 (현대중공업 생산기술연구소 재료연구실) ;
  • 김덕수 (현대중공업 생산기술연구소 재료연구실) ;
  • 박태동 (현대중공업 생산기술연구소 재료연구실) ;
  • 윤영철 (현대중공업 생산기술연구소 재료연구실)
  • Received : 2015.09.07
  • Accepted : 2015.12.23
  • Published : 2016.02.29
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Abstract

Numerical analysis has been performed to evaluate effect of the shape variables such as core length, slot width and slot length on misrun in aluminum die casting process for motor rotor. The predictive method for misrun in diecasting process was established by comparing the result of numerical analysis and an actual motor rotor. Solidification modulus was introduced to predict quantitatively the castability of aluminum diecasting process for motor rotor. It was found that there are minimum critical solidification modulus and slot width to prevent misrun according to core length through diecasting limit diagram proposed using the predictive method. The critical solidification modulus and slot width increase as core length increases to prevent misrun of aluminum motor rotor in diecasting process. Based on the results, the design criteria of slot shape to prevent misrun of aluminum motor rotor with various core length were established.

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