Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Development of Porthole Extrusion Die for Improving Welding Pressure in Welding Chamber by Using Numerical Analysis

수치해석을 이용한 접합실 내 접합압력 향상을 위한 포트홀 압출금형 개발

  • 이성윤 (한국생산기술연구원 극한가공기술그룹) ;
  • 이인규 (한국생산기술연구원 극한가공기술그룹) ;
  • 정명식 (한국생산기술연구원 극한가공기술그룹) ;
  • 고대철 (부산대학교 융합학부) ;
  • 김병민 (부산대학교 기계공학부) ;
  • 이상곤
  • Received : 2017.01.04
  • Accepted : 2017.02.15
  • Published : 2017.04.01
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Abstract

Porthole extrusion process is a very effective metal forming process to produce aluminum profiles with hollow sections. The structure of porthole extrusion die is very complex. In this process, the billet is divided by porthole bridge, and then the divided billet is welded in the welding chamber. The welding pressure in the welding chamber is very important. The higher welding pressure improves the quality of the aluminum profiles. Therefore, the objective of this study is to develop a new porthole extrusion die for improving the welding pressure in the welding chamber by using numerical analysis. The effectiveness of the new porthole extrusion die was verified by using numerical analysis. Through numerical analysis, the welding pressures in the welding chamber between the new porthole die and the conventional porthole die were compared with each other.

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References

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  1. Simulation Analysis of Porthole Die Extrusion Process and Die Structure Modifications for an Aluminum Profile with High Length–Width Ratio and Small Cavity vol.11, pp.9, 2018, https://doi.org/10.3390/ma11091517