Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

Manufacturing Process Design of Aluminum Alloy Bolt

알루미늄 합금 볼트의 제조 공정 설계

  • 김지환 (고려대학교 대학원 기계공학과) ;
  • 채수원 (고려대학교 기계공학부) ;
  • 한승상 (영신금속공업 주식회사) ;
  • 손요헌 (영신금속공업 주식회사)
  • Received : 2009.09.17
  • Accepted : 2010.03.18
  • Published : 2010.05.01
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Abstract

The use of aluminum alloy parts in the automotive industry has been increasing recently due to its low weight compared with steel to improve fuel efficiency. Companies in the auto parts' manufacturing sector are expected to meet the government's strict environmental regulations. In this study, manufacturing process of aluminum alloy bolt has been designed from forming to heat treatment. Bolt forming process is composed of cold forging for body and rolling for thread. In this study only cold forging process is considered by employing the finite element method. In the cold forging process, preform shape was designed and damage value was considered for die design. Two steps of forging process has been developed by the simulation and a prototype was manugactured accordingly. As a final process, solution heat treatment and aging process was employed. A final prototype was found to meet the required specifications of tensile strength and dimension.

Keywords

References

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