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Optimal Design of flat rolling about Lead Wire for Productivity Improvement

리드용 와이어의 생산성 향상을 위한 평압연 최적설계

  • Park, Chang Hyung (Division of Mechanical Engineering, Yeungnam University) ;
  • Kim, Jin Ho (Division of Mechanical Engineering, Yeungnam University)
  • 박창형 (영남대학교 기계공학과) ;
  • 김진호 (영남대학교 기계공학과)
  • Received : 2017.02.09
  • Accepted : 2017.05.12
  • Published : 2017.05.31

Abstract

In this paper, we report a method of improving the productivity of lead wire fabricated through the rolling process by increasing its linear velocity. The most important point to consider when raising the linear velocity is that the original specifications must still be adhered to. In other words, the dimensional tolerance must be satisfied when increasing the linear velocity of the wire without causing cracks. However, if the linear velocity of the wire is increased, the degree of reduction must also be increased, which causes more damage to the wire and increases the load on its surface. Therefore, we studied a three step rolling process which can satisfy the specifications of the wire produced through the two step rolling process and improve the productivity. In this study, only the roll gap of the three-stage rolling roller is assumed to be a variable, while the other conditions are the same as the field conditions. In addition, through the PIANO (Process Integration, Design and Optimization) tool, the (optimum?) surface roughness and maximum stress are maintained.

Keywords

Cold rolling;Flat rolling;Lead;Optimal design;Productivity

Acknowledgement

Grant : 고정밀(두께공차:10um, 진직도:1/1000mm) 반환선개발

Supported by : 중소기업청

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