Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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A Study on the Burr Minimization in Punching Process Based on Micro Die Alignment

다이의 미세정렬을 통한 전단 버의 최소화에 관한 연구

  • 홍남표 (강원대학교 기계ㆍ메카트로닉스공학과 대학원) ;
  • 신용승 (강원대학교 기계ㆍ메카트로닉스공학과 대학) ;
  • 신홍규 (강원대학교 메카트로닉스공학과 대학) ;
  • 김헌영 (강원대학교 기계ㆍ메카트로닉스공학) ;
  • 김병희 (강원대학교 기계ㆍ메카트로닉스공학부)
  • Published : 2004.07.01
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Abstract

The shearing process for the sheet metal is normally used in the precision elements such as a lead frame of IC chips. In these precision elements, the burr formation brings a bad effect on the system assembly and demands the additional deburring process. In this paper, we developed the small size precision punching system to investigate burr formation mechanism and to present kinematically punch-die aligning methodology between the rectangular shaped punch and die. The punch is driven by an air cylinder and the sheet metal is moving on the X-Y table system which is driven by two stepping motors. The whole system is controlled by microprocessor and is communicated with each other by RS232C serial communication protocol. Punching results are measured manually using the SEM photographs and are compared aligning result with miss aligning one.

Keywords

References

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