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금형 높이가 다양한 프레스 공정의 금형 교체시간 단축 사례
정병호(Byung-Ho Jeong),라순영(Soon-Young La),박보은(Bo-Eun Park),장연상(Yan-Shuang Zhang) 한국산업경영시스템학회 2011 한국산업경영시스템학회지 Vol.34 No.2
The reduction of setup time is very important in a lot production system. A punch press is a typical system of lot production. This paper describes a case study to reduce setup time of a punch press manufacturing system. Especially, this case study reduced the time of die exchange in the case that the standardization of die height is impossible realistically because of diversity on die height and heavy expenses. This study adopts a supplementary die and supplementary blocks to make the use of auto-clamping device possible. The paper also gives a sequencing algorithm to reduce the number of exchange of the supplementary die.