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Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)
- Volume 20 Issue 2
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- Pages.594-603
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- 1996
- /
- 1226-4873(pISSN)
- /
- 2288-5226(eISSN)
DOI QR Code
A Study on the Manufacturing Cold Forging Dies by Cold Hobbing
콜드호빙에 의한 냉간단조용 금형제작에 관한 연구
- Yoo, Heonil (School of Mechanical Design engineering, Kookmin University) ;
- Kim, Sei-Hwan (Dept. of Die and Mould, Chonan National Technical College, Chonan) ;
- Seo, Hee-Kang (Korea University of Technology and Education)
- Published : 1996.02.01
Abstract
It has been known that the life time of cold forging dies is shorten by the cracks and wear produced during the operation. Thus it is required to mak the same new one too often, At this time of making new ont the cutting work and electical discharge machining were mormally used. But the precision of product is declined in every times of making the mew dies due to the diffefence in dimensional accuracy arised from the electical discharge machining. Especially it can't meet the delivery date because the production was delayed for making another die. Furthemore it has the problem of increasing the production cost. Therfore inthis study we tried to solve these problems using the hobbing method instead of electical discharge machining.
Keywords