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자료유형
학술대회자료
저자정보
저널정보
한국자동차공학회 한국자동차공학회 춘 추계 학술대회 논문집 한국자동차공학회 2004년 춘계학술대회 논문집 Volume Ⅲ
발행연도
2004.6
수록면
1,705 - 1,711 (7page)

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초록· 키워드

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Machinability of structural steels is greatly important in manufacturing process for automobile Parts. Therefore normally Pb, Bi and S elements are added to improve machinability of structural steels, especially Pb addition has been widely used because of its exceptional ability to increase machinability with no bad effects on the mechanical properties. But Pb added free cutting steels are subjected to restriction on production, application and recycling for the reason of their Hazardous effects on the human body. Hence free cutting steel without Pb addition is required to fulfill a prolonged environmental regulation strengthened continually. In recent years, there has been an increasing endeavor to prepare for cost competitiveness with maintaining high structural performance of materials. And cost reduction of automobile parts has been achieved through development of new materials. Breaking from the conception that steels improved machinability but they have a poor ability for forming, graphitzed-steels have been investigated due to their excellent combination of machinability and formability. In this paper, material properties and forging inaccordace with heat treatment have been evaluation on graphitzed steel in which having excellent machinability and ability of forging. And application status for rack bush as an part of steering also have been studied.

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Abstract
1. 서론
2. 이론적 배경
3. 실험 방법
4. 실험 결과
5. 결론
References

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