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논문 기본 정보

자료유형
학술대회자료
저자정보
김영삼 (르노삼성자동차) 이승상 (르노삼성자동차) 송진철 (르노삼성자동차) 임방섭 (신영하이테크)
저널정보
한국자동차공학회 한국자동차공학회 춘계학술대회 2016 한국자동차공학회 춘계학술대회
발행연도
2016.5
수록면
913 - 918 (6page)

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초록· 키워드

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In recent days, Styling of automotive vehicle tends to be sharpened more and more. Specially, for clear and sharp styling of vehicle, The role of character line in vehicle design becomes more important. If character line has sharp edge and small radius, global appearance of vehicle looks like sharp and clear. But small character radius causes a kind of surface defect which is called slip line (kind of skid mark of initial contact line moves). In order to have small and clear character line for outer stamping panel, new stamping process method is required to satisfy vehicle appearance quality.
In this study, The Variable Thickness Offset method between upper and lower stamping die has been applied. Usually the clearance between upper and lower stamping die has constant distance of blank thickness except some special case.
To avoid and reduce slip line surface defect, the smaller clearance than blank thickness has been applied in the area that the skid line moves. The smaller clearance than blank thickness means giving higher contact pressure to defect area compared to other surface area. As a result, Higher contact pressure makes the slip line defect can be dispersed to adjacent surface.
The Variable Thickness Offset method can be considered that it is effective method to improve and reduce slip line surface defect giving by enough contact pressure to blank material. Variable Thickness Offset consists of smaller thickness offset area and transition area.

목차

Abstract
1. 서론
2. Slip Line과 편차가공
3. 검증
4. 결론 및 향후 과제
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UCI(KEPA) : I410-ECN-0101-2017-556-002273845