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논문 기본 정보

자료유형
학술저널
저자정보
윤형원 (한국생산기술연구원) 박남수 (한국생산기술연구원)
저널정보
한국소성·가공학회 소성·가공 소성가공 제32권 제6호(통권 제208호)
발행연도
2023.12
수록면
360 - 366 (7page)

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초록· 키워드

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This study is concerned with the surface quality of products according to the material and coating condition of the forming tool in incremental sheet forming. Three forming tools, SKD11 with and without diamond-like-coating (DLC) and polymer tool tip, were used to form conical and pyramidal geometries to take into account the influence of friction between the forming tool and the sheet on the surface quality including geometric accuracy of deformed samples. Each test was performed using SUS304 with a thickness of 0.4 mm according to different incremental depths per lap of 0.5 mm, 1.0 mm, and 1.5 mm for the contour tool path, considering the increase in normal force which is associated with the frictional behavior during local deformation. The surface quality was then investigated through surface roughness measured with KEYENCE VR-6000 and relative strain distribution including deformed shape analyzed with ARGUS which is a non-contact optical strain measurement system. Differences between 3D CAD surfaces and captured geometry from experiments were evaluated to compare the effect of friction on geometric accuracy. From comparisons of experimental results, it was revealed that the polymer-based tool tip can improve surface quality and geometric accuracy by reducing the undesired material flow due to local friction in the increment sheet forming process.

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Abstract
1. 서론
2. 점진성형 실험구성
3. 점진성형 실험결과
4. 결론
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