드로잉 공정에서 소재 유입에 영향을 미치는 인자에 관한 연구
A study on the factors affecting to material inflow in the drawing process
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참고문헌
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초록
Sheet Metal Forming by Press Forming Process takes a lot of time and cost from mold design to manufacturing. Therefore, all of die-makers are continuously conducting research to reduce the number of mold processes or the size of blanks to reduce costs. In the case of Forming complex shapes such as automobile component, wrinkles and cracks occur, so draw beads are used. Draw beads play an important role in suppressing the inflow of materials and minimizing the size of blanks. Factors that affect material flow include draw bead, blank holding pressure, lubricant, and surface roughness of punch and die. Most of the factors affect friction. In this study, after classifying circular beads and rectangular beads in cylindrical drawing molds using the AutoForm analysis program, the factors affecting the material inflow were considered.
Abstract
Sheet Metal Forming by Press Forming Process takes a lot of time and cost from mold design to manufacturing. Therefore, all of die-makers are continuously conducting research to reduce the number of mold processes or the size of blanks to reduce costs. In the case of Forming complex shapes such as automobile component, wrinkles and cracks occur, so draw beads are used. Draw beads play an important role in suppressing the inflow of materials and minimizing the size of blanks. Factors that affect material flow include draw bead, blank holding pressure, lubricant, and surface roughness of punch and die. Most of the factors affect friction. In this study, after classifying circular beads and rectangular beads in cylindrical drawing molds using the AutoForm analysis program, the factors affecting the material inflow were considered.
참고문헌 (8)
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- B. C. Kang, "Study on the Drawbead Forces of High Strength Steel Sheet Considering Bending Effects in Non-contact Region", 1~38 (2018)
- W. T. Kim, "Analysis on Parameter Affecting the Friction Coeffcient in Drawbead Forming of Sheet Metal", Transactions of Materials Processing, 14(8), pp.185~192 (2005)
- 문성준, "드로우비드력 측정용 실험금형", 소성∙가공, 17(7), pp.511~516 (2008), 한국소성∙가공학회