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압출가공에 있어서 표면영향을 고려한 마찰수식모델에 관한 연구
오박균(Park-kyoun Oh),손남길(Nam-kil Son),김민웅(Min-woong Kim) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
??To carry out perfectly the forming analysis of the extruding products it is necessary that the friction boundary condition between dies and blanks should be worked out the accuate numerical friction models. But, the existing numerical models of the extrusion may be large different from the actual conditions. In this study, accurate analysis of the extrusion forming for surface roughness should be subjected. It is to develop accuracy of the numerical friction models and potentialize to apply for the high speed forming work in the extrusion. Therefore, the results should improve accuracy and cause energy saving for the extrusion and finally to expand the applying areas of the results.
아이어닝에 있어 표면영향을 고려한 마찰처리 수식모델 개발
오박균(Park-Kyoun Oh),박경우(Kyoungwoo Park),손남길(Nam-kil Son) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.11
To carry out perfectly the forming analysis of the ironing products, it is necessary that the friction boundary condition between dies and blanks should be established for the accurate numerical friction models. The numerical friction models adapted in the conventional plate forming software, however, is different from the actual ones. In this study, accurate analysis of the ironing for surface roughness should be subjected. Especially, the existing software for forming can be used only in the limited range for the case of high speed forming work. Therefore, the numerical friction model which describes the friction boundary condition is developed in order to improve the accuracy of the plate forming analysis and to expand the applying areas of the results.
오박균(Park-Kyoun Oh),박경우(Kyoungwoo Park),손남길(Nam-kil Son) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
To carry out perfectly the forming analysis of the ironing products, it is necessary that the friction boundary condition between dies and blanks should be established for the accuate numerical friction models. The numerical friction models adapted in the conventional plate forming software, however, is different from the actual ones. Especially, the existing software for forming can be used only in the limited range for the case of high speed forming work. Therefore, in this study, the numerical friction model which describes the friction boundary condition is developed in order to improve the accuracy of the plate forming analysis. And to expand the applying areas of the results.