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크롬 코팅 처리된 금형에서 박판의 온간 딥드로잉 성형성에 관한 연구
이재동,공경환,최치수,김헌영,서대교 기계기술연구소 2000 성균관대학교 논문집 기계기술편 Vol.2 No.1
Some deep drawing characteristics to the elevated temperatures were investigated for the SCP1 steel sheets by using the Cr-coated die. For this investigations, six steps of temperature ranges, from room temperature to 250℃, and six kinds of drawing ratio, from 2.4 to 2.9 were adopted. As a result, the limiting drawing ratio, maximum drawing force, and the maximum drawing depth were sensitively affected by the elevated temperatures, and the more stable thickness strain distribution was observed to the elevated temperatures. Some experimental results were compared with analytical results using the DYNA-3D code.