Study on Wrinkle Defect in Square Box of Tailor Rolled Blank

doi:10.12068/j.issn.1005-3026.2016.11.008

Journal of Northeastern University Natural Science ›› 2016, Vol. 37 ›› Issue (11): 1554-1558.DOI: 10.12068/j.issn.1005-3026.2016.11.008

• Materials & Metallurgy • Previous Articles Next Articles

Study on Wrinkle Defect in Square Box of Tailor Rolled Blank

ZHANG Hua-wei¹， WU Jia-lu¹， LIU Xiang-hua²， WANG Xin-gang¹

1.School of Control Engineering， Northeastern University at Qinhuangdao， Qinhuangdao 066004， China; 2.Research Academy， Northeastern University， Shenyang 110819， China.

Received:2015-11-25 Revised:2015-11-25 Online:2016-11-15 Published:2016-11-18
Contact: ZHANG Hua-wei
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Abstract

Abstract: The wrinkle defect in the square box of tailor rolled blank (TRB) was studied by numerical simulation and stamping experiment. The mechanism of producing such wrinkle defect in TRB square box was analyzed and the effect of the binder force on the wrinkle defect was discussed. The results indicate that the spots inclined to form the wrinkle in the TRB square box are the straight flange on the thinner side and the flange in the thickness transition zone. When the binder force on the thicker side is not great enough， the wrinkle could also form at the straight flange on the thicker side. Under the conditions of no crack and the large movement in the thickness transition zone， the larger binder force can help to improve the wrinkle resistance of TRB and when the binder force is constant the restriction of the wrinkle of TRB is the best.

Key words: tailor rolled blank(TRB), square box, wrinkle defect, thickness strain, binder force

CLC Number:

TG386

ZHANG Hua-wei， WU Jia-lu， LIU Xiang-hua， WANG Xin-gang. Study on Wrinkle Defect in Square Box of Tailor Rolled Blank[J]. Journal of Northeastern University Natural Science, 2016, 37(11): 1554-1558.

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Study on Wrinkle Defect in Square Box of Tailor Rolled Blank

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