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Springback characteristics in U-channel forming of tailor rolled blank
Alternative TitleSpringback characteristics in U-channel forming of tailor rolled blank
Zhang Huawei1; Liu Lizhong1; Hu Ping1; Liu Xianghua2
2012
Source PublicationACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN1006-7191
Volume25Issue:3Pages:207-213
AbstractResidual stress developed during the rolling process of tailor rolled blank (TRB) can affect the springback of finished parts considerably. Springback characteristics of unannealed and annealed TRBs were investigated by means of numerical simulation and experiments taking U-Channel as an example. TRBs were annealed by the annealing process (700 degrees C, holding time 10 h), then stamping and springback processes of unannealed and annealed TRBs were simulated, and corresponding experiments were also carried out. Effects of the transition zone length, the blank thickness, the friction coefficient and the die clearance on the springback of TRB were analyzed. The results demonstrate that the springback of TRB annealed at 700 degrees C for 10 h reduces significantly. For unannealed and annealed U-Channels, the springback of TRB U-Channel is in direct proportion to the die clearance and is in inverse proportion to the transition zone length, the blank thickness and the friction coefficient. Springbacks of the thinner monolithic (uniform thickness) blank, the thinner side of TRB, the thicker side of TRB and the thicker monolithic blank are sorted in descending order.
Other AbstractResidual stress developed during the rolling process of tailor rolled blank (TRB) can affect the springback of finished parts considerably. Springback characteristics of unannealed and annealed TRBs were investigated by means of numerical simulation and experiments taking U-Channel as an example. TRBs were annealed by the annealing process (700 ℃, holding time 10 h), then stamping and springback processes of unannealed and annealed TRBs were simulated, and corresponding experiments were also carried out. Effects of the transition zone length, the blank thickness, the friction coeffcient and the die clearance on the springback of TRB were analyzed. The results demonstrate that the springback of TRB annealed at 700 ℃ for 10 h reduces significantly. For unannealed and annealed U-Channels, the springback of TRB U-Channel is in direct proportion to the die clearance and is in inverse proportion to the transition zone length, the blank thickness and the friction coeffcient. Springbacks of the thinner monolithic (uniform thickness) blank, the thinner side of TRB, the thicker side of TRB and the thicker monolithic blank are sorted in descending order.
KeywordTailor rolled blank Springback Annealing
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [National Basic Research Program of China] ; [Fundamental Research Funds for the Central Universities]
CSCD IDCSCD:4586730
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/143848
Collection中国科学院金属研究所
Affiliation1.大连大学
2.中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhang Huawei,Liu Lizhong,Hu Ping,et al. Springback characteristics in U-channel forming of tailor rolled blank[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2012,25(3):207-213.
APA Zhang Huawei,Liu Lizhong,Hu Ping,&Liu Xianghua.(2012).Springback characteristics in U-channel forming of tailor rolled blank.ACTA METALLURGICA SINICA-ENGLISH LETTERS,25(3),207-213.
MLA Zhang Huawei,et al."Springback characteristics in U-channel forming of tailor rolled blank".ACTA METALLURGICA SINICA-ENGLISH LETTERS 25.3(2012):207-213.
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