Springback characteristics in U-channel forming of tailor rolled blank

IMR OpenIR

	Springback characteristics in U-channel forming of tailor rolled blank
其他题名	Springback characteristics in U-channel forming of tailor rolled blank
	Zhang Huawei 1; Liu Lizhong 1; Hu Ping 1; Liu Xianghua 2
	2012
发表期刊	ACTA METALLURGICA SINICA-ENGLISH LETTERS
ISSN	1006-7191
卷号	25 期号:3 页码:207-213
摘要	Residual 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.
其他摘要	Residual 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.
关键词	Tailor rolled blank Springback Annealing
收录类别	CSCD
语种	英语
资助项目	[National Natural Science Foundation of China] ; [National Basic Research Program of China] ; [Fundamental Research Funds for the Central Universities]
CSCD记录号	CSCD:4586730
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/143848
专题	中国科学院金属研究所
作者单位	1.大连大学 2.中国科学院金属研究所
推荐引用方式 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.