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短时局部热处理提高2B06铝合金口框零件成形性的模拟研究
英文标题:Simulation study on formability improvement of 2B06 aluminum alloy frame through short time local heat treatment
作者:王志坚 高昱霖 宋鸿武 王玲 王佳乐 
单位:沈阳航空航天大学 中国科学院金属研究所 沈阳飞机工业(集团)有限公司 
关键词:热处理差性板材 2B06铝合金 局部硬化 口框零件 应变路径 
分类号:TG386
出版年,卷(期):页码:2019,44(9):133-140
摘要:

通过单向拉伸试验获得2B06铝合金原始O态和短时热处理板材的真实应力-应变曲线。采用有限元模拟方法探讨了局部热处理差性板材在铝合金复杂零件成形中的应用,系统研究了不同局部热处理方案对铝合金复杂口框零件成形性的影响,并分析了零件成形能力提高的机理。模拟结果表明:采用原始O态板材成形口框零件时,局部减薄严重,破裂多发生在平面应变变形区;合适的局部热处理方案可显著提高口框零件的成形能力,局部热处理引起的材料局部硬化可显著提高2B06铝合金局部成形性;同时,软硬材料的梯度分布可使原始破裂位置的应变路径由平面应变转变为单拉状态,显著提高板材的成形性能。
 

The true stress-strain curves of 2B06 aluminum alloy with original O-state and plate through short time heat treatment were obtained by uniaxial tensile test, and the application of tailored heat treated blanks (THTB) in the forming of aluminum alloy complex parts was discussed by finite element simulation method. Then, the influences of different local heat treatment schemes on the formability of aluminum alloy complex frame parts were systematically studied, and the mechanism of improving the formability of parts was also analyzed. The simulation results show that local thinning is severe and fracture occurs usually in the plane strain region when the frame part is formed by original O-state plate, and the suitable local heat treatment scheme can greatly improve the formability of the frame parts. Furthermore, the local hardening of materials caused by the local heat treatment significantly improves the local formability of 2B06 aluminum alloy. At the same time, the gradient distribution of soft and hard materials changes the strain path in the original fracture position from plane strain to uniaxial tensile state, and the formability of sheet is improved remarkably.

基金项目:
沈阳市重点科技研发计划对外科技交流合作专项(17-105-6-00);国家自然科学基金青年基金(51205261)
作者简介:
王志坚(1974-),女,博士,教授 E-mail:wangzhijian1974@sina.com 通讯作者:宋鸿武(1981-),男,博士,副研究员 E-mail:hwsong@imr.ac.cn
参考文献:


[1]邓学峰,张辉,陈振华.铝合金板成形性及成形工艺研究现状
[J].材料导报,2005, 19 (12):56-59.


Deng X F, Zhang H, Chen Z H. Sheet metal formability and forming process of aluminum alloy
[J]. Materials Review, 2005, 19 (12):56-59.



[2]Staud D, Merklein M . Inverse approach to the forming simulation of tailored heat treated blanks
[J]. International Journal of Material Forming, 2008, 1(1):37-40.



[3]涂集林,王永军,魏生民.先进钣金成形技术及装备发展现状
[J].航空制造技术,2015,58(16):44-47.


Tu J L, Wang Y J, Wei S M. Advanced forming technology and equipment development of sheet metal
[J]. Aeronautical Manufacturing Technology, 2015,58(16):44-47.



[4]Haase C, Wurst H. Zur frage der kalt-und warmaushrtung bei aluminium-magnesium-silizium-legierungen
[J]. Z. Metallkunde, 1941, 33: 399-403.


Haase C, Wurst H.Concerning cold and heat hardening in aluminium magnesium silicon alloys
[J]. Z. Metallkunde, 1941, 33: 399-403.



[5]Dirks F J. Tiefziehen Vorverfestigter Und Partiell GeglHter Ronden Aus Aluminium Und Aluminiumlegierungen
[M]. Germany:Technische Universitt Berlin, 1971.


Dirks F J. Deep Drawing of Pre-fixed and Partially Welded Wheels of Aluminium and Aluminium Alloy
[M]. Germany:Technical University of Berlin, 1971.



[6]Vollertsen F. Modelling the deep drawing of process optimized blanks
[A]. Proc. 20th Biennial IDDRG Congress
[C]. Genval, Belgium,2000.



[7]Geiger M, Merklein M, Staud D, et al. An inverse approach to the numerical design of the process sequence of tailored heat treated blanks
[J]. Production Engineering, 2008, 2(1):15-20.



[8]Hung N, Marion M. Improved formability of aluminum alloys using laser induced hardening of tailored heat treated blanks
[J]. Physics Procedia, 2012, 39:318-326.



[9]Geiger M, Merklein M, Kerausch M . Finite element simulation of deep drawing of tailored heat treated blanks
[J]. CIRP Annals-Manufacturing Technology, 2004, 53(1):223-226.



[10]王志坚,刘保义,宋鸿武,等.短时高温热处理对H态5250铝合金力学性能的影响
[J].科研,2018,(2): 156-158.


Wang Z J, Liu B Y, Song H W, et al. Effect of short time high temperature heat treatment on mechanical properties of H-state 5250 aluminum alloy
[J]. Research, 2018,(2): 156-158.



[11]Alexander K, Daniel W, Marion M. Influence of a short term heat treatment by conduction and induction on the mechanical properties of AA6014 alloys
[J]. Physics Procedia, 2014, 56(3):1410-1418.



[12]金飞翔,钟志平,李凤娇,等.不同硬化模型对铝合金板冲压成形模拟结果的影响
[J].机械工程学报,2017, 53 (22):57-66.


Jin F X, Zhong Z P, Li F J, et al. Influence of different hardening model for the simulating results of the aluminum alloy sheet stamping
[J]. Journal of Mechanical Engineering, 2017, 53 (22):57-66.



[13]Keeler S P. Plastic Instability and Fracture in Sheets Stretched over Rigid Punches
[D]. Cambridge:Massachusetts Institute of Technology, 1961.



[14]Zarini S, Mostaed E, Vedani M, et al. Formability enhancement of Al6060 sheets through fiber laser heat treatment
[J]. International Journal of Material Forming, 2017, 10(5): 741-751.



[15]Merklein M, Johannes M, Lechner M, et al. A review on tailored blanks-Production, applications and evaluation
[J]. Journal of Materials Processing Technology, 2014, 214(2):151-164.



[16]Kahrimanidis A, Wortberg D, Merklein M. Approach to minimize the distortion of 6xxx-aluminum tailor heat treated blanks in industrial applications
[J]. Production Engineering, 2015, 9(5-6):569-576.

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