锻压技术

连续往复式等通道转角挤压装置的研究

英文标题：Study on device for continuous reciprocating ECAP

作者：刘秀娟刘白姜俊侠李庆亮

单位：深圳信息职业技术学院

分类号：TG376

出版年,卷(期):页码：2014,39(5):96-99

摘要：

目前常见的等通道转角挤压是用“L”形通道结构模具配合压力机来进行非连续挤压的，该模具结构存在不足之处，特别是在实现连续往复挤压方面存在极大的困难。通过改进模具结构和压力机工作台的结构，提出把模具中的“L”形通道改进成“U”形通道，并在常见液压机的固定工作台上增设移动工作台装置和工作台运动控制系统的方式来实现挤压模具在工作台上的精确移动和位置的改变，从而可以在不取出试样的条件下实现连续往复式多道次挤压块体材料，挤压后的材料可得到超细晶结构。

The common ECAP is non-continuous extrusion with L-shaped channel structure mold at present. The mold structure is of shortage and not good at continuous reciprocating extrusion especially. The improved structures of die and workbench of press were proposed，by which the L-shaped channel die was displaced by a U-shaped channel die, and a moving workbench device and its motion control system were attached to the fixed workbench of common hydraulic machine in order to precisely control the movement and position change of the extrusion die on the workbench. Thus, by the device, a continuous reciprocating multi-pass extrusion of block material could be achieved without removing the samples. And the material after extruding is of ultra-fine grain structure.

基金项目：

广东省自然科学基金资助项目（S2012010009861）；深圳信息职业技术学院千百十工程（SZIIT-QBS-12-011）

刘秀娟（1978-），女，博士，副教授

参考文献：

［1］刘锋，王庆娟，杜忠泽，等. ECAP制备超细晶材料组织及其性能的研究进展[J].兵器材料科学与工程,2013,36(4):1-4.Liu Feng, Wang Qingjuan, Du Zhongze, et al. Research progress in microstructure and property of ultra-fine grain materials processed by ECAP[J]. Ordnance Material Science and Engineering, 2013, 36(4):1-4.
［2］郭炜，王渠东.大塑性变形制备超细晶复合材料的研究进展[J].锻压技术,2010,35(1): 12-17.Guo Wei，Wang Qudong. Research progress of fabricating ultrafine-grained composites by severe plastic deformation [J]. Forging & Stamping Technology, 2010, 35(1): 12-17.
［3］周超，彭必友，沈冰，等.基于变形均匀性的AZ31镁合金ECAP多道次成形工艺研究[J]. 锻压技术,2013,38(3): 151-157.Zhou Chao, Peng Biyou, Shen Bing, et al. Study of forming process for AZ31 magnesium alloy during multiple passes ECAP based on homogeneous deformation [J]. Forging & Stamping Technology, 2013, 38(3): 151-157.
［4］赵西成，解晨，王耿洁，等. 90°模具室温4道次ECAP变形纯钛的宏观织构演变[J].稀有金属材料与工程，2013, 42(6): 43-49.Zhao Xicheng, Xie Chen, Wang Gengjie, et al. Texture evolution in commercially pure titanium after ECAP using a 90° die at room temperature [J]. Rare Metal Materials and Engineering, 2013, 42(6): 43-49.
［5］徐春杰，郭学锋，张忠明，等. 往复挤压及正挤压AZ91D镁合金丝材的组织及性能[J]. 稀有金属材料与工程，2007，36(3):500-504.Xu Chunjie, Guo Xuefeng, Zhang Zhongming, et al. Microstructure and properties of reciprocating extruded and continuing forward extruded wire material of AZ91D alloys [J]. Rare Metal Materials and Engineering, 2007, 36(3):500-504.

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