Transactions of Materials and Heat Treatment

Title：Design on hot extrusion process for aluminum alloy blades

Authors： Liu Shuaiyang Wang Aiqin Xin Xuanrong

Unit： Henan University of Science and Technology Luoyang Qin Han Cold Forging Co. Ltd.

KeyWords： blade extrusion upsetting eccentric concave mould method numerical simulation

ClassificationCode：TG376

year,vol(issue):pagenumber：2017,42(4):103-109

Abstract：

For the problems of long process, high reject rate and low dimension accuracy in the traditional die forging for big tenon blade, the extrusion method was put forward to manufacture blades. Firstly, the blade blank was produced by extruding the blade body and upsetting the tenon, and then the blade product was obtained by subsequent machining. Next, the extrusion process was simulated by Deform-3D software, and the blank shape and size were optimized. Furthermore, the stress and strain distributions of blade were analyzed, and the fillet radius was changed from R1 mm to R6 mm at the thinnest place of blade body. Finally, the pressure center was changed by the eccentric concave mould method, the problems such as uneven flow, cracking, bending etc in the extrusion process were solved, and the extrusion and upsetting mould structures were designed. The optimized simulation results show that the metal has good fluidity, and the blade is of high forming precision.

Funds：

国家自然科学基金资助项目（51371077）

刘帅洋（1992- ），男，硕士研究生 E-mail：liusy107@163.com 通讯作者：王爱琴（1964- ），女，博士，教授 E-mail：aiqin_wang888@163.com

Reference：

[1]刘郁丽，杨合，詹梅. 单榫头叶片锻造过程成形缺陷分析[J]. 机械科学与技术，2003，22(2)：283-284.

Liu Y L, Yang H, Zhan M. Analysis of forming defects in the forging process of blade with a single tenon[J]. Mechanical Science and Technology, 2003, 22(2): 283-284.

[2]刘郁丽，杨合，詹梅. 单榫头叶片叶身精锻成形规律[J]. 机械工程学报，2002，38(6)：111-114.

Liu Y L, Yang H, Zhan M. Forming laws of blade body in precision forming process of blade with a tenon[J]. Chinese Journal of Mechanical Engineering, 2002, 38 (6): 111-114.

[3]熊爱明，薛善坤，李晓丽，等. 叶片锻造技术的现状与发展趋势探讨[J]. 机械科学与技术，2001，20(6)：806-808.

Xiong A M, Xue S K, Li X L, et al. On technological development of blade forging[J]. Mechanical Science and Technology, 2001, 20 (6): 806-808.

[4]于翠华，王少纯，王笑香，等. AZ31镁合金汽轮发电机叶片热挤压成形数值模拟[J]. 轻金属，2012，（10）：48-51.

Yu C H, Wang S C, Wang X X, et al. Numerical simulation in hot extrusion processes for steam turbo-generator blades of AZ31 magnesium alloy [J]. Light Metals, 2012, (10): 48-51.

[5]刘帅洋. 三菱叶片热挤压工艺及模具设计[D]. 洛阳：河南科技大学，2016.

Liu S Y. Hot Extrusion Process and Die Design of MITSUBISHI Blade [D]. Luoyang: Henan University of Science and Technology, 2016.

[6]赵建吉，许晓静，陈洋，等.预变形对超高强铝合金Al-Zn-Mg-Cu-Zr-Sr 组织与性能的影响[J]. 稀有金属，2016，40(12)：1193-1199.

Zhao J J，Xu X J，Chen Y，et al. Microstructures and properties of ultra-high-strength Al-Zn-Mg-Cu-Zr-Sr alloy with pre-deformation [J]. Chinese Journal of Rare Metals，2016，40(12)：1193-1199.

[7]王芳，齐广霞，曹娜. GH4169合金叶片制坯成形工艺数值模拟优化[J]. 锻压技术，2012，37(2)：148-153.

Wang F, Qi G X, Cao N. Numerical simulation optimization of blocking forming process for GH4169 alloy blade[J]. Forging & Stamping Technology, 2012, 37 (2): 148-153.

[8]田福祥. 挤压模和镦锻模75例设计应用评析[M]. 北京：机械工业出版社，2011.

Tian F X. Design Application Evaluation of 75 Cases for Extrusion Die and Upsetting Forging Die [M]. Beijing: China Machine Press, 2011.

[9]赵军，马世博，马进. 径向分模轴向挤压精密成形柔性模具系统[J]. 塑性工程学报，2011，18(1)：62-66.

Zhao J, Ma S B, Ma J. Flexible die system of precision forming for radial die parting axial extrusion [J]. Journal of Plastic Engineering, 2011, 18 (1): 62-66.

[10]单垄垄，辛选荣. 高速钢斜撑块精密挤压成形工艺与性能研究 [J] . 锻压技术，2012，37(3)：67-72.

Shan L L, Xin X R. Research on precise extrusion process and property of high-speed steel sprag[J]. Forging & Stamping Technology, 2012, 37 (3): 67-72.

[11]于继华，黄艳松，余三山. 某航空发动机压气机整流叶片锻造工艺研究[J]. 机械工程师，2014，(12)：287-288.

Yu J H, Huang Y S, Yu S S. Forging technology study of compressor straightener blades for an aero-engine [J]. Mechanical Engineer, 2014, (12): 287-288.

[12]原国森，辛选荣，刘汀，等. 汽车发电机爪极精密成形新工艺[J]. 锻压技术，2009，34(2)：10-12.

Yuan G S, Xin X R, Liu T, et al. New precision forming technology for auto generator claw pole[J]. Forging & Stamping Technology, 2009, 34(2): 10-12.

[13]贾俐俐. 挤压工艺及模具[M]. 北京：机械工业出版社，2004.

Jia L L. Extrusion Technology and Die [M]. Beijing: China Machine Press, 2004.

Service：

【This site has not yet opened Download Service】【Add Favorite】