锻压技术

4032铝合金花盘锻压成形技术

英文标题：Forging technology of aluminum alloy 4032 faceplate

作者：陈满王匀许桢英张太良张扣宝

分类号：TG319

出版年,卷(期):页码：2017,42(7):13-18

摘要：

针对涡旋式压缩机花盘在温锻成形过程中出现的内壁开裂现象，对原成形工艺进行数值模拟，研究了终锻成形中的裂纹形成机理,并发现损伤值达到1.28。为了消除花盘侧壁开裂问题，提出在原工艺基础上改变毛坯形状，以提高金属流动的合理性，使锻件材料填充良好，变形均匀。通过对具有不同形状的毛坯成形过程的对比分析，给出了最优的毛坯形状：增大预锻件凹口深度，采用阶梯状凹口，针对外壁的截面形状，将原有的阶梯状改为圆弧状。采用改进的方案温锻花盘时，裂纹发生处的损伤值明显降低，仅有0.732，裂纹消失，各项指标都达到技术要求。改进后涡旋式压缩机花盘的成品率达到100%。

For the crack phenomenon of the scroll compressor faceplate internal wall during the warm forging process, the previous forming process was simulated. Then, the cracking mechanism in final forging was studied, and the damage value reached up to 1.28. In order to overcome the problem of cracking in the internal wall of faceplate, it was put forward to change the blank shape to improve the rationality of metal flow based on the previous process, and the material was filled well and in uniform deformation. Furthermore, through comparative analysis of the forming process of blank with different shapes, the optimal blank shape was given by increasing the depth of pre-forging notch, applying a stepped recess and changing ladder shape into arc shape based on the outer wall cross-sectional shape. After improving the scheme of warm forging for faceplate, the damage value at crack is reduced significantly to 0.732, and the crack disappeares. Thus, every indicator fits for the technical requirements, and the pass rate of scroll compressor faceplate is about 100%.

基金项目：

国家自然科学基金资助项目（51575245）；江苏省科技成果转化专项资金资助项目(SBA2014030056)；“青蓝工程”学术带头人资助项目(苏教师(2014)23号)

作者简介：陈满 (1990-)，男，硕士研究生，E-mail：1255858946@qq.com；通讯作者：王匀（1975-），男，博士，教授，E-mail：wangyun@ujs.edu.cn

参考文献：

[1]刘振全,王君,强建国.涡旋式流体机械与涡旋压缩机[M].北京：机械工业出版社, 2009.

Liu Z Q, Wang J, Qiang J G. Scroll Fluid Machinery and Scroll Compressors[M]. Beijing: China Machine Press, 2009.

[2]李连生.涡旋压缩机[M].北京:机械工业出版社,1998.

Li L S. Scroll Compressors[M]. Beijing: China Machine Press,1998.

[3]王玉凤.4032铝合金组织及力学性能分析[D].哈尔滨：哈尔滨工业大学, 2010.

Wang Y F. Study of the Microstructures and Mechanical Properties of 4032 Alloy[J]. Harbin: Harbin Institute of Technology, 2010.

[4]邵勇，陆彬，陈军,等. 基于渐进优化的锻造预成形优化设计研究[J]. 机械工程学报，2012, 48(22): 65-71.

Shao Y，Lu B，Chen J, et al. Research on optimal design of preform of forging based on evolutionary structural optimization[J]. Journal of Mechanical Engineering, 2012, 48(22): 65-71.

[5]孟彬，鲍官军，吴海伟, 等. 汽车转向球铰壳体预成形件的形状优化设计[J]. 锻压技术, 2010, 35(4): 1-5.

Meng B, Bao G J, Wu H W, et al. Shape optimization of spherical hinge shell preform for automotive steering link[J]. Forging & Stamping Technology, 2010, 35(4): 1-5.

[6]李君.复杂壳体类零件流动控制成形工艺数值模拟及实验研究[D]. 合肥：合肥工业大学, 2014.

Li J. Numerical Simulation and Experimental Study on FCT of Complex Structure Parts[D]. Hefei: Hefei University of Technology, 2014.

[7]Zhan M, Chen Z, Yan H, et al. Deformation behaviors of porous 4032 Al alloy preform prepared by spray deposition during hot rolling[J]. Journal of Materials Processing Technology, 2007, 182(1-3): 174-180.

[8]陈强，陈拂晓，杨永顺，等. 4032铝合金的高温压缩变形行为及本构方程[J]. 热加工工艺，2013, 42(7): 34-39.

Chen Q, Chen F X, Yang Y S, et al. Hot deformation behavior in compression and constitutive equation of 4032 aluminium alloy [J]. Hot Working Technology, 2013, 42(7): 34-39.

[9]史瑱. 4032铝合金高温变形行为及涡旋盘精密模锻数值模拟[D].哈尔滨: 哈尔滨工业大学, 2010.

Shi Z. High Temperature Deformation Behavior and Numerical Simulation on Precision Die Forging for Scroll of 4032 Aluminum Alloy[D]. Harbin: Harbin Institute of Technology, 2010.

[10]汪大年. 金属塑性成形原理[M]. 北京:机械工业出版社,1982.

Wang D N. Principles of Metal Plastic Forming[M]. Beijing: China Machine Press, 1982.

[11]谢懿.实用锻压技术手册[M].北京: 机械工业出版社, 2003.

Xie Y. Practical Forging Technical Manual[M]. Beijing: China Machine Press,2003.

服务与反馈：

【文章下载】【加入收藏】