Transactions of Materials and Heat Treatment

Title：Stamping process on power supply cage for brushless DC motor rotor

Authors： Huang Ke Liu Jiang Ding Renhua Ma Xuefeng

Unit： Changzhou Vocational Institute of Mechatronic Technology

KeyWords： stamping process brushless DC motor power supply cage of rotor bending springback orthogonal test DEFORM-3D

ClassificationCode：TG386

year,vol(issue):pagenumber：2018,43(10):76-83

Abstract：

The manufacturing process of power supply cage for brushless DC motor rotor was divided into seven steps, namely, process 1 blanking, process 2 bending, process 3 bending, process 4 punching, process 5 forming, process 6 flanging and process 7 tapping, and the feasibility of process 2 bending was analyzed by the finite element simulation software DEFORM3D. The results show that no fracture and other adverse phenomena during the bending process occur. Then, the process parameters of process 2 bending were optimized by the orthogonal test, and the smallest springback of workpiece is obtained with the punching speed of 2.2 mm·s-1, the die clearance of 0.02 mm, the friction coefficient of 0.16 and the die fillet radius of 1.0 mm. Furthermore, the springback of power supply cage for rotor is controlled effectively by compensating the surface of bending die, and the best effect of the process 2 bending is 1.02 times the compensation value. Under the action of the optimal combination of process parameters and combining the compensating of bending die surface, the springback of point P1, point P2 and point P3 are 0.28, 0.23 and 0.08 mm respectively. Finally, the tests were conducted, and the experiment results are similar to the simulation results.

Funds：

常州机电职业技术学院院级课题（2017-zdkj-02）；常州市工业机器人系统集成技术重点实验室（CM20153002）；江苏省高等职业教育高水平骨干专业建设项目（苏教高【2017】17号）

黄可（1987-），男，学士，实验师，E-mail：244193480@qq.com

Reference：

[1]胡晓，刁可山，李雷.Dynaform与Autoform在铝板冲压成形模拟中的比较[J].塑性工程学报，2017，24 (3): 31-35.

Hu X，Diao K S，Li L.Comparison of Dynaform with Autoform in the simulation of aluminum sheet stamping[J].Journal of Plasticity Engineering，2017，24 (3): 31－35.

[2]刘健光，刘风雷，刘华东，等. 钛合金球形头骨钉镦锻加工工艺流程及性能研究[J].锻压技术，2016，41（12）：8-13.

Liu J G，Liu F L，Liu H D，et al. Study on upsetting process and property for titanium alloy spherical bone screws [J]. Forging & Stamping Technology，2016，41（12）：8-13.

[3]Lee T C，Chan L C，Wu B J.Further investigation of the fine-blanking process employing large deformation theory[J].Journal of Materials Processing Technology，1997，66(1-3): 258-263.

[4]Kwak T S，Kim Y J，Bae W B.Finite element analysis on the effect of die clearance on shear planes in fine blanking[J].Journal of Materials Processing Technology，2002，130-131: 462-468.

[5]胡成武，张浩，王镇柱，等.冷轧深冲板塑性应变比和屈服应力的理论计算及试验验证[J].塑性工程学报，2017，24 (2):40-45.

Hu C W，Zhang H，Wang Z Z，et al.Theoretical calculation and experimental verification of plastic strain ratio and yield stress of cold rolled deep drawing sheet[J].Journal of Plasticity Engineering，2017，24 (2): 40-45.

[6]谷诤巍，吕萌萌，张文学，等.中国标准动车组前端三维蒙皮件冲压成形[J].吉林大学学报: 工学版，2017，47 (3): 869-875.

Gu Z W，Lyu M M，Zhang W X，et al.Stamping of front-end three-dimensional skin of China electric multiple units[J].Journal of Jilin University: Engineering and Technology Edition，2017，47 (3): 869-875.

[7]阮诗颂,王渊明,裴永生.三维曲面网状冲压件逆向建模的研究[J].锻压技术,2018，43(2)：182-185.

Ruan S S,Wang Y M, Pei Y S. Research on reverse modeling of 3D curved mesh stamping part[J].Forging & Stamping Technology,2018,43(2)：182-185.

[8]苟春梅，吴民，董静，等.汽车冲压件工艺参数优化及回弹控制[J].锻压技术，2018，43(2)：34-37.

Gou C M, Wu M, Dong J, et al. Process parameter optimization and springback control of automotive stamping parts[J].Forging & Stamping Technology,2018,43(2)：34-37.

[9]吴磊,姜建雨,俞亚新.基于Dynaform的弹簧座多工序冲压成形工艺设计及数值模拟[J].锻压技术,2018，43(1):41-45.

Wu L，Jiang J Y，Yu Y X. Design on multi-step stamping forming process and numerical simulation for spring seat based on Dynaform[J].Forging & Stamping Technology,2018,43(1)：41-45.

[10]王朋驹，成虹.冲压模具设计师手册[M]. 北京:机械工业出版社,2008.

Wang P J，Cheng H.Handbook of Stamping Die Designers[M]. Beijing:China Machine Press，2008.

[11]胡世光.板料冷压成形原理[M].北京:国防工业出版社，1979.

Hu S G. Sheet Metal Cold Forming Principle[M]. Beijing: National Defense Industry Press，1979.

[12]莫惟高.铝合金板温成形中的摩擦理论与实验研究[D].南昌:南昌航空大学，2007.

Mo W G. Experimental Study on Warming Forming Friction Theory of Aluminium Alloy[D].Nanchang:Nanchang Hangkong University,2007.

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