Transactions of Materials and Heat Treatment

Title：Research on structural reliability for AC servo plastic connection equipment used in friction assisted clinching

Authors： Zhang Peng Zhao Shengdun Zhang Jiaying Fei Liangyu Wang Wenwen Lu Mengkang Chen Zheng

Unit： Xi′an Jiaotong University First Institute Nuclear Power Institute of China Xi′an Wuhua Juneng Blasting Equipment Co. Ltd.

KeyWords： friction assisted clinching plastic connection AC servo ANSYS Workbench static analysis modal analysis

ClassificationCode：TG439.8

year,vol(issue):pagenumber：2022,47(2):145-151

Abstract：

In order to improve the connection quality of low-plasticity and lightweight sheet joints, reduce the forming force and avoid causing crack defects during the connection process, the friction assisted clinching (FAC) plastic connection process was proposed, and the AC servo plastic connection equipment was designed. Then, the statics analysis of fuselage for the equipment was conducted by software ANSYS Workbench to check its stiffness and strength, and the vibration response characteristics of the equipment were studied by modal analysis. The results show that the movement of each degree of freedom for the equipment is driven and controlled by a separate AC servo motor, the transmission chain is short and the structure is compact, and the main shaft can provide 120 kN down force. For the fuselage, its maximum deformation amount in the vertical direction is 0.074 mm, and its maximum cumulative deformation amount is 0.16 mm, while its maximum deformation amount in the horizontal direction is 0.011 mm, and its maximum cumulative deformation amount is 0.38 mm, so the strength and stiffness of the fuselage meet the requirements of FAC plastic connection process. Furthermore, the low-order modal frequencies of the fuselage avoid the working frequencies of equipment, motor and reducer, the vibration is stable during the working process of the equipment, and no resonance phenomenon occurs. Finally, the FAC connection test of aluminum alloy sheet was conducted on the equipment. And the back surface of the joint obtained for aluminum alloy sheet by the FAC connection process is smooth and flat which proves the structure and function of the designed AC servo plastic connection equipment can meet the requirements of the FAC plastic connection process.

Funds：

国家自然科学基金面上项目（51675414）；陕西省自然科学基础研究计划企业联合基金（2019JLP-06）；国家重点研发计划“智能农机装备”重点专项（2017YFD0700200）

作者简介：张鹏（1990-），男，博士研究生,E-mail：czzpzhang@163.com;通信作者：赵升吨(1962-)，男，博士，教授，博士生导师,E-mail：sdzhao@mail.xjtu.edu.cn

Reference：

[1]韩晓兰, 陈超, 刘辰,等. 双层板材平底无铆塑性连接的抗拉强度预测模型[J]. 机械工程学报, 2018, 54(24):75-82.

Han X L, Chen C, Liu C, et al. Predictive model of tensile strength in flat clinching[J]. Journal of Mechanical Engineering, 2018, 54(24):75-82.

[2]Xing B Y, He X C, Wang Y Q, et al. Study of mechanical properties for copper alloy H62 sheets joined by self-piercing riveting and clinching[J]. Journal of Materials Processing Technology, 2015, 216(1): 28-36.

[3]王志勇, 韩善灵, 卢翔. 汽车车身轻量化材料无铆冲压连接技术的研究进展[J]. 热加工工艺, 2019,48(17):5-10,4.

Wang Z Y, Han S L, Lu X. Research progress of clinching technology for lightweight automobile body materials[J]. Hot Working Technology, 2019,48(17):5-10,4.

[4]Peng H, Chen C, Zhang H Y, et al. Recent development of improved clinching process[J]. International Journal of Advanced Manufacturing Technology, 2020, 110(11-12):1-31.

[5]王希靖, 张亚州, 张忠科,等. 铝/钢无匙孔搅拌摩擦点焊焊接性分析[J]. 焊接学报, 2015, 36(1):1-4.

Wang X J, Zhang Y Z, Zhang Z K, et al. Welding analyses of friction stir spot welding without keyhole between aluminum alloy and zinc-coated steel[J]. Transactions of the China Welding Institution, 2015, 36(1):1-4.

[6]韩晓兰, 赵升吨, 徐凡,等. 一种轻量化板材的激光加热平底无铆连接成形装置及工艺[P]. 中国：CN201710927245.2, 2018-02-15.

Han X L, Zhao S D, Xu F, et al. A laser assisted clinching device and process for lightweight metal sheet[P].China： CN201710927245.2，2018-02-15.

[7]韩善灵, 吴义伟, 林超, 等. 基于TRIZ理论的镁合金自冲铆接加热装置虚拟设计[J]. 机械科学与技术, 2014, 33(4):610-613.

Han S L, Wu Y W, Lin C, et al. The virtual design of self-pierce riveting device for magnesium alloy based on TRIZ[J]. Mechanical Science and Technology for Aerospace Engineering, 2014, 33(4):610-613.

[8]Osten J, Sllig P, Reich M, et al. Softening of high-strength steel for laser assisted clinching[J]. Advanced Materials Research, 2014, 966-967:617-627.

[9]Reich M, Osten J, Milkereit B, et al. Short-time heat treatment of press hardened steel for laser assisted clinching[J]. Materials Science and Technology, 2014, 30(11):1287-1296.

[10]Zhang Y, Shan H, Li Y, et al. Effects of the oxide film on the spot joining of aluminum alloy sheets: A comparative study between resistance spot welding and resistance spot clinching[J]. International Journal of Advanced Manufacturing Technology, 2017, 92(9-12): 4231-4240.

[11]庄蔚敏, 赵文增, 解东旋,等. 22MnB5高强钢/7075铝合金热铆接冷模具淬火无铆钉铆接研究[J]. 机械工程学报, 2017, 53(20):106-112.

Zhuang W M, Zhao W Z, Xie D X, et al. Research on hot riveting quenching clinching of the high strength steel 22MnB5 and aluminum alloy 7075[J]. Journal of Mechanical Engineering, 2017, 53(20):106-112.

[12]杜越, 王明星,刘忠侠, 等.摩擦加热AZ31镁合金板材的自冲铆接[J]. 热加工工艺, 2011, 40(15):152-156.

Du Y, Wang M X, Liu Z X, et al. Self-piercing riveting of friction-heated AZ31 alloy sheet[J]. Hot Working Technology, 2011, 40(15):152-156.

[13]赵升吨, 贾先. 智能制造及其核心信息设备的研究进展及趋势[J]. 机械科学与技术, 2017, 36(1):1-16.

Zhao S D, Jia X. Research progress and development trend of intelligent manufacturing and its core information equipment[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(1):1-16.

[14]Chen C, Zhao S D, Han X L,et al. Investigation of flat clinching process combined with material forming technology for aluminum alloy[J]. Materials, 2017, 10(12):1433.

[15]Chen C, Zhao S D, Cui M C, et al. An experimental study on the compressing process for joining Al6061 sheets[J]. Thin-Walled Structures, 2016, 108:56-63.

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