汽车铝合金板材平压整形无铆连接技术的研究

doi:10.3901/JME.2017.18.042

机械工程学报 ›› 2017, Vol. 53 ›› Issue (18): 42-48.doi: 10.3901/JME.2017.18.042

汽车铝合金板材平压整形无铆连接技术的研究

陈超¹, 赵升吨¹, 崔敏超¹, 韩晓兰¹, 赵旭哲², 范淑琴¹

1. 西安交通大学机械工程学院西安 710049;
2. 普渡大学工程技术学院西拉法叶 47907 美国

收稿日期:2016-09-24 修回日期:2017-05-25 出版日期:2017-09-20 发布日期:2017-09-20
作者简介:陈超,男,1990年出生,博士研究生.主要研究方向为塑性成形工艺及设备.E-mail:science_chen@163.com
基金资助:
国家自然科学基金（51305333，51675414）和陕西省科学技术研究发展计划工业攻关计划（2014K07-23）资助项目。

Study on the Flat-reshaping Technology with No Rivet for Joining Aluminium Alloy Sheet of the Automobile

CHEN Chao¹, ZHAO Shengdun¹, CUI Minchao¹, HAN Xiaolan¹, ZHAO Xuzhe², FAN Shuqin¹

1. School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049;
2. School of Engineering Technology, Purdue University, West Lafayette, 47907 USA

Received:2016-09-24 Revised:2017-05-25 Online:2017-09-20 Published:2017-09-20

摘要/Abstract

摘要： 无铆连接技术在汽车铝合金板材的连接领域得到了广泛应用。但是，无铆连接技术在连接点处产生的较高的凸起又制约了这项技术的发展。为了降低连接点的凸起高度，提出一种适用于汽车铝合金板材的平压整形无铆连接技术。通过分瓣式模具和平滑模具产生平压整形无铆连接点，对无铆连接点进行拉伸试验。通过拉伸试验得到无铆连接点的拉伸强度、能量吸收和失效模式等重要参数，并对连接点的颈厚值和凸起高度进行分析。研究表明，平压整形无铆连接技术可有效提高连接点的强度和能量吸收能力。断裂失效是平压整形无铆连接点的主要失效模式。此外，平压整形无铆连接技术在降低凸起高度的过程中可增加颈厚值，从而增加连接点强度。

关键词: 颈厚值, 铝合金板材, 平压整形, 凸起, 无铆连接

Abstract: The mechanical clinching technology has been widely used in the joining of aluminium alloy sheet of the automobile. However, the development of this technology is restricted by the high protrusion above the clinched joint. A flat-reshaping method which is used to join the aluminium alloy sheet of the automobile is proposed to reduce the protrusion height. The flat-reshaped joint is produced by extensible dies and flat dies, then the tensile test is carried out on the clinched joint. The tensile strength, energy absorption and failure mode are gotten by the tensile test. The neck thickness and protrusion height are also analyzed. The results show that the flat-reshaping method can increase the strength and energy absorption of the joint. Neck fracture mode is the main failure mode of the flat-reshaped joint. In addition, the neck thickness can be enlarged to increase the strength of joint with a reduction of the protrusion height by the flat-reshaping method.

Key words: aluminium alloy sheet, flat-reshaping, mechanical clinching, neck thickness, protrusion

中图分类号:

TG376

陈超, 赵升吨, 崔敏超, 韩晓兰, 赵旭哲, 范淑琴. 汽车铝合金板材平压整形无铆连接技术的研究[J]. 机械工程学报, 2017, 53(18): 42-48.

CHEN Chao, ZHAO Shengdun, CUI Minchao, HAN Xiaolan, ZHAO Xuzhe, FAN Shuqin. Study on the Flat-reshaping Technology with No Rivet for Joining Aluminium Alloy Sheet of the Automobile[J]. Journal of Mechanical Engineering, 2017, 53(18): 42-48.

参考文献

[1] 刘棵, 兰凤崇, 周云郊, 等. 板材压力连接的强度数值模拟与实验研究[J]. 机械设计与制造, 2014(1):11-14. LIU Ke, LAN Fengchong, ZHOU Yunjiao, et al. Numerical simulation and experimental study on strength of clinched connections for steel sheets[J]. Machinery Design & Manufacture, 2014(1):11-14.
[2] JIANG T, LIU Z X, WANG P C. Effect of aluminum pre-straining on strength of clinched galvanized SAE1004 steel-to-AA6111-T4 aluminum[J]. Journal of Materials Processing Technology, 2015, 215:193-204.
[3] LAMBIASE F. Joinability of different thermoplastic polymers with aluminium AA6082 sheets by mechanical clinching[J]. The International Journal of Advanced Manufacturing Technology, 2015, 80(9):1995-2006.
[4] 石柏军, 李航, 彭松, 等. 加热温度对AZ31镁合金薄板压力连接接头性能的影响[J]. 机械工程材料, 2013, 37(12):27-30, 34. SHI Baijun, LI Hang, PENG Song, et al. Effect of heating temperature on clinching joint of AZ31 magnesium sheets[J]. Materials for Mechanical Engineering, 2013, 37(12):27-30, 34.
[5] 王医峰, 何晓聪, 曾凯, 等. TA1/AA5052压印接头力学性能研究与断口分析[J]. 热加工工艺, 2015, 44(13):13-16. WANG Yifeng, HE Xiaocong, ZENG Kai, et al. Study on mechanical property and fracture analysis of clinching joint for TA1/AA5052[J]. Hot Working Technology, 2015, 44(13):13-16.
[6] ZHAO S D, XU F, GUO J H, et al. Experimental and numerical research for the failure behavior of the clinched joint using modified Rousselier model[J]. Journal of Materials Processing Technology, 2014, 214(10):2134-2145.
[7] HE X C, ZHANG Y, XING B Y, et al. Mechanical properties of extensible die clinched joints in titanium sheet materials[J]. Materials and Design, 2015, 87:606-618.
[8] 陈超, 赵升吨, 韩晓兰, 等. 轻质合金无铆塑性连接方式及其关键技术的探讨[J]. 锻压技术, 2016, 41(1):1-5. CHEN Chao, ZHAO Shengdun, HAN Xiaolan, et al. Discussion on mechanical clinching type and its key technology for light-weight alloy[J]. Forging & Stamping Technology, 2016, 41(1):1-5.
[9] WEN T, WANG H, YANG C, et al. On a reshaping method of clinched joints to reduce the protrusion height[J]. The International Journal of Advanced Manufacturing Technology, 2014, 71(9):1709-1715.
[10] 陈超, 赵升吨, 崔敏超, 等. 铆压重塑形工艺的铆钉优化与试验研究[J]. 西安交通大学学报, 2016, 50(3):94-100. CHEN Chao, ZHAO Shengdun, CUI Minchao, et al. Rivet optimization and experimental research on the reshaping method[J]. Journal of Xi'an Jiaotong University, 2016, 50(3):94-100.
[11] LAMBIASE F, DI ILIO A. Finite element analysis of material flow in mechanical clinching with extensible dies[J]. Journal of Materials Engineering and Performance, 2013, 22:1629-1636.
[12] YANG H Y, HE X C, WANG Y Q. Analytical model for strength of clinched joint in aluminium alloy sheet[J]. Applied mechanics and materials, 2013, 401:578-581.

汽车铝合金板材平压整形无铆连接技术的研究

Study on the Flat-reshaping Technology with No Rivet for Joining Aluminium Alloy Sheet of the Automobile

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 2

编辑推荐

Metrics

本文评价

[1]	杨卓云, 赵长财, 董国疆, 陈光, 朱良金, 杜冰. 基于Lou-2013韧性断裂准则5182铝板成形极限研究[J]. 机械工程学报, 2019, 55(16): 47-57.
[2]	王海斗;朱丽娜;徐滨士. 纳米压痕法测量等离子喷涂铁基涂层[J]. , 2013, 49(7): 1-4.