Rivet Optimization and Experimental Research on the Reshaping Method

doi:10.7652/xjtuxb201603015

您当前的位置：

首页 >

文章列表页 >

Rivet Optimization and Experimental Research on the Reshaping Method

更新时间：2025-07-09

- Rivet Optimization and Experimental Research on the Reshaping Method
- Vol. 50, Issue 3, Pages: 94-100(2016)
- 作者机构：
  
  西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201603015
  CLC： TG306
- Online First：10 March 2016，
  
  Published：2016
- 稿件说明：
移动端阅览
Rivet Optimization and Experimental Research on the Reshaping Method[J]. 2016, 50(3): 94-100.
DOI：

Rivet Optimization and Experimental Research on the Reshaping Method[J]. 2016, 50(3): 94-100. DOI： 10.7652/xjtuxb201603015.

摘要

为解决传统机械变形压力连接存在较高凸起的问题并增加连接强度

提出了一种采用特制铆钉的铆压重塑形工艺。该工艺在无铆连接工艺后将铆钉置于连接点的凹坑内

然后压缩凸起处使凸起高度降低。采用DEFORM-2D软件对铆压重塑形工艺进行有限元分析

得到了连接点的最大拉伸强度; 采用正交试验方法对铆钉尺寸进行了设计优化

得到了能实现最大拉伸强度的铆钉尺寸。在铆压重塑形试验中

连接点的凸起高度从1.6 mm降低到了1.1 mm; 平均拉伸强度从950.6 N提高到1 130.7 N

即重塑形后的拉伸强度比重塑形前提高了18.9%; 平均剪切强度从1 168.6 N提高到2 636.1 N

即重塑形后的剪切强度比重塑形前提高了125.6%。由此证明

铆压重塑形工艺可有效降低凸起高度

并且能提高连接点的强度。

Abstract

The application of conventional mechanical clinching in automotive industry is restricted because of the exterior protrusion. In order to reduce the protrusion height and increase the strength of clinched joint

a new rivet-reshaping process was proposed to reshape the clinched joint in this study. The rivet was embedded in the pit of the joint after the conventional mechanical clinching and then the protrusion was compressed to reduce the protrusion height. The maximum tensile strength of the clinched joint was obtained by finite element simulation using the software DEFORM-2D. The geometrical parameters of the reshaped rivet with maximum tensile strength were acquired by optimization using orthogonal design. In the experiment

the protrusion height of the reshaped joints was reduced from 1.6 to 1.1 mm. The average tensile strength of the reshaped joints was increased from 950.6 to 1 130.7 N

i.e. the average tensile strength was increased by 18.9% compared with the clinched joints before reshaping; and the average shear strength of the reshaped joints was increased from 1 168.6 to 2 636.1 N

i.e. the average shear strength was increased by 125.6% compared with the clinched joint before reshaping. It was proved that the reshaping method can reduce the protrusion height and increase the strength of clinched joint effectively.

关键词

Keywords

references

景艳, 赵培全, 何平. 汽车新材料的应用: 轻量化 [J]. 现代制造技术与装备, 2007(1): 75-78.

JING Yan, ZHAO Peiquan, HE Ping. The application of new materials on vehicles: tendency of light quality [J]. Modern Manufacturing Technology and Equipment, 2007(1): 75-78.

LAMBIASE F. Influence of process parameters in mechanical clinching with extensible dies [J]. International Journal of Advanced Manufacturing Technology, 2013, 66(9/10/11/12): 2123-2131.

PAULA A, AGUILAR M, PERENCE A, et al. Finite element simulations of the clinch joining of metallic sheets [J]. Journal of Materials Processing Technology, 2007, 182(1/2/3): 352-357.

MUCHA J, WITKOWSKI W. The clinching joints strength analysis in the aspects of changes in the forming technology and load conditions [J]. Thin-Walled Structures, 2014, 82: 55-66.

徐凡. 板材无铆钉连接的塑性变形机理及损伤演化机制研究 [D]. 西安: 西安交通大学, 2014.

杨慧艳, 何晓聪, 邓成江, 等. 铜-铝异种金属板压印连接与接头拉剪载荷研究 [J]. 中国机械工程, 2014, 25(19): 2669-2673.

YANG Huiyan, HE Xiaocong, DENG Chengjiang, et al. Study on clinch joining for Cu/Al alloy sheets and mechanical properties of joints [J]. China Mechanical Engineering, 2014, 25(19): 2669-2673.

杨慧艳, 何晓聪, 丁燕芳, 等. 铝合金压印接头的强度研究 [J]. 应用力学学报, 2014, 31(2): 299-304.

YANG Huiyan, HE Xiaocong, DING Yanfang, et al. Analytical models and experimental studies on clinched joints in aluminium alloy [J]. Chinese Journal of Applied Mechanics, 2014, 31(2): 299-304.

郑俊超, 何晓聪, 邢保英, 等. 分体式下模压印接头成形的有限元模拟及接头微观组织 [J]. 机械工程材料, 2013, 37(9): 79-83.

ZHENG Junchao, HE Xiaocong, XING Baoying, et al. Finite element simulation of segmented die clinched joint deformation and microstructure of joint [J]. Materials for Mechanical Engineering, 2013, 37(9): 79-83.

田恒宇. 压力连接质量监控系统的研究与开发 [D]. 广州: 华南理工大学, 2014.

郭俊行. 金属板料塑性成形过程损伤演化与韧性断裂机制的研究 [D]. 西安: 西安交通大学, 2013.

WEN T, WANG H, YANG C, et al. On a reshaping method of clinched joints to reduce the protrusion height [J]. International Journal of Advanced Manufacturing Technology, 2014, 71: 1709-1715.

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Windage Loss and Flow Characteristics in Impeller Back Gaps of sCO2 Radial Inflow Turbines

Numerical Simulation of the Energy Conversion Process in Thermoacoustic Engines with Different Stack Materials

Study on the Thermodynamic Properties in the Anomalous Region of Supercritical Water

Energy Efficiency Optimization of the Cryogenic Air Separation Process for Electronic-Grade Ultra Pure Nitrogen

Knowledge Graph Representation Learning Driven by Semantic Discrimination and Subgraph Integration

Related Author

No data

Related Institution

No data

⁰