基于灰色关联的DP1180/DP590异质点焊接头工艺参数优化

doi:10.13229/j.cnki.jdxbgxb20170501

吉林大学学报(工学版) ›› 2018, Vol. 48 ›› Issue (4): 1147-1152.doi: 10.13229/j.cnki.jdxbgxb20170501

基于灰色关联的DP1180/DP590异质点焊接头工艺参数优化

邱小明¹, 王银雪¹, 姚汉伟², 房雪晴³, 邢飞^1,4

1.吉林大学材料科学与工程学院,长春 130022;
2.长春三友汽车部件制造有限公司,长春 130033;
3.天津大学材料科学与工程学院,天津 300350;
4.吉林大学汽车仿真与控制国家重点实验室,长春 130022

收稿日期:2017-04-11 出版日期:2018-07-01 发布日期:2018-07-01
通讯作者: 邢飞(1987-),女,在站博士后.研究方向:先进高强钢连接.E-mail:xingfei@jlu.edu.cn
作者简介:邱小明(1964-),男,教授,博士生导师.研究方向:先进高强钢连接.E-mail:18204318903@163.com
基金资助:
吉林省科技发展计划“双十工程”重大科技成果转化项目(20140301007GX).

Multi-objective optimization of resistance spot welding parameters for DP1180/DP590 using grey relational analysis based Taguchi

QIU Xiao-ming¹, WANG Yin-xue¹, YAO Han-wei², FANG Xue-qing³, XING Fei^1,4

1.College of Materials Science and Engineering, Jilin University, Changchun 130022, China;
2.Sanyou Automobile Parts Manufacturing Company Limited, Changchun 130033, China;
3.College of Materials Science and Engineering, Tianjin University, Tianjin 300350,China;
4.State Key Laboratory of Automotive Simulation and Cortrol,Jilin University, Changchun 130022,China

Received:2017-04-11 Online:2018-07-01 Published:2018-07-01

摘要/Abstract

摘要： 以正交试验为基础,利用灰色关联度研究了不等厚异质点焊接头的多目标优化,通过极差分析得到以熔核直径、压痕率和最大拉剪力为衡量因子的最优参数,通过方差分析研究了各点焊参数对衡量因子的影响程度。结果表明:1.2 mm的DP1180和1.5 mm的DP590异质点焊接头最优工艺参数是:焊接电流为9.5 kA、焊接时间为22 cycles、电极压力为8.48 kN,此时点焊接头的熔核直径为6.76 mm、压痕率为17.70%、最大拉剪力为19.49 kN,在保证点焊接头强度的同时降低了压痕率。点焊参数对衡量因子影响的主次顺序为焊接电流、焊接时间和电极压力。

关键词: 材料合成与加工工艺, 灰色关联分析, 电阻点焊, 超高强钢, 多目标优化, 不等厚材料

Abstract: Based on Taguchi orthogonal test, the multi-objective optimization problem of dissimilar thickness DP1180/DP590 resistance spot welding was studied using grey relation analysis. The optimum parameters were derived by considering the responses such as nugget diameter, indentation rate and lower peak load by difference analysis. Analysis of variance (ANOVA) was used to analyze the effects of different parameters on the responses. Based on the results, welding current 9.5 kA, welding time 22 cycles and electrode force 8.48 kN evolved as the optimized parameters. Under the optimized parameters, the nugget diameter, indentation rate and peak load of the spot joint are 6.67 mm, 17.70% and 19.49 kN, respectively. The joint in with the optimized parameters ensures the strength and reduces the indentation rate. The influence degrees of the spot welding parameters on the measuring factors are in the order: welding current, welding time and electrode force.

Key words: materials synthesis and processing technology, gray relational analysis, resistance spot welding, ultra-high strength steel, multi-objective optimization, dissimilar thickness materials

中图分类号:

TG453.9

邱小明, 王银雪, 姚汉伟, 房雪晴, 邢飞. 基于灰色关联的DP1180/DP590异质点焊接头工艺参数优化[J]. 吉林大学学报(工学版), 2018, 48(4): 1147-1152.

QIU Xiao-ming, WANG Yin-xue, YAO Han-wei, FANG Xue-qing, XING Fei. Multi-objective optimization of resistance spot welding parameters for DP1180/DP590 using grey relational analysis based Taguchi[J]. 吉林大学学报(工学版), 2018, 48(4): 1147-1152.

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基于灰色关联的DP1180/DP590异质点焊接头工艺参数优化

Multi-objective optimization of resistance spot welding parameters for DP1180/DP590 using grey relational analysis based Taguchi

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