AA6061⁃T6铝薄板无针搅拌摩擦点焊接头结构及性能分析

doi:10.13229/j.cnki.jdxbgxb.20210937

Abstract

Abstract:

The effect of welding parameters on the tensile-shear mechanical properties and the fracture modes of probeless friction stir spot welding（PFSSW） joints was analyzed by Box-Behnken test design. The base material is 1.5 mm thick AA6061-T6 aluminum thin plate， which is commonly used in automobile body coverings. The tensile shear performance of PFSSW joints was optimized by response surface methodology（RSM）. The results show that the metallographic structure of PFSSW joint is basin-shaped. The maximum tensile-shear failure load（TSFL） of 6.41 kN was obtained with the rotating speed of 2950 r/min， the plunging depth of 0.6 mm and the dwell time of 7 s. There are three types of PFSSW joint fracture modes. Among them， the nugget pull-out mode exhibited the highest average failure load（6.26 kN）， interface separation mode was the lowest（4.89 kN） and mixed-mode was in the middle（5.60 kN）.

Key words: vehicle engineering, probeless friction stir spot welding, tensile-shear failure load, parameters optimization, microstructure, fracture morphology

CLC Number:

U465.2

Gui-shen YU,Xin CHEN,Zi-tao WU,Yi-xiong CHEN,Guan-chen ZHANG. Analysis of microstructure and mechanical properties of probeless friction stir spot welding joint in AA6061⁃T6 aluminum thin plate[J].Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1338-1344.

Figures/Tables 11

Fig.1

Fig.2

Table 1

Fig.3

Fig.4

Table 2

Table 3

Fig.5

Fig.6

Fig.7

Fig.8

References 16

1	Paidar M, Ramalingam V V, Moharrami A, et al. Development and characterization of dissimilar joint between AA2024-T3 and AA6061-T6 by modified friction stir clinching process[J]. Vacuum, 2020, 176: 109298.
2	聂昕, 朱伟强, 蔡洪丰, 等.基于焊点载荷的焊接工艺参数优化[J].焊接学报,2018,39(5):114-120, 134.
	Nie Xin, Zhu Wei-qiang, Cai Hong-feng, et al. Optimization of resistance spot welding parameters based on load of welding spot[J]. Transactions of the China Welding Institution, 2018, 39(5): 114-120, 134.
3	Zhang B, Chen X, Pan K, et al. J-integral based correlation evaluation between microstructure and mechanical strength for FSSW joints made of automotive aluminum alloys[J]. Journal of Manufacturing Processes, 2019, 44: 62-71.
4	Zhang B, Chen X, Pan K, et al. Thermo-mechanical simulation using microstructure-based modeling of friction stir spot welded AA 6061-T6[J]. Journal of Manufacturing Processes, 2019, 37: 71-81.
5	陈鑫, 潘凯旋, 张彪, 等. 搅拌摩擦点焊瞬态输入组合热源模型[J]. 吉林大学学报: 工学版, 2020, 50(4): 1316-1323.
	Chen Xin, Pan Kai-xuan, Zhang Biao, et al. Transient input combined heat source model of friction stir spot welding[J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(4): 1316-1323.
6	Ikumapayi O M, Akinlabi E T. Recent advances in keyhole defects repairs via refilling friction stir spot welding[J]. Materials Today-Proceedings, 2019, 18: 2201-2208.
7	Suryanarayanan R, Sridhar V. Effect of process parameters in pinless friction stir spot welding of Al 5754-Al 6061 alloys[J]. Metallography, Microstructure, Analysis, 2020, 9(2): 261-272.
8	Li W Y, Chu Q, Yang X W, et al. Microstructure and morphology evolution of probeless friction stir spot welded joints of aluminum alloy[J]. Journal of Materials Processing Technology, 2018, 252: 69-80.
9	Chu Q, Yang X W, Li W Y, et al. Impact of surface state in probeless friction stir spot welding of an Al-Li alloy[J]. Science and Technology of Welding and Joining, 2019, 24(3): 200-208.
10	Chu X, Yin M, Gao J, et al. Effects of shoulder geometry on microstructures and mechanical properties of probeless friction stir spot welded aluminum 7075-T651 sheets[J]. Metals, 2020, 10(12): 10121605.
11	Atak A. Impact of pinless stirring tools with different shoulder profile designs on friction stir spot welded joints[J]. Journal of Mechanical Science and Technology, 2020, 34(9): 3735-3743.
12	Yazdi S R, Beidokhti B, Haddad-Sabzevar M. Pinless tool for FSSW of AA 6061-T6 aluminum alloy[J]. Journal of Materials Processing Technology, 2019, 267: 44-51.
13	Zhang Z, Yu Y, Zhao H, et al. Interface behavior and impact properties of dissimilar Al/Steel keyhole-free FSSW joints[J]. Metals, 2019, 9(6): 9060691.
14	宫文彪, 朱芮, 郄新哲, 等. 6082铝合金超厚板搅拌摩擦焊接头组织与性能[J]. 吉林大学学报: 工学版, 2020, 50(2): 512-519.
	Gong Wen-biao, Zhu Rui, Xin-zhe Qie, et al. Microstructure and properties of 6082 aluminum alloy ultra-thick plate preparated by friction stir weld[J]. Journal of Jilin University(Engineering and Technology Edition), 2020, 50(2): 512-519.
15	Zhou L, Luo L Y, Zhang T P, et al. Effect of rotation speed on microstructure and mechanical properties of refill friction stir spot welded 6061-T6 aluminum alloy[J]. International Journal of Advanced Manufacturing Technology, 2017, 92(9-12): 3425-3433.
16	邹阳帆, 王非凡, 李文亚, 等. 不等厚2219铝合金板回填式搅拌摩擦点焊接头组织及性能研究[J]. 机械工程学报, 2020, 56(6): 176-183.
	Zou Yang-fan, Wang Fei-fan, Li Wen-ya, et al. Study on microstructure and properties of refill friction stir spot welding joints of 2219 aluminum alloy with different thickness[J]. Journal of Mechanical Engineering, 2020, 56(6): 176-183.

Related Articles 15

[1]	Lei CHEN,Yang WANG,Zhi-sheng DONG,Ya-qi SONG. A vehicle agility control strategy based on steering intent [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1257-1263.
[2]	Xin CHEN,Guan-chen ZHANG,Kang-ming ZHAO,Jia-ning WANG,Li-fei YANG,De-rong SITU. Influence of lap welds on the lightweight design of welded aluminum structures [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1282-1288.
[3]	Yong ZHANG,Feng-zhao MAO,Shui-chang LIU,Qing-yu WANG,Shen-gong PAN,Guang-sheng ZENG. Optimization on distortion grid of vehicle external flow field based on Laplacian Algorithm [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1289-1296.
[4]	Shao-hua WANG,Kun CHU,De-hua SHI,Chun-fang YIN,Chun LI. Robust compound coordinated control of HEV based on finite⁃time extended state observation [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1272-1281.
[5]	Chao XIE,Qi-cai WANG,Ben-tian YU,Sheng LI,Xiao-xu LIN,Zhi-ming LU. Determination of elastic modulus by atomic force microscopy and microstructure analysis for polyurethane coating film [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1322-1330.
[6]	Di WU,Wen-hua GENG,Hong-mei LI,Da-qian SUN. Electron backscattered diffraction analysis on interface of aluminum/steel joints produced by plasma arc welding⁃brazing [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(5): 1331-1337.
[7]	Xiao-bo CHEN,Ling CHEN. Variational Bayesian cooperative target tracking with unknown localization noise statistics [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(4): 1030-1039.
[8]	Rui ZHAO,Yun LI,Hong-yu HU,Zhen-hai GAO. Vehicle collision warning method at intersection based on V2I communication [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(4): 1019-1029.
[9]	Hong-bo YANG,Wen-ku SHI,Zhi-yong CHEN,Nian-cheng GUO,Yan-yan ZHAO. Multi⁃objective optimization of macro parameters of helical gear based on NSGA⁃Ⅱ [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(4): 1007-1018.
[10]	Ke HE,Hai-tao DING,Nan XU,Kong-hui GUO. Enhanced localization system based on camera and lane markings [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(3): 663-673.
[11]	Bing ZHU,Tian-xin FAN,Jian ZHAO,Pei-xing ZHANG,Yu-hang SUN. Accelerate test method of automated driving system based on hazardous boundary search [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(3): 704-712.
[12]	Yan-tao TIAN,Yan-shi JI,Huan CHANG,Bo XIE. Deep reinforcement learning augmented decision⁃making model for intelligent driving vehicles [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(3): 682-692.
[13]	Jian ZHANG,Jin-bo LIU,Yuan GAO,Meng-ke LIU,Zhen-hai GAO,Bin YANG. Localization algorithm of vehicular sensor based on multi⁃mode interaction [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(3): 772-780.
[14]	Ke HE,Hai-tao DING,Xuan-qi LAI,Nan XU,Kong-hui GUO. Wheel odometry error prediction model based on transformer [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(3): 653-662.
[15]	Yan-ran LIU,Qing-yu MENG,Hong-yan GUO,Jia-lin LI. Vehicle trajectory prediction combined with high definition map in graph attention mode [J]. Journal of Jilin University(Engineering and Technology Edition), 2023, 53(3): 792-801.

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

焊接参数	符号	参数水平
焊接参数	符号	低（-1）	中（0）	高（-1）
转速/（r·min^-1）	RS	2500	3000	3500
下压量/mm	PD	0.3	0.5	0.7
停留时间/s	DT	5	7	9

编号	编码值			实际值			TSFL /kN
编号	RS	PD	DT	RS/（r·min^-1）	PD/mm	DT/s	TSFL /kN
1^#	0	1	1	3000	0.7	9	5.99
2^#	1	-1	0	3500	0.3	7	5.09
3^#	-1	0	1	2500	0.5	9	5.35
4^#	-1	0	-1	2500	0.5	5	6.15
5^#	0	1	-1	3000	0.7	5	5.97
6^#	-1	-1	0	2500	0.3	7	5.09
7^#	0	-1	-1	3000	0.3	5	5.30
8^#	1	0	1	3500	0.5	9	5.66
9^#	0	0	0	3000	0.5	7	6.50
10^#	1	0	-1	3500	0.5	5	5.01
11^#	0	-1	1	3000	0.3	9	4.41
12^#	-1	1	0	2500	0.7	7	5.73
13^#	0	0	0	3000	0.5	7	6.24
14^#	0	0	0	3000	0.5	7	6.47
15^#	0	0	0	3000	0.5	7	6.08
16^#	1	1	0	3500	0.7	7	5.96
17^#	0	0	0	3000	0.5	7	6.17

方差来源	自由度	均方	F值	P值
总和	16	-	-	-
模型	9	0.56	9.59	0.003
RS	1	0.04	0.77	0.41
PD	1	1.77	30.09	0.001
DT	1	0.13	2.21	0.18
RS×PD	1	0.52	8.77	0.021
RS×DT	1	0.95	16.16	0.005
PD×DT	1	0.67	11.45	0.012
RS²	1	0.01	0.23	0.65
PD²	1	0.53	8.95	0.02
DT²	1	0.21	3.52	0.103
残差	7	0.06	-	-
失拟项	3	0.09	2.65	0.185
纯误差	4	0.03	-	-

Analysis of microstructure and mechanical properties of probeless friction stir spot welding joint in AA6061⁃T6 aluminum thin plate

RICH HTML

PDF (PC)