Spot welding between aluminium alloy and low-carbon steel by friction stirring

被引：15

作者：

Miyagawa, Katashi ^{[1
]}

Tsubaki, Masami ^{[1
]}

Yasui, Toshiaki ^{[1
]}

Fukumoto, Masahiro ^{[1
]}

机构：

[1] Toyohashi University of Technology, Toyohashi

来源：

Welding International | 2009年 / 23卷 / 08期

关键词：

Aluminium alloy; Dissimilar metals; Friction stirring; Low carbon steel; Spot welding;

D O I：

10.1080/09507110802543039

中图分类号：

学科分类号：

摘要：

The application of aluminium alloy, which is a typical lightweight material, has been expected in the construction of transportation vehicles to achieve energy saving by reduction of weight. However, structures made of whole aluminium alloy have problems with low strength and high cost. Thus, hybrid structures made of Al alloy and steel are useful because of light weight and higher strength. To construct the hybrid structure, it is necessary to weld aluminium alloy and steel. However, conventional welding methods, like brazing and mechanical fastening, have problems such as low mechanical strength and low productivity. Also, it is difficult to weld Al alloy and steel by conventional fusion welding. In this study, spot welding between aluminium alloy and low carbon steel by friction stirring was carried out. Especially, optimization in welding conditions was carried out. Moreover, the effect of welding conditions on the joint strength and weld interface was studied. As a result, relatively higher tensile shear strength of the weld, which was achieved at optimum welding conditions, was obtained. Temperature near weld interface measured by K-type thermocouple during welding was found to be lower than the melting point of A5052. From the observation results on microstructure of the weld interface, it was found that a Fe/ Al intermetallic compound layer was formed.

引用

页码：559 / 564

页数：5

共 9 条

[1]

Saito J., Weight reduction in motor vehicles using steel plates, Light Met Weld Assoc Symp, pp. 47-72, (2004)

[2]

Nakai M., Ema M., Eto T., Takaki Y., Sato F., Corrosion resistance of high strength Al-Mg alloys for ship application, KOBE Steel Eng Rep, 52, 1, pp. 16-19, (2004)

[3]

Sakai Y., Current state and the future of aluminum alloy applications fo rolling stock, J Jpn Inst Light Met, 55, 11, pp. 584-587, (2006)

[4]

Kobayashi S., Yakou T., Control of intermetallic compound layer at interface between steel and aluminum by diffusiontreatment, Mater Sci Eng, A338, pp. 44-53, (2002)

[5]

Fukumoto M., Tsubaki M., Shimoda Y., Yasui T., Welding between ADC12 and SS400 by means of Friction stirring, Quart J Jpn Weld Soc, 22, 2, pp. 309-314, (2004)

[6]

Yasui T., Shimoda Y., Tsubaki M., Ishii T., Fukumoto M., Characteristics of high speed welding between 6063 and S45C by means of friction stirring - study on welding in dissimilar metals by means of friction stirring (1st report), Quart J Jpn Weld Soc, 23, 3, pp. 469-475, (2005)

[7]

Yasui T., Shimoda Y., Ishii T., Tsubaki M., Fukumoto M., Microstructure observation of weld interface between 6063 Al alloy and S45C carbon steel by means of friction stirring - study on welding in dissimilar metals by means of friction stirring (2nd report), Quart J Jpn Weld Soc, 25, 3, pp. 426-430, (2005)

[8]

Kondo M., Weight reduction of motor vehicle bodies and welding techniques, Light Met Weld Assoc Symp, pp. 35-46, (2004)

[9]

Watanabe T., Doi Y., Yanagisawa A., Konuma S., Resistance spot welding of mild steel to Al-Mg alloy, Quart J Jpn Weld Soc, 23, 3, pp. 491-495, (2005)

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