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Strength of FSW Joints in Aluminum Extrusions and Simulation

Article of Honda R&D Technical Review Vol.18 No.1

Summary

The use of aluminum extrusions joined by friction stir welding (FSW) was examined under the supposition that such a method might produce a vehicle body structure with highly efficient joins that is also lightweight and low cost. The strength of an FSW joint of aluminum was compared with MIG and laser MIG welding in the fabrication of such a structure. Static and dynamic tests were performed in order to evaluate the collision strength of the FSW joint. As a result, it was determined that welding conditions largely determine the dynamic strength performance of the FSW joint. Additionally, modeling of an FSW joint was attempted and simulation methods were devised.

Reference

(1) Fukuo, K., Fujimura, A., Saito, M., Tsunoda, K., Takiguchi, S.: Development of the Ultra-Low-Fuel-Consumption Hybrid Car-INSIGHT, HONDA R&D Technical Review, Vol. 11, No. 2, p. 1-8
(2) Tanigawa, H., Hori, H., Miyamichi, T., Namba, K.: Tensile Properties of Friction Stir Welded Joints, Japan Light Metal Welding & Construction Association, Vol. 43, No. 5, p. 232-239
(3) Eguchi, N., Iwaki, S., Okada, T., Tanaka, S., Oiwa, N., Namba, K.: Metallurgical Features of Friction Stir Welded Zone, Japan Light Metal Welding & Construction Association, Vol. 43, No. 5, p. 18-29
(4) Cederqvist, L., Reynolds, P. A.: Properties of Friction Stir Welded Aluminum Lap Joints, 2nd International Symposium on Friction Stir Welding (2000)
(5) Urushiyama, Y., Yamada, T., Suzuki, S., Kawano, T.: Research of Aluminum Crash Box for Crash Energy Absorbing, Honda R&D Technical Review, Vol. 13, No. 2, p. 141-148
(6) Japan Society of Mechanical Engineers: Mechanical Shock Breaking Engineering, Chapter 8, Mechanical Shock Intensity of Industrial Material, p. 183-185

Author (organization or company)

Seiji HAYASHI(Tochigi R&D Center)、Takeshi KOIWA(Tochigi R&D Center)、Morio KUROKI(Tochigi R&D Center)、Toshiyuki YAMAGUCHI(Tochigi R&D Center)、Hiroko MIKAMI(Tochigi R&D Center)

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