Consideration on a laser welding condition range under which fatigue strength is stabilized in lap joints of aluminum alloys

Kyohei Kawamoto; Shintaro Yoshimitsu; Tatsuhiko Yoshimura; Hiroshi Noguchi

doi:10.1299/kikaia.70.1491

Consideration on a laser welding condition range under which fatigue strength is stabilized in lap joints of aluminum alloys

Kyohei Kawamoto, Shintaro Yoshimitsu, Tatsuhiko Yoshimura, Hiroshi Noguchi

Strength of materials

Research output: Contribution to journal › Article › peer-review

Abstract

This research showed the procedure to search the proper welding condition, in lap joints of aluminum alloys made by laser welding. In this research, parameters of laser welding were the following three factors ; gap width, welding speed and laser power. By strength tests and observations of weld zone, the following conclusion was obtained. In order to search the laser welding condition range under which tensile strength and fatigue strength are stabilized, it is necessary to observe the states of weld zone and avoid following two matters. The one is lack of fusion by the shortage of heat input, and the other is weld cracking near toe of the weld by the excess of that.

Original language	English
Pages (from-to)	1491-1498
Number of pages	8
Journal	Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume	70
Issue number	10
DOIs	https://doi.org/10.1299/kikaia.70.1491
Publication status	Published - Oct 2004

All Science Journal Classification (ASJC) codes

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1299/kikaia.70.1491

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Consideration on a laser welding condition range under which fatigue strength is stabilized in lap joints of aluminum alloys. / Kawamoto, Kyohei; Yoshimitsu, Shintaro; Yoshimura, Tatsuhiko et al.
In: Nihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A, Vol. 70, No. 10, 10.2004, p. 1491-1498.

Research output: Contribution to journal › Article › peer-review

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abstract = "This research showed the procedure to search the proper welding condition, in lap joints of aluminum alloys made by laser welding. In this research, parameters of laser welding were the following three factors ; gap width, welding speed and laser power. By strength tests and observations of weld zone, the following conclusion was obtained. In order to search the laser welding condition range under which tensile strength and fatigue strength are stabilized, it is necessary to observe the states of weld zone and avoid following two matters. The one is lack of fusion by the shortage of heat input, and the other is weld cracking near toe of the weld by the excess of that.",

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Consideration on a laser welding condition range under which fatigue strength is stabilized in lap joints of aluminum alloys

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All Science Journal Classification (ASJC) codes

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