Positioning-controled friction welding of a 6061 aluminum alloy

In the conventional friction welding, it is difficult to match phases at the particular position of a rotation side and a fixed side, because the rotating spindle does not exactly control the stopping position. Development of positioning control friction welding meets to be solved such difficulties...

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Veröffentlicht in:Journal of Japan Institute of Light Metals 2002, Vol.52(12), pp.580-585
Hauptverfasser: TAKEGAMI, Hiroaki, SHINODA, Takeshi
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container_title Journal of Japan Institute of Light Metals
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creator TAKEGAMI, Hiroaki
SHINODA, Takeshi
description In the conventional friction welding, it is difficult to match phases at the particular position of a rotation side and a fixed side, because the rotating spindle does not exactly control the stopping position. Development of positioning control friction welding meets to be solved such difficulties as stop at the specified position during braking. This positioning control friction welding was achieved installing servo motor positioning system. The positioning control was examined for the friction welding of an aluminum alloy 6061. The positioning control was satisfactorily performed with a sufficient accuracy. Severe metal flow was observed in the vicinity of weld interface during positioning control. In tensile tests, the fracture occurred at the softened zone. The positioning control did not influence on the tensile strength of welded joints. The width of softened zone decreased with increase in brake timing and pressure. The joint welded under an optimum condition showed the maximum joint efficiency of 83.5%.
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subjects 6061 aluminum alloy
brake timing
friction welding
hardness distribution
positioning control
title Positioning-controled friction welding of a 6061 aluminum alloy
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