125 純Cu/純Al摩擦圧接継手の引張特性と境界部の層成長におよぼす圧接面性状の影響(材料工学II)(オーガナイズドセッション(a)材料力学・材料強度に関する新展開)

概要

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This report describes the effects of faying surface conditions beforejoining, especially, the thickness of oxide film, on the tensile andmetallurgical properties of oxygen free pure copper (OFC)/pure aluminium(Al) friction weld joint. The joint tensile strength decreased when thethickness of oxide film on both materials before joining increased and alltensile specimens fractured at the joint interface between OFC and Al. Theoxide film on OFC decreased the joint strength more than that on Al substrate. This is due to the difference of the deformation resistance between OFC and Al. That is, OFC hardly deformed during friction joiningoperation, however, Al substrate deformed out as collar. While the joiningstarted at periphery side, and propagated toward center axis portion when OFC surface was oxidized, it started from center axis when Al surface was oxidized.
一般社団法人日本機械学会の論文
2000-09-25