各種アルミニウム合金管とSUS304ステンレス鋼管の摩擦圧接性 Friction weldability of various aluminum alloy pipe to SUS304 stainless steel pipe
Friction welding of various aluminum alloy pipes to SUS304 stainless steel pipe was carried out making clear weldability at dissimilar material pipe. A1050/SUS304, A5052/SUS304, A5056/SUS304, A6061/SUS304 and A6063/SUS304 joints showed good weldability and the maximum joint efficiencies of these joints in tensile test were about 91%, 71%, 60%, 79% and 97%, respectively. In these cases, the formation of Al<sub>13</sub>Fe<sub>4</sub> intermetallic compound was induced by the interdiffusion through the weld interface. On the other hand, other joints had poor weldability. In the cases of A2011/SUS304, A2017/SUS304 and A2024/SUS304 joints, CuAl<sub>2</sub> and Al<sub>7</sub>Cu<sub>2</sub>Fe were observed on the friction surface, and the maximum joint efficiencies of these joints were about 26%, 39% and 32%, respectively. For the case of A7075/SUS304 joint, Al<sub>23</sub>CuFe<sub>4</sub> was observed on the friction surface, and the maximum joint efficiency was about 37%.
軽金属 49(2), 83-88, 1999-02-28
The Japan Institute of Light Metals