Samples of aluminium alloy A356 were manufactured by Semi Solid Metals HPDC technology, developed recently in CSIR, Pretoria. They were butt welded in as cast conditions using as Nd: YAG laser. The best metal and weld microstructure were presented. The effect of different heat treatments on microstructure and mechanical properties of the welds were investigated. It was found that the fine dendrite structure of the weld metal contributed for equalizing the mechanical properties of the joint.
Reference:
Akhter, R, et al. 2006. Laser welding of SSM Cast A356 aluminium alloy processed with CSIR-Rheo technology. Solid State Phenomena, Vol. 116-117, pp 173-176
Akhter, R., Ivanchev, L., Van Rooyen, C., Kazadi, B., & Burger, H. (2006). Laser welding of SSM Cast A356 aluminium alloy processed with CSIR-Rheo technology. http://hdl.handle.net/10204/720
Akhter, R, L Ivanchev, Corney Van Rooyen, BP Kazadi, and HP Burger "Laser welding of SSM Cast A356 aluminium alloy processed with CSIR-Rheo technology." (2006) http://hdl.handle.net/10204/720
Akhter R, Ivanchev L, Van Rooyen C, Kazadi B, Burger H. Laser welding of SSM Cast A356 aluminium alloy processed with CSIR-Rheo technology. 2006; http://hdl.handle.net/10204/720.
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