Boonchouytan, W., burapa, romadorn and Muangjunburee, P. 2016. Effect of tool rotational speed on metallurgy and mechanical properties of dissimilar joint friction stir welded aluminum semi solid metal 356 and 7075. Naresuan University Engineering Journal. 11, 2 (Dec. 2016), 21–30. DOI:https://doi.org/10.14456/nuej.2016.24.