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Investigation the Microstractural and Mechanism for the Friction Stir Welding of 7075 Aluminum Zinc Alloy | ||
| Muthanna Journal of Engineering and Technology(MJET) | ||
| Article 1, Volume 4, Issue 2, 2016, Pages 104-114 | ||
| Abstract | ||
| The work aims to study the joining process of to pices Aluminum alloy 7075 with each other using filler metal of copper or ( Tin + Lead ) by means of friction stir welding . A group of specimens were joined by friction stir welding method without metallic filling and using different velocities and different welding tool. Another specimen were taken with the same previous conditions but using metallic filler of copper or ( Tin + lead ) ( the filling metal used in Soldering) . It was evident the interference of this filler with the base metal (7075) with the assurance of granular growth in the region of interference , while when using the filler of copper type, no interference exist but the copper was found separated in the form of tapes around the region of its interference with the base metal . It was also found that the higher rotational speed will result in higher refragement in copper. | ||
| Keywords | ||
| Filler metal; friction stir welding; fusion zone; advanced side; retread side | ||
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