THEORETICAL AND EXPERIMENTAL INVESTIGATION OF FRICTION STION STIR WELDING FOR COPPER ALLOY | ||
| Al-Qadisiyah Journal for Engineering Sciences | ||
| Article 1, Volume 6, Issue 3, September 2013, Pages 332-351 PDF (0 K) | ||
| Authors | ||
| Nabeel Shallal Thamer; Ahmed Hadi Abood; Dr. Hani Aziz Ameen | ||
| Abstract | ||
| Friction stir welding (FSW) is a relatively new solid-state joining process. This joining technique is energy efficient. In particular, it can be used to join highstrength aerospace aluminum alloys and other metallic alloys that are hard to weld by conventional fusion welding. In this paper the investigation is made on friction stir welding process for joining of copper alloy. Friction stir welding experiments was performed using different pins (pin with straight boundary and pin with curved boundary). Welding joints efficiencies were found for each set. Mechanical and microstructural analysis has been performed experimentally on the welding zone. Non- linear numerical models was built in ANSYS software to simulate the thermal history of a workpiece undergoing friction stir welding by a moving heating source. An accurate prediction of temperature fields is evident. Exclusive result for effect of rotating a friction stir tools with respect to boundary conditions on stress-strain curves is presented. The results shown that the friction stir welding with pin of curved boundary is more efficient than that of straight boundary | ||
| Keywords | ||
| Friction stir welding; copper alloy; Finite element method; ANSYS software; Tensile test; Microstructure | ||
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