Effect of process parameters on tensile strength of friction stir welding A356/C355 aluminium alloys joint

다국어 초록 (Multilingual Abstract)

In the present investigation, A356/C355 aluminium alloys are welded by friction stir welding by controlling various welding parameters.

A356 and C355 aluminium alloys materials have a set of mechanical and physical properties that are ideally suited for application inaerospace and automobile industries and not widely used because of its poor weldebility. To overcome this barrier, weldebility analysisof A356 and C355 aluminium alloys with high speed steel (Wc-Co) tool has been investgated. An attempt has been made to investigatethe influence of the rotational speed of the tools, the axial force and welding speed on tensile strength of A356/C355 aluminium alloysjoint. The experiments were conducted on a milling machine. The main focus of investigation is to determine good tensile strength. Responsesurface methodology (box Behnken design) is chosen to design the optimum welding parameters leading to maximum tensilestrength. The result shows that axial force increases, tensile strength decreases. Whereas tool rotational speed and welding speed increase,tensile strength increases. Optimum values of axial force (3 /KN), tool rotational speed (900 RPM) and welding speed (75 mm/min.)during welding of A356/C355 aluminium alloys joint to maximize the tensile strength (Predicted 223.2 MPa) have been find out.

참고문헌 (Reference)

1 H. J. Liua, "Wear characteristics of a WC-Co tool in friction stir welding of AC4AC30vol%SiCp composite" 45 : 1635-1639, 2005

2 Douglas C, "Montgomery, Design and analysis of experiments" Wiley-India 427-, 2007

3 R. S. Mishraa, "Friction stir welding and processing" 50 : 1-78, 2005

4 N. T. Kumbhar, "Friction Stir Welding of Al 6061 Alloy" 22 (22): 63-74, 2008

5 P. Cavalierea, "Effect of welding parameters on mechanical and microstructural properties of AA6082 joints produced by friction stir welding" 200 : 364-372, 2008

6 P. Cavaliere, "Effect of welding parameters on mechanical and microstructural properties of AA6056 joints produced by Friction Stir Welding" 180 : 263-270, 2006