Analyzing Friction Stir Welding Methods on Aluminum Pipes

Abstract

Due to the affinity of aluminum for oxygen, it cannot successfully be arc welded in an air environment. If fusion welded in a normal atmosphere oxidization readily occurs and this results in both slag inclusion and porosity in the weld, greatly reducing its strength. To overcome these problems one of the most common ways of welding aluminum has been to a suggestion the friction stir welding. To work in this area needs to do a tremendous amount of experience and this thesis has provided general Specification of the process of friction stir welding pipes using three methods regression analysis (RA),Response surface methodology(RSM) and artificial neural networks (ANN) to infer the mechanical properties has this Specification so for

Heat in friction welding is generated by the conversion of mechanical energy into thermal energy at the interface of work pieces during rotation under pressure. Various ferrous and non-ferrous alloys having circular or non-circular cross sections and that have different thermal and mechanical properties can easily be joined by the friction welding method. Friction welding is classified as a solid-state welding process where metallic bonding is produced at temperatures lower than the melting point of the base metals. Friction time, friction pressure, forging time, forging pressure and rotation speed are the most important parameters in the friction welding method

Gerçekcioglu and T. Eren [13] for the investigates the deformation on the welding surface, it was studied at different rotational speed- 450, 510 and 710 RPM-counter clockwise rotation speed in the FSW. Qasim M Doos and Bashar Abdul Wahab [14] the investigating three tool rotational speeds (500, 630, 800 RPM) with four welding speeds (0.5, 1, 2, 3 mm/Sec) for each rotational speed had been used to study the effect of each parameter (tool rotation, weld speed) on mechanical and microstructure properties of welded joints. Rajakumar et al., [15] for the investigates, effected a tool rotational speed of 1000 RPM, welding speed of 60 mm/min and axial force of 1 kN on mechanical properties. Khandkar et al. (2006) [16] studied the residual stress of such FSW metals as aluminum 2024, aluminum 6063 and stainless steel 304L using a sequentially coupled finite element model with the FSW process. Peel M. (2003) [17] studied a microstructure, mechanical properties, and residual stresses as a function of welding speed in aluminum AA5083 friction stir