Working principle of FSW In FSW process a threaded profiled pin of a cylindrical shouldered tool rotates and plunged into the joint area between the pieces to be joined. The part which has to join is to be firmly clamped so that the welding takes place very accurately and also in an efficient manner. In this process spindle apply downward forging force. This process is very simple in nature and also uses simple method to produce welding. In this process tool moves continuously until the whole process to be completed and thereafter tool separates from the work piece but hole which is created by tool pin during welding process remains on the plate itself. PROCESS PARAMETERS OF FSW Friction stir welding is that the parameters can be controlled thus controlling the energy input to the system. The TRS and the WS are the two most important process parameters. . The tool geometry (size and profile) and the process parameters affect the heat generation, material flow, microstructure evolution and the properties of the joint. In this technique the tool life is very important factor which depends on the process parameter and to obtain a parameter which is more suitable for the properties of friction stir welding process as well as to know the consequences of the influence of these parameters on the microstructural behavior of welding to be done. The of some of the important parameters such as axial pressure force, speed of rotation, tool tilt angle, shoulder and pin diameter, welding speed which affect weld properties have been investigated. Hence, in this investigation an attempt has been made to understand the effect of tool parameters and process parameters on FSP zone formation and related tensile strength properties of friction stir welded AA 7075-T6 aluminum alloy joints. Important parameters such as axial tool pressure (F), rotational speed (N) and traverse speed (S), on weld properties have been investigated. , Nansaarng and Chaivanich (2007), Azimzadegan and Serajzadeh (2010). But, few investigations, Jayaraman et al. (2009), Lakshminarayanan and Balasubramanian (2008), Nourani et al. (2011) have been performed on formulization and optimization of effects of FSW parameters on mechanical and metallurgical properties. Taguchi method is a very important techniques which was used to optimize the metallurgical behavior in
Working principle of FSW In FSW process a threaded profiled pin of a cylindrical shouldered tool rotates and plunged into the joint area between the pieces to be joined. The part which has to join is to be firmly clamped so that the welding takes place very accurately and also in an efficient manner. In this process spindle apply downward forging force. This process is very simple in nature and also uses simple method to produce welding. In this process tool moves continuously until the whole process to be completed and thereafter tool separates from the work piece but hole which is created by tool pin during welding process remains on the plate itself. PROCESS PARAMETERS OF FSW Friction stir welding is that the parameters can be controlled thus controlling the energy input to the system. The TRS and the WS are the two most important process parameters. . The tool geometry (size and profile) and the process parameters affect the heat generation, material flow, microstructure evolution and the properties of the joint. In this technique the tool life is very important factor which depends on the process parameter and to obtain a parameter which is more suitable for the properties of friction stir welding process as well as to know the consequences of the influence of these parameters on the microstructural behavior of welding to be done. The of some of the important parameters such as axial pressure force, speed of rotation, tool tilt angle, shoulder and pin diameter, welding speed which affect weld properties have been investigated. Hence, in this investigation an attempt has been made to understand the effect of tool parameters and process parameters on FSP zone formation and related tensile strength properties of friction stir welded AA 7075-T6 aluminum alloy joints. Important parameters such as axial tool pressure (F), rotational speed (N) and traverse speed (S), on weld properties have been investigated. , Nansaarng and Chaivanich (2007), Azimzadegan and Serajzadeh (2010). But, few investigations, Jayaraman et al. (2009), Lakshminarayanan and Balasubramanian (2008), Nourani et al. (2011) have been performed on formulization and optimization of effects of FSW parameters on mechanical and metallurgical properties. Taguchi method is a very important techniques which was used to optimize the metallurgical behavior in
doc_24_07_2017_21_56_49.docx