An investigation on Microstructures and Mechanical Properties of AA1050 in friction Stir Processing Technique

The friction stir welding process plays a vital role in deciding the weld characteristics. The main aims of this project to establish a fundamental understanding of microstructural and property development during friction stir processing (FSP), with a special focus on commercial Al AA1050 Aluminum. In the present study, experimentally investigate the influence of tool pin profile with different tool rotational speeds on microstructure of AA1050 commercial Al by FSP technique. Tool of various pin profiles such as cylindrical, conical, cylindrical threaded, conical threaded and shoulder with probe will be inserted into a single piece of material, for micro structural modification. Effect of tool rotational speed and welding speed of base metals (AA1050) on macrostructures, microstructures and impact strength of the welded joints were investigated.