Review Paper on an Investigation of Joining Of Dissimilar Aluminum Alloys & Steel through Laser Welding By Application of Regression Analysis

Aluminum alloys are widely used in aircraft industry which involves a large number of joint configurations, traditionally fabricated by riveting. Disadvantages of riveting are extra weight to the structure, stress concentration, crevices corrosion and loosening due to vibrations. Moreover, it is a time consuming and manpower intense task. Laser welding can be a potential tool which is superior to other joining techniques, such as, arc welding due its heat input nature and related microstructure effect This investigation mainly based on input parameters like Laser power, Current and laser pulse diameter, There is output parameters are Tensile strength, Heat affected zone and also want to check microstructure of the material after laser welding. There is method for analysis is full factorial method with help regression analysis.