The effect of process parameters on the microstructure and mechanical performance of fiber laser-welded AA5182 aluminium alloys

Thumbnail Image

Date

2017

Journal Title

Journal ISSN

Volume Title

Publisher

Assoc Mechanical Engineers Technicians Slovenia

Abstract

The laser welding of aluminium alloys is an important industrial technology but many challenges remain. The objective of this research is to investigate the effect of laser welding parameters on the quality of the fiber laser lap welded AA5182 aluminium alloy. The influences of the laser power, welding speed and focal point position on the mechanical and microhardness properties of the joints were experimentally investigated. The mechanical properties of the joints were evaluated by performing tensile tests. From the experimental results, optimum process parameters were determined, and microstructural examination and microhardness tests were conducted to better understand the performance of the joints. It was found that there is a correlation between the tensile shear loads of the joints and heat input per unit length. At the optimized parameters, the welded joint showed good weld appearance without macro defects, and the joint had an adequate tensile shear load.

Description

Keywords

Engineering, Aluminium alloys, Fiber laser welding, Mechanical characterization, Microstructural analysis, Beam, Joints, Aa5083, Panels, Aluminum, Fiber lasers, Laser beam welding, Microhardness, Tensile testing, Welds, Industrial technology, Laser welding parameters, Mechanical characterizations, Mechanical performance, Microhardness tests, Microstructural analysis, Microstructural examination, Optimized parameter, Welding

Citation

Yüce, C. vd. (2017). ''The effect of process parameters on the microstructure and mechanical performance of fiber laser-welded AA5182 aluminium alloys''. Strojniski Vestnik/Journal of Mechanical Engineering, 63(9), 510-518.