DefinePK

Abstract

Laser surface melting (LSM) is a material treatment process based on using the laser beam as a heat source in order to modify the mechanical properties of the material surface. In this article, the optimal parameters of LSM process for AA 6061-O Aluminum is investigated using design of experiment approach. Experiments show that the most effective parameters on LSM process which give maximal hardening to the Aluminum are laser power and pulse duration. Different power magnitudes (4, 4.5 and 5) kW have been applied with different for pulse durations (3, 4 and 5) ms in order to identify the optimal parameters of the LSM. Minitab software was used to determine the optimal parameters of LSM process which they are found to be 4.5 kW laser power with 3ms pulse duration.