experimental and numerical study of heat flux distribution in laser forming of bi-layer sheets

laser forming is a modern process which is mainly used for forming metals. different lasers are used in this regard that includes nd: yag and co2. in this study, forming bi-layer sheets of aluminum/ceramic by laser was investigated. furthermore, effect of uniform and gaussian heat flux distribution in different power, velocity, and beam diameters on bending angle was studied. fem simulation indicated that, in the same conditions of analysis, uniform heat flux distribution caused higher bending angle than gaussian heat flux distribution. moreover, the results showed that there was an optimum point at different speeds and laser beam diameters, at which the bending angle was maximum. in order to evaluating the numerical results, a set of experiments was conducted, which showed good agreement.