Applications of full Factorial Design Experiments For Laser Welding

Remus Boboescu1

1 Politehnica University Timi?oara,  Địa chỉ email này đã được bảo vệ từ spam bots, bạn cần kích hoạt Javascript để xem nó. .

(DOE08)

Abstract

Laser welding using Nd: YAG laser with continuous emission is applied for a low alloyed steel.

The study pursued molten areas characteristics in the material. On the weld cross section was measured weld width, weld depth and the weld molten zone. Their variation was analyzed with power and welding speed.

A full factorial experimental design was applied for two particular values of the distance between focal plane and the workpiece surface (defocusing depth).

It presents mathematical models, the ranking effects by Pareto charts, response surface method and the multiple ANOVA analysis of variance.

It showed the main effect of laser power in determining the weld characteristics.

Keywords: laser welding, Nd:YAG laser, full factorial design, laser beam defocusing, mathematical model.