Abstract
The main objective of this paper is to develop a complex experimental investigation and, by this way, to describe and analyze the influence of pulsed Nd: YAG laser cutting main parameters on the process energy consumption. The tested material was a Glass fiber/epoxy composite. The experimental program was performed by two approaches, factorial and classic. The design of experiments allowed the research results presentation as regression polynomial equation, Pareto effects diagram, response surfaces diagrams and single-factorial classic diagrams. A pertinent final discussion gave a global image and proved the validity of developed research. Keywords: design of experiments, pulsed Nd: YAG laser cutting, Glass fiber/epoxy composite, energy consumption ratio