Abstract
Titanium and its alloys have over the years proven themselves to be technically superior and cost effective materials for a wide range of applications spanning the industries of aerospace, industrial, marine, and even commercial products. In this paper, the surface integrity of titanium alloys Ti-6Al-4V and pure titanium Ti, cut with high power CO2 laser is determined and the results are presented and discussed. The aim of this experimental investigation is to compare the microstructure and the cut surface quality of both titanium based on the variation of three different cutting parameters namely, laser power (Pu), cutting speed (V) and gas pressure (p).
The microstructure analysis is evaluated by investigating the cut edge microstructure and the cut section roughness for both Titanium alloy Ti-6Al-4V and pure Titanium Ti. An experimental analysis is carried out to identify the main effects and interactions of these parameters. Optical microscopy and scanning electron microscopy (SEM) are carried out to examine the cutting defects.