Abstract
Titanium alloys have been widely used in industries, especially aerospace, energy and medical industries, due to their good mechanical and chemical properties. However, titanium alloys are typically difficult-to-cut materials. That is why, in industries we are using many process to cut this alloys. In fact, several studies have made a comparisons between the various machining processes currently used in industries to cut Titanium alloys.
Remains the abrasive water jet process is the most answered in terms of quality quantity and reliability. In this cutting technique, a thin, high velocity water jet accelerates abrasive particles that are directed through an abrasive water jet nozzle at the material to be cut. Advantages of abrasive water jet cutting include the ability to cut almost all materials, no thermal distortion, and high flexibility, small cutting forces and being environmentally friendly. The mechanism and rate of material removal during AWJ cutting depends both on the type of abrasive and on a range of process parameters.
The presented work aims at studying the behavior machinability in Ti-6AL-4V alloys using the GMTas an abrasive material with 80 meshes. Photographs of cut shapes were taken with a 2D machining which show the impact of parameters conditions on surface geometric in different location. A comparative measurement of the kerf and the precision of the angle was taken with a profile projectors, and the defects of cut was discussed.
In order to increase the relibility of the abrasive water jet process, and to anticipate an estimation of the machinability of the material, a mathematical model of the Kerf width has been put in place, which aims at optimization of cutting parameters by minimizing the Kerf.