MACHINING OF HARD-WORKABLE MATERIALS USING TWO LASER BEAMS

The paper gives an overview of the importance of modern materials in industry and problems regarding their machining. Materials such as: composites, hard metals, different types of ceramics and similar are hard to machine using conventional methods, because of their nature and mechanical properties. One of the ways to solve the machining problem for this type of material is by using a laser beam machining with two beams. In this process each laser beam makes a groove on the working area while the volume of the material lying between the crossover of two beams is eliminated. Theoretical discussion on thermal properties of materials which were subject to laser machining created a mathematical model which was subsequently compared with the experimental results