Outline Evolution of Non-Traditional Machining Classification of Advanced Machinig Processes Mechanical Machining Electro-Thermal Machining Laser Beam Machining
Limitations of Conventional Machining Methods I Increased workpiece hardness : decreased economic cutting speed. Hence, lower productivity. I Rapid improvements in the properties of materials (hardness, strength, etc) I Requires much superior quality of tool materials. I Tool material hardness should be greater than workpiece hardness.
Evolution of Advanced Machining Processes(AMPs) I Many Engineering materials are having much superior properties such as ultra high strength , hardness, very high temperature resistance difficult to machine by convenventional machining methods. Ex :Tungsten Carbide, Stainless Steel, Titanium and its alloys etc I If work piece material hardness is greater than the tool material hardness. How are we going to machine such a work piece material ?