Identification of Tool Wear Intensity During Miniature Machining of Austenitic Steels and Titanium

Implementation and contribution of miniature machining is currently rapidly increasing in biomedical industry, machining of austenitic steels and titanium particularly. Machinability of materials with increased level of toughness depends on factors that are important in the final state of surface integrity. There are requirements for high precision in miniature machining with measures varying in microns. If we want to guarantee machining precision, it is necessarry to identify tool wear intensity in interaction with given materials. During long-term cutting process, different cutting wedge deformations occur, leading in most cases to a rapid wear and destruction of the cutting wedge. The article deald with experimental monitoring of tool wear intensity during miniature machining.