During the cutting process, large quantities of emitted heat are concentrated on a small surface area interface between workpiece and edge. The resultant very high temperature significantly affects tool life. Knowledge maximum temperatures to be expected edges is important, as it allows conditions adjusted in such manner that critical value thermal resistance not exceeded for material. In effec...

Inverse heat conduction problems (IHCPs) appear in many important scientific and technological fields. Hence analysis, design, implementation and testing of inverse algorithms are also of great scientific and technological interest. The numerical simulation of 2-D and 3-D inverse (or even direct) problems involves a considerable amount of computation. Therefore, the investigation and exploitati...

Heat-resistant alloyed stainless steels are increasingly being used for critical machine parts. The limited scope of application heat-resistant is due to their high strength and toughness that make them difficult machine, allowing these materials be classified as machine. It proposed solve the problem poor machinability by means high-temperature embrittlement material arising at achievement a c...

Finite Element Method (FEM) based techniques are available to simulate metal cutting processes and offer several advantages including prediction of tool forces, distribution of stresses, and temperatures, estimation of tool wear, and residual stresses on machined surfaces, optimization of cutting tool geometry, and cutting conditions. However, work material flow stress and friction characterist...

Thermal issues are critical when machining Ni-based superalloy components designed for high temperature applications. The low thermal conductivity and extreme strain hardening of this family of materials results in elevated temperatures around the cutting area. This elevated temperature could lead to machining-induced damage such as phase changes and residual stresses, resulting in reduced serv...

most of the materials used in the industry of aero-engine components generally consist of titaniumalloys. advanced materials, because of their excellent combination of high specific strength, lightweight and general corrosion resistance. in fact, chemical wear resistance of aero-engine alloyprovides a serious challenge for cutting tool material during the machining process. the reductionin cutt...