The paper describes the method of cutting parameters optimization for the case of turning a sintered powder materials, which are based on nickel. During the cutting process the temperature, cutting force, tool wear and surface roughness Ra measurements were made. The test results are presented in the form of graphs, photos and tables.
Paper presents some aspects of modeling and simulation of machining focusing on the burr formation in the last phase of the chip creation in the aluminum and titanium alloys. Researches concern the temperature and strain fields distributions in the cutting zone. Finite element method was applied in the numerical calculations basing on the Lagrange’ equation.
The paper describes research concerning the analysis of the chip flow phenomenon during turning process of difficult-tocut materials. In the study a series of tests of roughing turning were carried out. A process of chip formation in the cutting zone was recorded using the high-speed camera Phantom 5.2. The direction and speed of the chips flow were estimated in the computer program for analysis of the point movement e.g. speed and acceleration.
The paper describes research concerning the method of the chips forming for the face turning of stainless steel. In the study a series of tests of finishing and roughing turning were carried out. A process of chip formation in the cutting zone was recorded using the high speed camera Phantom 5.2. The direction and speed of the chips flow were estimated in the computer program for analysis of the point movement. An effort was made to determine the approximate trajectory of the chip flow in the XYZ system.
Paper presents researches of cutting force measurements and computer simulation of physical phenomena existing in the cutting zone. Stress distributions in the upper layer after machining were calculated with the numerical software, basing on the FEM method. Optimization of turning process was realized for the purpose to minimize the cutting force and stress values during stainless steel machining, belonging to the difficult-to-cut materials group.
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