Cutting Zone Temperature and Specific Cutting Energy Measurement and Evaluation in Machining Metals
The knowledge of the temperature that develops between tools and the raw material is needed for optimizing the cutting parameters.A controlled Grinding experiment was compared with a thermo-mechanical finite elements model (FEM) simulating the temperature distributions and other effects occurring in the cutting zone.An electric Grinding was controlled by Labview software,keeping the torque and rotational speed constant and preventing disruption of fixed air flow.The processed material was glass ceramics,the mechanical and thermal properties of which are known from the literature.A finite elements model was developed and its parameters determined by matching the computed Nodes with thermocouples temperature measurements.The experiment was carried out by single slot cutting,without cooling.The value of cutting power was based on specific cutting energy (U),known from the literature and calculation of (MRR) from the cutting parameters (depth & width of cut,feed rate).The dynamic model simulated the movement of cutting tool by sampling heat sources along the path.The fit obtained between dynamic model and the measurements enables a reliable calculation of the specific cutting energy (U) for every combination of tool cut and raw material.
cutting specific cutting energy (U) Material removal rate (MRR) finite element method (FEM)
Y. Yifrach U. Ben-Hanan
Department of Mechanical Engineering,ORT Braude College,P.O.Box 78,Karmiel 21982,Israel
国际会议
北京
英文
1-10
2013-06-16（万方平台首次上网日期，不代表论文的发表时间）