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The temperature and stress fields in beryllium during high speed cutting process were studied by employing a thermo-mechanically
coupled finite element method (FEM). The results show that the temperatures in beryllium increase only a little during the
cutting process. Both of the residual stresses for along and normal to the cutting direction are tensile stresses in the surface
of beryllium after cutting. The cutting force and thrust force are about 280 and −250 kN/m at the steady stage, respectively.
The main effects of coolant on the cutting process are to decrease the friction coefficient and heat between the tool and
the workpiece, so to reduce the temperature, but almost no effects are made for stress. This study is helpful to enhance the
understanding for stress formation and optimize the process parameters of beryllium. 相似文献
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