Thermal Coupling Analysis of Two-dimensional Orthogonal High-speed Cutting Based on ABAQUS
In this paper,the nonlinear finite element analysis software ABAQUS is used to establish an orthogonal cut-ting finite element model for the material 2024 aluminum alloy,combine with the Johnson-Cook material constitutive rela-tionship and shear failure criterion simulation to simulate the formation of chips,and the relationship between cutting speed(240～360m/min),cutting angle(-6°～6°)and cutting force,cutting temperature,Von-Mises yield stress and stress distribution are simulated and analyzed.The results show that the size of the Von-Mises yield stress depends on the nature of the material itself and has nothing to do with the cutting speed and cutting angle.When the cutting speed changes from 240m/min to 360m/min,it has almost no effect on the cutting force.The maximum cutting temperature will gradually in-crease,and the surface temperature of the workpiece material close to the cutting area will gradually decrease.The stress on the chips in the second deformation area gradually decreases,and the range of the first deformation area shows a decreasing trend.The cutting angle is from-6° to6°.When the cutting angle decreases by6°,the cutting force and the maximum cut-ting temperature increase by an average of about 7.305%and 21%,the depth of the residual stress layer on the processed surface gradually increases,and the temperature distribution and stress distribution on the chips are gradually distributed in strips along the shear surface.
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