Carbon fiber reinforced plastic(CFRP)is easily subjected to cutting forces and excessive depth of subsurface damage in machining,and in order to improve the machining performance of CFRP,a macro continuous dynamic cutting CFRP finite element model was established based on the Hashin failure criterion.The groove-shaped texture tool was introduced to reduce the cutting force and subsurface damage depth.Based on the response surface methodology(RSM),29 groups of four-factor three-level orthogonal cutting experiments were established,and the four texture parameters(distance T,texture width W,texture spacing s and texture depth d)were fitted to the subsurface damage depth.The influence of the each factor on the depth of subsurface damage is analyzed.The results show that the cutting force and subsurface damage depth generated by the micro-textured tool are smaller than those of the non-textured tool.The influence of the texture parameters on the damage depth is W,d,s,T,and the cutting force and the subsurface damage are minimized when the optimal combination of texture parameters is T=10 μm,W=30 μm,s=20 μm,d=10 μm.
关键词
有限元仿真/CFRP/织构参数/面下损伤深度/RSM
Key words
finite element simulation/CFRP/texture parameters/subsurface damage depth/RSM
维普
万方数据