Research on Influence of Processing Parameters on Delamination Damage and Control Strategies of CFRP/Al Interlayer Structure During Drilling
In order to explore the influence of processing parameters on delamination damage and control strategies in the drilling process of CFRP/Al interlayer structures,firstly,a test fixture is designed and a test platform is built.Different types and materials of drill bits are used to conduct drilling experiments on CFRP/Al interlayer structures,and high-quality drill bits are selected from them.Secondly,the optimal machining parameters were obtained through drilling and hole making experiments on high-quality drill bits under different process parameters.Finally,the variation of axial force and torque during the drilling process with process parameters was analyzed,and the hole making control strategy of CFRP/Al interlayer structure was analyzed.The research results show that the hard alloy double-edged step drill bit is the highest quality drill bit,with a speed greater than 4500 r/min and a feed time of 10 s as the optimal machining parameters,the maximum drilling axial force and torque decrease with the increase of feed time and speed,and the drilling quality of CFRP/Al interlayer structure can be improved by increasing the speed and feed time.
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