Research on Hole-making Parameters for CFRP/7050 Composite Laminate
With the advantages of high precision,high efficiency and high consistency,digital hole-making is widely used in hole making of aircraft skin laminated.Appropriate hole-making parameters directly affect the quality and accuracy of hole-making,which in turn affects the quality and life of the aircraft.Taking carbon fiber reinforced plastics(CFRP)/a-luminum alloy(7050)lamination as the research object,the appropriate hole-making parameters for composite laminated are obtained to achieve high precision and high efficiency.Two orthogonal tests are designed to study the influence of the hole-making parameters on the diameter of aperture.Using the main effect diagram as a tool to analysis the results of the first orthogonal test,and the influence trend of each parameter on the aperture is preliminarily clarified.Then,the range of parameters is optimized,and the second orthogonal tests is designed and implemented.Further,the optimal hole-making pa-rameters are obtained by combining the results of the two groups of orthogonal tests.Aiming at the engineering usability of these parameters,experiments are designed to verify the parameter hole-making ability and tool life.At the same time,in or-der to reduce the workload of parameter research,the verified hole-making parameters are expanded and applied in the hole-making scenarios with the same working conditions and similar diameters.On the premise of hole-making accuracy,the fea-sibility of extended application is ensured through the verification of hole-making ability and tool life,and the applicable hole diameter range of this parameter is obtained.The workload of hole-making parameter research is effectively reduced,and the efficiency is improved.
万方数据
维普
