Study On The High Speed Turning Simulation Of INCO718 Based On DEFORM-3D

The high precision,multi-variety and small batch development directions in the aerospace manufacturing field have made newer and higher demands on the cutting of nickel-based superalloy.High speed machining is an advanced manufacturing technology which has a rapid development in recent years,it has many advantages over the traditional cutting methods,so it is of great significance to do researches on the high speed machining of the nickel-based superalloy.Using the finite element software to simulate the cutting process is an effective research method.In this paper,key techniques in the process of using FEM to simulate the cutting were analyzed,including material model,chip separation criteria,friction model and the adaptive mesh technology.Taking the nickel-based superalloy as the research object,some simulation researches on the distribution and changing rule of cutting temperature and cutting force in the process of high speed machining were made.Using single factor experiment method,the influence of cutting parameters on cutting temperature and cutting force was studied,and the Comparison and analysis of the cutting were done under normal and lower temperature environment.Designing the finish machining orthogonal experiment,using the range analysis to get the influence weight of cutting parameters on cutting force.With the SPSS software,the multiple linear regression method was used to establish the empirical formula of cutting force,the goodness of fit and significance level were tested.Study done in this paper will provide experiences and references for the study of metal cutting with the FEM,and it will has a certain guiding significance on the establishing and optimizing of the cutting parameters in actual cutting production of the nickel-based superalloy.