Dynamic Performance Analysis And Optimization Of Grooving Cutter For Lathe

In the lathe cutting,because of the change of cutting force,the vibration of cutting tool and the whole machining system is often caused.In the cutting process,the vibration will not only affect the surface quality of the parts,but the working efficiency since operators usually reduce the cutting amount.When the vibration is strong,cutting tools are easily chipped,which will greatly reduce its service life.Vibration will also be accompanied by noise,so that the working environment becomes bad.Therefore,how to reduce the vibration is important for cutting tool.Considering the actual geometry of the grooving cutter,loading conditions and lathe structure,the solid model of the grooving cutter and cutting system is established firstly by SolidWorks based on the simplification of the whole cutting system,then,the modal analysis is carried out in ANSYS Workbench,which gives the results of natural frequencies,directions of deformation and displacements.Then,the cutting force is calculated and compared with the ADAMS simulation,so as to prepare for the harmonic response analysis.The variation of response amplitude with excitation frequency of the common grooving tool is obtained by harmonic response analysis in Workbench.In order to improve the vibration reduction performance of the grooving cutter,the shape and position of the damping slot were optimized.Although only one slot is lathed on the common grooving cutter,the vibration displacements of the cutting edge in each direction are reduced in different degrees.Finally,the vibration reducing grooving cutter and the common grooving cutter are compared with the stiffness and strength.The results show that the stiffness and the strength of the vibration reducing grooving cutter can ensure its normal use.So it is feasible to reduce the vibration by grooving in cutters.