Study On The Mechanical Ruling Method Of The Main And Secondary Ruling Tool

V-groove is one of the most significant microstructures which has been widely used in these fields,such as mechanics,electronics,photons.biomechanics,and optics.Their wide application can be attributed to their ability to enhance surfaces with a variety of additional functions.But at present,it can not fundamentally resolve the problem of the elastic-plastic deformation of the V-screw during the processing process and during the treatment of the large V-screw,as the machining surface is achieved by tearing the metal through the cutting force of the tool,the surface quality is not cut without chips,and the machining groove quality is high,and it is easy to cause tool wear,and then affect the processing Life and machining quality.However,the scratch forming process without chip can only be used for the metal with strong plasticity or coating metal to realize the forming process of small groove depth,which requires high quality of the processed material,and can not solve the processing problem of V-shaped groove with large groove depth.The compound machining method of V-groove by double cutter planing and engraving is that the planer and the cutter are processed into grooves at the same time.The planer is in front of the planer,and the one side is facing the processing direction.During the treatment of the surface material,the material is removed by adhesion to form a V-indentation.The cutter is on the back of the planer,with both sides facing the processing direction.The formed V-groove surface is not produced by ironing second chip cutting,and the final V-groove geometry index can be achieved by controlling the springback.However,there are few related researches.In this document,based on the relevant theories of our laboratory,a digital model for the analysis of the cut in a circle,groove surface stress and springback deformation is extended to the whole groove surface.In this paper,two planers and marking machines with the same structure are taken as the research objects,and the residual stress of cutting groove is analyzed by finite element simulation method.material springback,material flow velocity,work hardening layer,microhardness of V-groove surface,formation process of equivalent stress,and wear depth of planer and cutter by finite element simulation,and some problems are found.Then,based on the optimized plan of planing depth and cutting depth,the influence law of groove burr size distribution and chip formation mechanism under different rake angles of planer are analyzed.By selecting the planer with small rake angle,the burr distribution can be effectively suppressed and the chip generation can be smooth.It provides a theoretical basis for reducing the degree V plastic deformation.guidance for the double cutter planing and engraving composite machining method.Finally,the simulation is verified by the experimental platform of the V-Groove double-cut grooves and cutting,which lays the foundation for the compound machining method of double cutter planing and V-groove.For the experimental part,a double tool rest is made and a V-groove double cutter planing and cutting experimental platform is built.Aiming at the V-groove planing and engraving,the groove shape after the combination of planing depth and cutting depth is detected.From the perspective of micro morphology,gross surface roughness,gross microwave surface hardness and wear of double instruments,the advantages of deep cutting combination over single tool planing are verified The results show that the surface roughness value obtained by large planer depth cutter and small cutting depth is the smallest.In the aspect of groove surface hardness detection,V-depths of four test schemes are tested by Vickers hardness test,which exceeds the accuracy of the analysis of the hardness of the simulation process ft.At The distribution of the simulated tool wear range is demonstrated by recognizing the residual carbon content of the planner.scriber and groove surface.At the same time,for the V-groove burr distribution and other aspects,the micro inspection of the V-groove along the burr after planer with different rake angle is carried out by using scanning electron microscope.