Study On Tool Wear And Cutting Edge Structure Optimization In 0Cr13 Stainless Steel Milling

Since the 21 st century,’made in China’ is gradually transformed into ‘intelligent manufacturing in China’.In order to meet the aerospace,water and electricity energy,shipbuilding and other industries rapid development,how to complete machining tasks with high quality and high efficiency becomes a top priority.In this case,the plunge milling method is widely used because of the large amount of metal removal.However,the cutting tools used in plunge milling are often worn and damaged because of the characteristics of high metal cutting rate.The tool life can be reached prematurely.It not only reduces the machining efficiency,but also greatly increases the economic cost.Aiming at reducing tool wear and improving tool life,this research is to adapt to the actual production.The plunge milling can meet the demand of metal processing industry better.The problem of tool wear was solved.The following researches have been done:First of all,the mechanism of tool wear is analyzed,the main wear forms of tool tip area are found in plunge milling.Cutter volume loss caused by different wear mechanism are modeled.The method of analyzing the volume loss caused by wear of the tool in unit time.The change of wear rate of cutting tools in different stages is analyzed quantitatively.Secondly,the three-dimensional simulation model of the 0Cr13 stainless steel in plunge milling process is established using Deform-3D software.The finite element simulation experiments of different cutting parameters are conducted.The temperature of machining area and the change of tool wear rate are studied.And then,orthogonal cutting experiment of carbide plunge milling cutter is completed.The temperature of the processing area and the change rule of tool wear rate are obtained.The experimental results are compared with the simulation results to obtain a more accurate simulation model.A theoretical basis for the study different plunge milling tool wear of cutting edge structure is provided.Finally,study the temperature change in machining area and tool wear in machining area of plunge milling with different cutting edge structure.Different cutting edge structure simulation experiment is done using Deform-2D.The influence of the blunt radius of the blade,the angle and width of the chamfer on temperature of machining area and tool wear rate is studied.Then,the cutting edge structure is optimized with the analysis results.With the cutting verification experiment,it shows that the structure optimized tool can effectively reduce tool wear rate and improve the tool life.This research conclusions provide the theoretical basis and foundation for the design of cutter structure of carbide plunge milling cutter in cutting 0Cr13 stainless steel.It provides an effective reference for the design of the subsequent tool structure.