Parameters Design Of Milling Cutter For Titanium Alloy Thin-Wall Part Based On Cutting Simulation Technology

Titanium alloys have been widely used in the aerospace field due to their excellent properties.To obtain light-weight and high-strength structural parts,integral thin-walled parts are widely used in the aerospace field.Therefore,titanium alloy thin-walled parts are widely used in the aerospace field.extensive attention.However,titanium alloy is a typical difficult-to-machine material.The overall thin-walled structural parts in the aerospace field have low rigidity,large material removal,and high precision requirements.So,it is extremely difficult to process thine-walled part.In the finishing process of titanium alloy thin-walled parts,side milling is a common processing method.At the same time,integral milling cutters are widely used.The structural parameters of the tool side edges are the main factors to ensure tool life,control workpiece quality,and improve processing efficiency factor.Therefore,it is of great significance to study the influence of the side edge parameters of the integral milling cutter on the cutting performance during the finishing process of titanium alloy thin-walled parts,and then to complete the side edge parameter design of the integral milling cutter.First,based on metal cutting principles and finite element simulation theory,the three-dimensional milling process is equivalently simplified to an orthogonal cutting process.Based on the AdvantEdge FEM finite element physical simulation platform,the key technology of metal cutting finite element simulation model is studied,and a metal cutting processing model that can reflect the structure of the cutting edge of the tool is established.Observe the metal cutting process through simulation experiments,verify the accuracy and reliability of the finite element model through cutting force experiments,and provide a theoretical basis for tool structure parameter analysis and integral milling cutter structure design.Subsequently,based on the finite element simulation model established above,and based on the single factor test method,the influence law of the tool geometric angle represented by the tool rake angle and the tool back angle on the cutting process was studied during the finishing process of titanium alloy thin-walled parts.At the same time,combined with the theoretical analysis method,the influence of the helix angle of the tool on the geometric parameters of the actual cutting process and the uniformity of the milling process is studied.Then choose the appropriate tool geometry angle parameters.At the same time,the finite element physical simulation model of the two-dimensional milling process established above is combined with the single factor test method to study the relationship between the blunt radius of the blunt circular edge,the chamfer angle of the chamfered edge,and the chamfered width.The influence law of the finishing process of titanium alloy,select the appropriate cutting edge structure parameters.Finally,choose the chamfered edge tool as the design research object,and select four representative tool structure parameters of rake angle,back angle,chamfer angle,and chamfer width as controllable factors,based on the metal cutting finite element simulation established above Model,apply Taguchi method for multi-objective optimization,and complete the design of integral milling cutter tool structure for the finishing needs of side milling of titanium alloy thin-walled parts.