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Fem Simulation of Tool Wear in High Speed Cutting of Titanium Alloy Ti6al4v with Hydrogen Treatment

Author: ShiDeFeng
Tutor: FuYuCan
School: Nanjing University of Aeronautics and Astronautics
Course: Mechanical Manufacturing and Automation
Keywords: Titanium alloy Home hydrogen Orthogonal cutting Finite Element Analysis Tool wear
CLC: TG506.1
Type: Master's thesis
Year: 2010
Downloads: 253
Quote: 1
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Abstract


Extend the service life of titanium alloy machining the tool has been one of the problems that need to be solved in the manufacturing technology of the aerospace industry and other industries . Studies have shown that thermal hydrogen treatment can improve the titanium machining performance, extend tool life . Therefore, the study of different hydrogen content of titanium alloy TC4 cutting tool wear has important theoretical significance and application value . In this paper, the specific research : to carry out the titanium alloy TC4 turning tool wear experiments and analysis tool wear mechanism and tool wear rate model ; material model , the definition of frictional contact type , the development of chip separation criteria discussed , combined with the finite element software ABAQUS numerical model to predict tool wear ; extracted by the secondary development of software Python tool each variable in the cutting process calculated to obtain the amount of tool wear . This article focuses on research and analysis tool surface temperature in the the home hydrogen titanium alloy TC4 cutting process , compressive stress, the trend of tool wear rate and tool wear with the set amount of hydrogen . Test and simulation results show that : when placed in the hydrogen content in the titanium alloy was 0.3% (mass ratio) , the material has good machinability , the same cutting conditions , minimum tool wear .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metal cutting and machine tools > General issues > Metal cutting process > High-speed cutting
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