Machining of Ti-6Al-4V Thin-walled Cylinders Prepared With Hot Isostatic Pressing Technology

doi:10.12044/j.issn.1007-2330.2020.03.017

Home > Archive>Volume 50, Issue 3, 2020 >95-99. DOI:10.12044/j.issn.1007-2330.2020.03.017

Machining of Ti-6Al-4V Thin-walled Cylinders Prepared With Hot Isostatic Pressing Technology
DOI:
                        10.12044/j.issn.1007-2330.2020.03.017
                    
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Author:
                        SUN Fujian1,2SUN Fujian
Intelligent manufacturing institute,Hunan University of Science and Technology,Taiyuan 030051;Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material,Hunan University of Science and Technology,Xiangtan 411201
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QU Shengguan3QU Shengguan
School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640
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DENG Zhaohui1,2DENG Zhaohui
Intelligent manufacturing institute,Hunan University of Science and Technology,Taiyuan 030051;Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material,Hunan University of Science and Technology,Xiangtan 411201
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Affiliation:1.Intelligent Manufacturing Institute,Hunan University of Science and Technology,Taiyuan 030051;2.Hunan Provincial Key Laboratory of High Efficiency and Precision Machining of Difficult-to-Cut Material,Hunan University of Science and Technology,Xiangtan 411201;3.School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640
Clc Number:GT506.9
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Abstract:

In order to enhance the machining precision of titanium alloy thin-walled cylinders,two Ti-6Al-4V thin-walled cylinders with different structures were prepared by using hot isostatic pressing technology.The influences of the fixture,poured slurry and cylinder structure on the cylindrical surface roughness and cylindrical precision were studied.The results show that hot isostatic pressing Ti-6Al-4V thin-walled cylinders after machining can reach the accuracy requirements,poured slurry can reduce elastic spring back to improve outer ring precision of the thin-walled cylinders;the inner ring and thick end of the cylinder structure can enhance stiffness to reduce the cylindrical surface roughness effectively;while big fixture layout error can make a significant influence on roundness and coaxiality,the large error remarkably decreases the outer ring precision.

Key words:Hot isostatic pressing technology;Ti-6Al-4V Thin-walled cylinder;Surface roughness;Cylindrical precision

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Received:April 30,2019
Revised:May 04,2020
Adopted:June 18,2019
Online: June 17,2020
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