Comparison between wrought and EBM Ti6Al4V machinability characteristics

被引：34

作者：

Bordin, A. ^{[1
]}

Bruschi, S. ^{[1
]}

Ghiotti, A. ^{[1
]}

Bucciotti, F. ^{[2
]}

Facchini, L. ^{[2
]}

机构：

[1] Univ Padua, Dept Ind Engn, Via Venezia 1, I-35131 Padua, Italy

[2] Eurocaoting spa, Trento, Italy

来源：

MATERIAL FORMING ESAFORM 2014 | 2014年 / 611-612卷

关键词：

machinability; Ti6Al4V; tool wear; electron beam melting; MACHINING TI-6AL-4V ALLOY; SURFACE INTEGRITY; MICROSTRUCTURE; TOOL;

D O I：

10.4028/www.scientific.net/KEM.611-612.1186

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron Beam Melting (EBM) is attracting large interest among the manufacturers of surgical implants as a near-net shape technology. Titanium alloy Ti6Al4V is widely used in the biomedical field thanks to its high biocompatibility, corrosion resistance and mechanical properties. The chemistry and microstructural features of EBM Ti6Al4V indicate lower machinability in comparison with wrought Ti6Al4V. Aim of the paper is to present a comparison between the machinability of wrought and EBM Ti6Al4V in semi-finishing external turning, by quantifying the effects of the cutting speed and the feed rate. Tool wear, surface integrity, chip morphology and microstructural analysis have been used to compare and assess the machinability of Ti6Al4V delivered in the two conditions.

引用

页码：1186 / 1193

页数：8

共 16 条

[1]

[Anonymous], 1993, International Standard ISO 3685

[2]

[Anonymous], INT J MACHINE TOOLS

[3] Recent advances in modelling of metal machining processes [J].

Arrazola, P. J. ;

Oezel, T. ;

Umbrello, D. ;

Davies, M. ;

Jawahir, I. S. .

CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2013, 62 (02) :695-718

[4] Turning of advanced Ni based alloys obtained via powder metallurgy route [J].

Axinte, D. A. ;

Andrews, P. ;

Li, W. ;

Gindy, N. ;

Withers, P. J. .

CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2006, 55 (01) :117-120

[5] Observations on chip formation and acoustic emission in machining Ti-6Al-4V alloy [J].

Barry, J ;

Byrne, G ;

Lennon, D .

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2001, 41 (07) :1055-1070

[6]

Bhaumik S. K., MAT DESIGN, V16, P221

[7] The effect of machining on surface integrity of titanium alloy Ti-6% Al-4% V [J].

Che-Haron, CH ;

Jawaid, A .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2005, 166 (02) :188-192

[8] Tool life and wear mechanisms in high speed machining of Ti-6Al-4V alloy with PCD tools under various coolant pressures [J].

da Silva, Rosemar B. ;

Machado, Alisson R. ;

Ezugwu, Emmanuel O. ;

Bonney, John ;

Sales, Wisley F. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2013, 213 (08) :1459-1464

[9] Microstructure and mechanical properties of Ti-6Al-4V produced by electron beam melting of pre-alloyed powders [J].

Facchini, Luca ;

Magalini, Emanuele ;

Robotti, Pierfrancesco ;

Molinari, Alberto .

RAPID PROTOTYPING JOURNAL, 2009, 15 (03) :171-178

[10] Selective laser melting additive manufacturing of Inconel 718 superalloy parts: Densification, microstructure and properties [J].

Jia, Qingbo ;

Gu, Dongdong .

JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 585 :713-721

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