|本期目录/Table of Contents|

Investigation on tool wear and tool life prediction in micro-milling of Ti-6Al-4V(PDF)

《纳米技术与精密工程》[ISSN:1672-6030/CN:12-1351/O3]

期数:
2018年4期
页码:
218-225
栏目:
出版日期:
2018-12-15

文章信息/Info

Title:
Investigation on tool wear and tool life prediction in micro-milling of Ti-6Al-4V
作者:
 Amin Dadgari a Dehong Huo a David Swailes b
a Mechanical Engineering, School of Engineering, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
b School of Mathematics, Statistics and Physics, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
Author(s):
-
关键词:
micro-milling   tool wear   tool life  flank wear  titanium alloy   surface roughness
Keywords:
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分类号:
-
DOI:
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文献标识码:
A
摘要:
 Short tool life and rapid tool wear in micromachining of hard-to-machine materials remain a barrier to the process being economically viable. In this study, standard procedures and conditions set by the ISO for tool life testing in milling were used to analyze the wear of tungsten carbide micro-end-milling tools through
slot milling conducted on titanium alloy Ti-6Al-4V. Tool wear was characterized by flank wear rate, cutting-edge radius change, and tool volumetric change. The effect of machining parameters, such as cut?ting speed and feedrate, on tool wear was investigated with reference to surface roughness and geometric
accuracy of the finished workpiece. Experimental data indicate different modes of tool wear throughout machining, where nonuniform flank wear and abrasive wear are the dominant wear modes. High cutting speed and low feedrate can reduce the tool wear rate and improve the tool life during micromachining.
However, the low feedrate enhances the plowing effect on the cutting zone, resulting in reduced surface quality and leading to burr formation and premature tool failure. This study concludes with a proposal of tool rejection criteria for micro-milling of Ti-6Al-4V.
Abstract:
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参考文献/References

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备注/Memo

备注/Memo:
Corresponding author.
E-mail address: dehong.huo@newcastle.ac.uk (D. Huo).
https://doi.org/10.1016/j.npe.2018.12.005
2589-5540/Copyright ? 2018 Tianjin University. Publishing Service by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC-ND license
(http://creativecommons.org/licenses/by-nc-nd/4.0/).
更新日期/Last Update: 2019-03-14