共 19 条
Air jet assisted machining of nickel-base superalloy
被引:46
作者:
Obikawa, Toshiyuki
[1
]
Yamaguchi, Masashi
[1
]
Funai, Kazuhiro
[2
]
Kamata, Yasuhiro
[1
]
Yamada, Sachio
[3
]
机构:
[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan
[2] Tokyo Denki Univ, Dept Mech Engn, Chiyoda Ku, Tokyo 1018457, Japan
[3] Mitsubishi Mat Corp, Tsukuba Plant, Joso, Ibaraki 3002795, Japan
关键词:
Air jet assisted machining;
Nickel-base superalloy;
Tool life;
Tool wear;
Tool cooling;
Computational fluid dynamic analysis;
CERAMIC TOOLS;
HEAT-TRANSFER;
INCONEL-718;
SPEED;
ALLOY;
CUT;
TUBES;
WEAR;
DRY;
D O I:
10.1016/j.ijmachtools.2012.05.005
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Nickel-base superalloy has various excellent properties. However, in machining of this alloy, acceleration of tool wear results in short tool life and deterioration of the surface integrity. Therefore, it is difficult to conduct high-speed machining of this alloy. In this study, nickel-base superalloy was finish-turned with a coated cemented carbide tool at higher cutting speeds. A new lubrication method called air jet assisted (AJA) machining was applied for improving cooling and lubrication environment. The results of cutting experiments showed that the air jet assistance to the conventional wet machining extended the tool life to a certain extent effectively. Flow of cutting fluid was visualized through computational fluid dynamics analysis and improvement of cooling environment and tool life by means of air jet assistance in AJA machining were discussed from the heat transfer at the tool flank face. (C) 2012 Elsevier Ltd. All rights reserved.
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页码:20 / 26
页数:7
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