A study of micropool lubricated cutting tool in machining of mild steel

被引:180
作者
Lei, Shuting [1 ]
Devarajan, Sasikumar [2 ]
Chang, Zenghu [3 ]
机构
[1] Kansas State Univ, Dept Ind & Mfg Syst Engn, Manhattan, KS 66506 USA
[2] Oliver Mfg Co, Rocky Ford, CO 81085 USA
[3] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA
基金
美国国家科学基金会;
关键词
Micropool lubrication; Cutting force; Chip morphology; Laser micromachining; TRIBOLOGICAL PERFORMANCE; FRICTION; MODEL;
D O I
10.1016/j.jmatprotec.2008.04.024
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper presents an experimental study of the performance of micropool lubricated cutting tool in machining mild steel. Microholes are made using femtosecond laser on the rake face of uncoated tungsten carbide (WC) cutting inserts. Finite element analysis is conducted to assess the effect of microholes on the mechanical integrity of the cutting inserts. Liquid (oil) and solid (tungsten disulfide) lubricants are used to fill the microholes to form micropools. A comparative study is conducted between micropool lubricated (surface-textured) cutting tools and dry/flood-cooled conventional (untextured) cutting tools. Three cutting force components are measured and compared. Tool-chip contact length and chip morphology are examined using optical microscope. it is found that the mean cutting forces (F(f), F(t), and F(c)) are reduced by 10-30% with micropool lubrication. The chip-tool contact length is reduced by about 30%. Coiling chips are produced with micropool lubricated cutting tool while long and straight chips are formed with the conventional cutting tool. Liquid and solid lubricants are found to be equally effective in reducing the contact length and coefficient of friction at the chip-tool interface. There is no adverse effect on the performance of the insert with microholes on the rake face. (C) 2008 Elsevier B.V All rights reserved.
引用
收藏
页码:1612 / 1620
页数:9
相关论文
共 19 条
[1]   FRICTION IN METAL MACHINING-MECHANICAL ASPECTS [J].
BAILEY, JA .
WEAR, 1975, 31 (02) :243-275
[2]  
Booser E. R., 1983, CRC HDB LUBRICATION, V2
[3]  
CHIOU RT, 2005, 161 MED ASME MAN ENG, P13
[4]   Femtosecond laser processing of nitride-based thin films to improve their tribological performance [J].
Dumitru, G ;
Romano, V ;
Gerbig, Y ;
Weber, HP ;
Haefke, H .
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 80 (02) :283-287
[5]   Reduction of tool wear in metal cutting using external electromotive sources [J].
El Mansori, M ;
Pierron, F ;
Paulmier, D .
SURFACE & COATINGS TECHNOLOGY, 2003, 163 :472-477
[6]   Improving tribological performance of mechanical components by laser surface texturing [J].
Etsion, I .
TRIBOLOGY LETTERS, 2004, 17 (04) :733-737
[7]   A model for mechanical seals with regular microsurface structure [J].
Etsion, I ;
Burstein, L .
TRIBOLOGY TRANSACTIONS, 1996, 39 (03) :677-683
[8]   Analytical and experimental investigation of laser-textured mechanical seal faces [J].
Etsion, I ;
Kligerman, Y ;
Halperin, G .
TRIBOLOGY TRANSACTIONS, 1999, 42 (03) :511-516
[9]  
Ghimire S, 2005, LASER PHYS, V15, P838
[10]   Experimental evaluation of friction coefficient and liquid nitrogen lubrication effect in cryogenic machining [J].
Hong, SY ;
Ding, YC ;
Jeong, J .
MACHINING SCIENCE AND TECHNOLOGY, 2002, 6 (02) :235-250