Wear mechanism of single cBN-WC-10Co fiber cutter in machining of Ti-6Al-4V alloy

Mao, Cong1; Zhang, Yuchen1; Peng, Xiaoxiao1; Zhang, Bi2,3; Hu, Yongle1; Bi, Zhuming4

2018-09

10.1016/j.jmatprotec.2018.04.015

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY   影响因子和分区

0924-0136

In order to explore the wear mechanism of single cBN-WC-10Co fiber cutter in machining of Ti-6Al-4V alloy, this study performs scratch tests, and develops a theoretical model based on the evaluation of cutting performance. The scratch and wear morphologies of the fiber cutter are analyzed by an optical profilometer and scanning electron microscopy (SEM). The wear behavior of the fiber cutter is evaluated comprehensively in terms of cutting forces, the wear morphology of fiber and the profile of scratches with respect to cutting passes. The presented study finds that the wear of the single fiber cutter shows three types, i.e., (1) wear at the cutting edge; (2) abrasion on the local flank face; and (3) abrasion on the new flank face. The identified types of the wear are progressed at three wear stages with different cutting passes. Furthermore, when the number of cutting passes is increased from 1 to 65, the pile-up ratio is increased from 0.11% to 9.95%; while the surface roughness over the scratch is increased from 1.30 mu m to 3.73 mu m. Accompanying by the increase of cutting passes and the growth of the fiber wear, the cutting force and the normal to tangential force ratio are gradually increased. The machining efficiency and the quality of the machined surfaces are decreased when the local flank face or the new flank face is developed. The mechanical model of the single fiber cutter is established for the machining of Ti-6Al-4V alloy, and a theoretical wear model is developed to give the rationales of the acquired data of wear and cutting forces from experiments.

Wear mechanism CBN-WC-10Co fiber cutter Cutting force Scratch test Pile-up ratio Ti-6Al-4V alloy

SCI ; EI

英语

其他

Scientific Research Project of Hunan Provincial Office of Education[16A010]

Engineering ; Materials Science

Engineering, Industrial ; Engineering, Manufacturing ; Materials Science, Multidisciplinary

WOS:000437814500005

ELSEVIER SCIENCE SA

20181705038278

Abrasion ; Cobalt alloys ; Cubic boron nitride ; Cutting ; Cutting tools ; Fibers ; Piles ; Scanning electron microscopy ; Surface roughness ; Ternary alloys ; Titanium alloys ; Tribology ; Vanadium alloys

Structural Members and Shapes:408.2 ; Aluminum Alloys:541.2 ; Titanium and Alloys:542.3 ; Vanadium and Alloys:543.6 ; Nonferrous Metals and Alloys excluding Alkali and Alkaline Earth Metals:549.3 ; Machine Tool Accessories:603.2 ; Ceramics:812.1 ; Classical Physics; Quantum Theory; Relativity:931 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Changsha Univ Sci & Technol, Coll Automot & Mech Engn, Changsha 410114, Hunan, Peoples R China
2.Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA
3.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China
4.Purdue Univ Ft Wayne, Dept Civil & Mech Engn, Ft Wayne, IN 46805 USA

Mao, Cong,Zhang, Yuchen,Peng, Xiaoxiao,et al. Wear mechanism of single cBN-WC-10Co fiber cutter in machining of Ti-6Al-4V alloy[J]. JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,2018,259:45-57.

Mao, Cong,Zhang, Yuchen,Peng, Xiaoxiao,Zhang, Bi,Hu, Yongle,&Bi, Zhuming.(2018).Wear mechanism of single cBN-WC-10Co fiber cutter in machining of Ti-6Al-4V alloy.JOURNAL OF MATERIALS PROCESSING TECHNOLOGY,259,45-57.

Mao, Cong,et al."Wear mechanism of single cBN-WC-10Co fiber cutter in machining of Ti-6Al-4V alloy".JOURNAL OF MATERIALS PROCESSING TECHNOLOGY 259(2018):45-57.