Molecular dynamics simulation and experiment research of cutting-tool wear mechanism for cutting aluminum alloy

In order to reveal the wear mechanism of diamond tool in precision cutting large-aperture aluminum alloy mirror, molecular dynamics simulation is carried out in this work. The simulation results indicate that diffusion wear is the dominant way of the tool wear, which is in consistent with the cuttin...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2018-04, Vol.96 (1-4), p.1123-1137
Main Authors: Dong, Guojun, Wang, Xin, Gao, Shengdong
Format: Article
Language:English
Subjects:
Aluminum
Aluminum alloys
Aluminum base alloys
Apertures
Arc cutting
CAE) and Design
Computer-Aided Engineering (CAD
Cutting parameters
Cutting speed
Cutting tools
Cutting wear
Diamond machining
Diamond tools
Engineering
Experiments
Feed rate
Industrial and Production Engineering
Mechanical Engineering
Media Management
Molecular dynamics
Organic chemistry
Original Article
Production planning
Simulation
Tool wear
Wear mechanisms
Wear rate
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Summary:In order to reveal the wear mechanism of diamond tool in precision cutting large-aperture aluminum alloy mirror, molecular dynamics simulation is carried out in this work. The simulation results indicate that diffusion wear is the dominant way of the tool wear, which is in consistent with the cutting experiment. EDS of the aluminum alloy chips shows that Cu elements result in the phenomenon of chemical wear for diamond tool in the precision cutting process. Therefore, the wear mechanism of diamond tool in precision cutting large-aperture aluminum alloy mirror is a combination of diffusion wear and chemical wear. In addition, through the micro topography of the diamond tool wear zone, it can be found that the flank wear is the dominant form of the cutting tool. The results of the orthogonal experiment show that the influence of the tool clearance and feed rate on tool wear is greater than that of the cutting speed and tool arc radius. The results of single-factor experiment indicate that with the increase of the feed rate, the tool wear increases. While with the increase of the tool clearance, the tool wear decreases.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-018-1641-6