Analytical model for force prediction when machining metal matrix composite

被引:81
作者
Sikder, S. [1 ]
Kishawy, H. A. [1 ]
机构
[1] Univ Ontario Inst Technol, Fac Engn & Appl Sci, Machining Res Lab, Oshawa, ON, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
MMC; Cutting force; Modeling; CHIP FORMATION; ABRASIVE WEAR; TOOL WEAR; STRESS;
D O I
10.1016/j.ijmecsci.2012.03.010
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper presents an analytical force model to predict the forces generated during machining of metal matrix composites and investigates the effect of particle size on machining forces. Several aspects of the cutting mechanics such as shear force, ploughing force, and particle fracture force are considered to estimate the generated cutting forces. Chip formation force is obtained using the Johnson-Cook constitutive model. The ploughing force is formulated using the slip-line field theory, while the fracture force is calculated using Griffith Theory. The predicted results are compared to experimentally measured data under different conditions. The results show acceptable agreement between the theoretically predicted and experimentally measured cutting forces. (C) 2012 Elsevier Ltd. All rights reserved.
引用
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页码:95 / 103
页数:9
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