Molecular dynamics simulation of the effect of tool edge radius on cutting forces and cutting region in nanoscale ductile cutting of silicon

2005 ◽  
Vol 7 (5/6) ◽  
pp. 455 ◽  
Author(s):  
M.B. Cai ◽  
X.P. Li ◽  
M. Rahman
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulation ◽  
Cutting Forces ◽  
Dynamics Simulation ◽  
Tool Edge Radius ◽  
Edge Radius ◽  
Ductile Cutting ◽  
Tool Edge

Three-Dimensional Finite Element Analysis on Precision Cutting for Tool with Nose Radius Considering Tool Edge Radius

2007 ◽  
Vol 10-12 ◽  
pp. 923-927
Author(s):  
Yuan Sheng Zhai ◽  
Ying Chun Liang ◽  
Qing Shun Bai
Keyword(s):  
Finite Element ◽  
Finite Element Modeling ◽  
Cutting Forces ◽  
Three Dimensional ◽  
Maximum Temperature ◽  
Nose Radius ◽  
Element Modeling ◽  
Tool Edge Radius ◽  
Edge Radius ◽  
Tool Edge

The finite element modeling and experimental validation of three-dimensional precision cutting of 3J33 maraging are presented. The commercial software MARC applied for the finite element modeling is studied the effect of tool nose radii considering tool edge radius on the principal cutting forces and the temperature fields. The model employs an updated Lagrangian formulation. The friction between the tool and the chip is assumed to follow a modified Coulomb friction law and the adaptive remeshing technique is using for the formation of chip. The tool edge radius significantly affects the cutting forces and the maximum temperature of the chip. The simulation results for tool with nose radius considering tool edge radius are compared with experimentally measured data and found to be in good agreement.

Effects of the Cutting Tool Edge Radius on the Stability Lobes in Micro-Milling

2011 ◽  
Vol 223 ◽  
pp. 859-868 ◽  
Author(s):  
Shukri Afazov ◽  
Svetan Ratchev ◽  
Joel Segal
Keyword(s):  
Cutting Forces ◽  
Cutting Tool ◽  
Orthogonal Cutting ◽  
Chip Morphology ◽  
Micro Milling ◽  
Tool Edge Radius ◽  
Edge Radius ◽  
Stability Lobes ◽  
Tool Edge ◽  
The Stability

This paper investigates the effects of the cutting tool edge radius on the cutting forces and stability lobes in micro-milling. The investigation is conducted based on recently developed models for prediction of micro-milling cutting forces and stability lobes. The developed models consider the nonlinearities of the micro-milling process, such as nonlinear cutting forces due to cutting velocity dependencies, edge radius effect and run-out presence. A number of finite element analyses (FEA) are performed to obtain the cutting forces in orthogonal cutting which are used for determining the micro-milling cutting forces. The chip morphology obtained for different tool edge radii using FEA is presented. It is observed that at large tool edge radii the influence of the ploughing effect become more significant factor on the chip morphology. The results related to micro-milling cutting forces and stability lobes show that by enlarging the tool edge radius the micro-milling cutting forces increase while the stability limits decrease.

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