Prediction of chatter in NC machining based on a dynamic cutting force model for ball end milling

2007 ◽  
Vol 47 (12-13) ◽  
pp. 1827-1838 ◽  
Author(s):  
Seon-Jae Kim ◽  
Han Ul Lee ◽  
Dong-Woo Cho
Keyword(s):  
Cutting Force ◽  
End Milling ◽  
Nc Machining ◽  
Force Model ◽  
Cutting Force Model ◽  
Ball End Milling ◽  
Dynamic Cutting Force

Research on Feedrate Optimization Based on Cutting Force Model with Double Effect for the Ball-End Milling

2011 ◽  
Vol 291-294 ◽  
pp. 2965-2969
Author(s):  
Yu Jun Cai ◽  
Hua Shen ◽  
Tie Li Qi
Keyword(s):  
Cutting Force ◽  
End Milling ◽  
Double Effect ◽  
Machining Process ◽  
Force Model ◽  
Optimization Strategy ◽  
Cutting Force Model ◽  
Ball End Mill ◽  
Ball End Milling ◽  
Feedrate Optimization

A new cutting force model of ball-end mill with double effect is developed through analysing the machining process by using differential geometry. The cutting force model is needed to be revised for the component force in Z direction because of the offset to the actual results. The cutting force and the ball-end milling force coefficients can be given with numerical method. A feedrate optimization strategy is also proposed based on the developed cutting force model and tested effectively.

scholarly journals Cutting Force Modeling and Optimization in 3D Plane Surface Machining

1999 ◽  
Author(s):  
Hsi-Yung (Steve) Feng ◽  
Ning Su
Keyword(s):  
Cutting Force ◽  
Cutting Forces ◽  
End Milling ◽  
Plane Surface ◽  
Mechanistic Modeling ◽  
Surface Finishing ◽  
Force Model ◽  
Cutting Force Model ◽  
Ball End Milling ◽  
Finishing Machining

Abstract The prediction and optimization of cutting forces in the finishing machining of 3D plane surfaces using ball-end milling are presented in this paper. The cutting force model is developed based on the mechanistic modeling approach. This improved model is able to accurately predict the cutting forces for non-horizontal and cross-feed cutter movements typical in 3D finishing ball-end milling. Optimization of the cutting forces is used to determine both the tool path and the maximum feed rate in 3D plane surface finishing machining. The objective is to achieve highest machining efficiency and to ensure product quality. Experimental results have shown that the cutting force model gives excellent predictions of cutting forces in 3D finishing ball-end milling. The feasibility of the integrated process planning method has been demonstrated through the establishment of optimized process plans for the finishing machining of 3D plane surfaces.

3D Ball-End Milling Force Model Using Instantaneous Cutting Force Coefficients

2005 ◽  
Vol 127 (1) ◽  
pp. 1-12 ◽  
Author(s):  
Jeong Hoon Ko ◽  
Dong-Woo Cho
Keyword(s):  
Cutting Force ◽  
End Milling ◽  
Cutting Conditions ◽  
Force Model ◽  
Cutting Force Model ◽  
Cutting Force Coefficients ◽  
Milling Force ◽  
Ball End Milling ◽  
Force Coefficients ◽  
Instantaneous Cutting Force Coefficients

Application of a ball-end milling process model to a CAD/CAM or CAPP system requires a generalized methodology to determine the cutting force coefficients for different cutting conditions. In this paper, we propose a mechanistic cutting force model for 3D ball-end milling using instantaneous cutting force coefficients that are independent of the cutting conditions. The uncut chip thickness model for three-dimensional machining considers cutter deflection and runout. An in-depth analysis of the characteristics of these cutting force coefficients, which can be determined from only a few test cuts, is provided. For more accurate cutting force predictions, the size effect is also modeled using the cutter edge length of the ball-end mill and is incorporated into the cutting force model. This method of estimating the 3D ball-end milling force coefficients has been tested experimentally for various cutting conditions.

A Mechanistic Cutting Force Model for 3D Ball-end Milling

2000 ◽  
Vol 123 (1) ◽  
pp. 23-29 ◽  
Author(s):  
Hsi-Yung Feng ◽  
Ning Su
Keyword(s):  
Cutting Force ◽  
Cutting Forces ◽  
End Milling ◽  
Chip Thickness ◽  
Milling Process ◽  
Force Model ◽  
Cutting Force Model ◽  
Ball End Milling ◽  
End Milling Process ◽  
Force Relationship

This paper presents an improved mechanistic cutting force model for the ball-end milling process. The objective is to accurately model the cutting forces for nonhorizontal and cross-feed cutter movements in 3D finishing ball-end milling. Main features of the model include: (1) a robust cut geometry identification method to establish the complicated engaged area on the cutter; (2) a generalized algorithm to determine the undeformed chip thickness for each engaged cutting edge element; and (3) a comprehensive empirical chip-force relationship to characterize nonhorizontal cutting mechanics. Experimental results have shown that the present model gives excellent predictions of cutting forces in 3D ball-end milling.

Research on Multi-Axis High Speed Machining Milling Force of Aeroengine Impeller

2010 ◽  
Vol 455 ◽  
pp. 87-91
Author(s):  
Y.Y. Guo ◽  
Can Zhao ◽  
Wei Gang Du
Keyword(s):  
Cutting Force ◽  
High Speed ◽  
End Milling ◽  
Model Simulation ◽  
Differential Method ◽  
Force Model ◽  
High Speed Machining ◽  
Cutting Force Model ◽  
Ball End Milling ◽  
The Relationship

On the basis of the ball-end milling feature during high-speed machining impeller, the relationship between cutting force and chips is analyzed in this paper. The model of ball-end milling cutter cutting force is founded through differential method. And the coefficients solution of cutting force model is expounded. Besides, the coefficients solution and the cutting force model simulation are implemented by the software Matlab.

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