A feedrate optimization method for CNC machining based on chord error revaluation and contour error reduction

2020 ◽  
Vol 111 (11-12) ◽  
pp. 3437-3452
Author(s):  
Baoquan Liu ◽  
Mengjie Xu ◽  
Jianping Fang ◽  
Yong Shi
Keyword(s):  
Optimization Method ◽  
Error Reduction ◽  
Cnc Machining ◽  
Contour Error ◽  
Chord Error ◽  
Feedrate Optimization

Optimized NURBS Based G-Code Part Program for High-Speed CNC Machining

2014 ◽  
Author(s):  
Sai Ashish Kanna ◽  
Andres Tovar ◽  
Jason Soungjin Wou ◽  
Hazim El-Mounayri
Keyword(s):  
Code Generation ◽  
High Speed ◽  
Tool Path ◽  
Optimization Method ◽  
Cnc Machining ◽  
Part Program ◽  
Tool Trajectory ◽  
Minimum Number ◽  
G Code ◽  
Gear Profile

This work presents the automation of high-accuracy CNC tool trajectory planning from CAD to G-code generation through optimal NURBs surface approximation. The proposed optimization method finds the minimum number of NURBS control points for a given admissible theoretical cord error between the desired and manufactured surfaces. The result is a compact part program that is less sensitive to data starvation than circular and spline interpolations with potential better surface finish. The proposed approach is demonstrated with the tool path generation of an involute gear profile.

Tracking error reduction in CNC machining by reshaping the kinematic trajectory

2013 ◽  
Vol 26 (5) ◽  
pp. 817-835 ◽  
Author(s):  
Jianxin Guo ◽  
Qiang Zhang ◽  
Xiao-Shan Gao
Keyword(s):  
Tracking Error ◽  
Error Reduction ◽  
Cnc Machining

A review of contouring-error reduction method in multi-axis CNC machining

2018 ◽  
Vol 125 ◽  
pp. 34-54 ◽  
Author(s):  
Zhen-yuan Jia ◽  
Jian-wei Ma ◽  
De-ning Song ◽  
Fu-ji Wang ◽  
Wei Liu
Keyword(s):  
Reduction Method ◽  
Error Reduction ◽  
Cnc Machining ◽  
Contouring Error

Research on Subdivision Interpolation for High Speed CNC Applications

2011 ◽  
Vol 141 ◽  
pp. 449-454
Author(s):  
Jing Chuan Dong ◽  
Qing Jian Liu ◽  
Tai Yong Wang
Keyword(s):  
High Speed ◽  
Tool Path ◽  
Tracking Error ◽  
Linear Interpolation ◽  
Cnc Machining ◽  
Contour Error ◽  
Interpolation Scheme ◽  
Simulation Results ◽  
Cnc Controller ◽  
Better Than

High speed CNC machining relies on the smooth interpolation of tool path in order to prevent impact and vibration. We present a new interpolation scheme for CNC controller based on 6-point subdivision. The subdivision interpolation improves the smoothness of the original trajectory, while maintaining the accuracy. The algorithm is simple and effective, and therefore it is suitable for real-time execution in CNC controllers. Simulation results show that the proposed method performs better than linear interpolation, since the tracking error and contour error is reduced.

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