A new approach to contour error control in high speed machining

Rahaman, Mostafizur; Seethaler, Rudolf; Yellowley, I.

doi:10.1016/j.ijmachtools.2014.09.002

Cited by 46 publications

(17 citation statements)

References 30 publications

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“…10 that the velocities of translational and rotary axes reach 150 mm/s and 1.9 rad/s, respectively. Analogously to existing contouring error controllers [8,10,18,19,27,33,34], air cutting is performed in experiments instead of real cutting. Because contouring error control is generally used at the finishing machining stage, the cutting loads are relatively low.…”

Section: Methodsmentioning

confidence: 99%

“…Zhu et al [7] proposed a real time contouring error estimator based on the second-order Taylor approximant of the point-to-curve distance function. Moreover, some advanced controllers were combined with CCC to improve the contouring performance of CNC platform, such as robust tracking controller [8], Taylor series expansion error compensator [9], generalized cross-coupled controller [10], and hierarchical optimal contour controller [11], etc.…”

Section: Introductionmentioning

confidence: 99%

“…Although the existing works [5][6][7][8][9][10][11] can reduce contouring errors, they were confined to two-or three-axis machines with only translational joints. The nonlinear kinematics of five-axis machines complicate the contouring error control, which thus needs more sophisticate controller design [12].…”

Section: Introductionmentioning

confidence: 99%

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Contouring error control of the tool center point function for five-axis machine tools based on model predictive control

Yang

Zhang

Ding

2016

Int J Adv Manuf Technol

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In five-axis machining processes, tool center point (TCP) control is often used to adjust the orientation of the ball end milling while maintaining constant tool center point coordinates in the workpiece frame. Therefore, TCP contouring error decreases the quality of the machined surface, but very few efforts have been made so far to minimize the contouring error of five-axis TCP by feedback control. To this end, a model predictive control (MPC) method is developed here for rolling optimization. More precisely, the contouring error model of five-axis TCP function is developed, where a Jacobian matrix is used to approximate the relationship between the contouring error and five drivers' tracking errors. The MPC algorithm is afterwards derived, where constraints of control signals are considered as well to avoid violation of the power limitation of the drivers. Finally, the proposed MPC method is examined by extensive experiments using testing tool path of ISO 10791-6: 2014 to verify its effectiveness and superiority.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Contouring error control of the tool center point function for five-axis machine tools based on model predictive control

Yang

Zhang

Ding

2016

Int J Adv Manuf Technol

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“…On this basis, variable gain CCC is further proposed [4,5]. Since then, more research studies on optimized CCC have been reported [6][7][8][9][10]. In CCC, the multiaxis control system is considered as organic whole where internal components are interconnected.…”

Section: Introductionmentioning

confidence: 99%

Contour Tracking Control Based on Extended State Observer for Multiaxis Motion System

Wang

Zhou

Wang

2020

Mathematical Problems in Engineering

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In the contouring process, the trajectory generated by the computer numerical control (CNC) machine tool is a result of the multiaxis coordinated motion. The contour error has a direct impact on the accuracy of the machined product. To obtain higher contouring accuracy of the multiaxis motion control system, this paper presents a cross-coupled control approach based on the extended state observer sliding mode control. First, a single-axis sliding mode controller is designed, and an extended state observer is used to estimate system disturbances and improve the system robustness. Then, the cross-coupled control approach handles the coordinated motion of multiple axes to improve the contour control accuracy. Next, a simulation study is conducted on the three-axis motion platform. Its result shows that the control algorithm is effective in reducing tracking errors and contour errors.

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“…Zhang et al 15 put forward a twolayered modeling and compensation scheme to reduce the contour error of three-dimensional motion control system. Rahaman et al 16 developed an approach to combine the cross-coupled control with frequency modulated interpolation in high-speed machining.…”

Section: Introductionmentioning

confidence: 99%

Cross-coupling control method for five-axis computer numerical control machine with dual rotary tables

Zhao

Zhuang

Zheng

et al. 2017

Advances in Mechanical Engineering

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The contour error cross-coupling control is very important to improve contour accuracy for the five-axis computer numerical control machine. The change in cutter orientation can cause the nonlinear motion of cutter tip, so the contour error calculation and compensation are very complex. For the five-axis computer numerical control machine with dual rotary tables, the forward kinematics model and inverse kinematics model are set up, and the influence laws of feed axis deviation to cutter tip deviation and cutter orientation deviation are studied. Then the simple and accurate calculation models for cutter tip contour error and cutter orientation contour error are established. Finally, the novel contour error cross-coupling control method based on kinematics model is developed. The experimental results show that the developed method can effectively improve contour accuracy of the five-axis computer numerical control machine.

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A new approach to contour error control in high speed machining

Cited by 46 publications

References 30 publications

Contouring error control of the tool center point function for five-axis machine tools based on model predictive control

Contouring error control of the tool center point function for five-axis machine tools based on model predictive control

Contour Tracking Control Based on Extended State Observer for Multiaxis Motion System

Cross-coupling control method for five-axis computer numerical control machine with dual rotary tables

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