Journal Article10.1080/00207540210124057
Machining error compensation using radial basis function network based on CAD/CAM/CAI integration concept
M. W. Cho,T. I. Seo +1 more
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TL;DR: In this article, a machining error compensation methodology using an Artificial Neural Network (ANN) model trained by an inspection database of the On-Machine-Measurement (OMM) system is presented.
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Abstract: This paper presents a machining error compensation methodology using an Artificial Neural Network (ANN) model trained by an inspection database of the On-Machine-Measurement (OMM) system. This is an application of the CAD/CAM/CAI integration concept. First, to improve machining and inspection accuracies, the geometric errors of a three-axis CNC machining centre and the probing errors are compensated using a closed-loop configuration. Then, a workpiece is machined using the machining centre, and the error distributions of the machined surface are inspected using OMM. In order to analyse efficiently the machining errors, two characteristic error parameters, W err and D err , are defined. Subsequently, these parameters are modelled using a Radial Basis Function (RBF) network approach as an ANN model. Based on the RBF network model, the tool path is corrected to effectively reduce the errors using an iterative algorithm. In the iterative algorithm, the changes of the cutting conditions can be identified accor...
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Citations
A review of machine tool accuracy enhancement through error compensation in serial and parallel kinematic machines
Samir Mekid,T.I. Ogedengbe +1 more
TL;DR: These studies extensively are reviewed and the issues and challenges for machine tool accuracy enhancement leading to zero defects parts are identified.
58
Integrated Inspection and Machining for Maximum Conformance to Design Tolerances
TL;DR: In this article, an error decomposition technique is developed to model machining errors caused by the systematic and non-systematic errors in the machine tool, which is used to adaptively plan the final machining cuts, based on inspection feedback, to enhance the geometric accuracy of the final product.
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Mechanical model of errors of probes for numerical controlled machine tools
Michał Jankowski,Adam Wozniak +1 more
TL;DR: A theoretical model of errors of probes for CNC machine tools is presented, which takes into account such unique features of the machine tool probes as the transducer with support on the whole circumference and as wireless communication.
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Machine tool probes testing using a moving inner hemispherical master artefact
TL;DR: In this article, a new method of testing the probe accuracy, which does not employ a machine tool, is presented, which employs a moving master artefact in the form of an inner hemisphere.
20
An accuracy evolution method applied to five-axis machining of curved surfaces
Jun Zha,Nagore Villarrazo,G. Martínez de Pissón,Yipeng Li,Huijie Zhang,L.N. López de Lacalle +5 more
TL;DR: In this paper , the authors proposed an evolution method to improve the machining accuracy of curved surfaces by compensating for machining errors after the first part through profile error measurement, which can be applied directly after the manufacturing programming is fully developed, achieving the product with the minimum number of iterations.
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A Control System to Improve the Accuracy of Finished Surfaces in Milling
Tohru Watanabe,S. Iwai +1 more
TL;DR: In this paper, a geometric adaptive control system to compensate for errors in the finished surface due to tool deflection generated by milling operations is presented, and the effects of cutting forces upon the shape of the final surface are analyzed.
64
CNC machine tool interpolator with path compensation for repeated contour machining
Chih-Ching Lo,Chao-Yin Hsiao +1 more
TL;DR: This paper presents a CNC machine tool interpolator with a path compensation method for a repeated contour machining process that includes contour-error calculation, data extraction and contours-error interpolation algorithms so that the previous contours machining result can be introduced to improve the accuracy of the subsequent repeated machining.
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