Application of Ant Colony Algorithm to Volumetric Thermal Error Modeling and Compensation of a CNC Machine Tool

Abstract:

Volumetric errors are the major contributor to the dimensional errors of a workpiece in precision machining. Error compensation technique is a cost-effective way to reduce volumetric errors. Accurate modeling of volumetric errors is a prerequisite of error compensation. In this paper, a volumetric error model was proposed by using neural networks based on ant colony algorithm. Finally, a volumetric error compensation system was developed based on the proposed model, and which has been applied to a CNC machine tool in daily production. The results show that the volumetric errors are reduced and the machining accuracy of the machine tool is improved.

• Periodical: Applied Mechanics and Materials (Volumes 170-173)
• Pages: 3487-3490
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.170-173.3487
• Online since: May 2012
• Authors: Qian Jian Guo, Qing Wen Qu, Jian Guo Yang
• Keywords: Ant Colony Algorithm (ACA), CNC Machine Tool, Error Compensation, Thermal Error Modeling, Volumetric Error

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