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IJAT Vol.12 No.5 pp. 699-706
doi: 10.20965/ijat.2018.p0699
(2018)

Paper:

Motion Accuracy Enhancement of Five-Axis Machine Tools by Modified CL-Data

Ryuta Sato*,†, Shogo Hasegawa*, Keiichi Shirase*, Masanobu Hasegawa**, Akira Saito**, and Takayuki Iwasaki**

*Department of Mechanical Engineering, Kobe University
1-1 Rokko-dai, Nada, Kobe 657-8501, Japan

Corresponding author

**Production Engineering Center, IHI Corporation, Yokohama, Japan

Received:
April 2, 2018
Accepted:
June 23, 2018
Published:
September 5, 2018
Keywords:
five-axis machine tool, motion accuracy, dynamic synchronous error, CL-data, compensation
Abstract

The motion trajectories of machine tools directly influence the geometrical shape of machined workpieces. Hence, improvement in their motion accuracy is required. It is known that machined shape errors occurring in numerical control (NC) machine tools can be compensated for by modifying the CL-data, based on the amount of error calculated by the measurement results of the machined shape of the workpiece. However, by using this method the shape errors cannot be compensated accurately in five-axis machining, because the final machining shape may not reflect the motion trajectory of a tool owing to the motion errors of the translational and rotary axes. In this study, a modification method of the cutter location (CL)-data, based on the amount of motion errors of the tool center-point trajectory during the machining motion, is newly proposed. The simulation and experiment of a wing profile machining motion is performed, to confirm the effectiveness of the proposed method. From the results, we confirm that the motion accuracy can be significantly improved by applying the proposed method.

Cite this article as:
R. Sato, S. Hasegawa, K. Shirase, M. Hasegawa, A. Saito, and T. Iwasaki, “Motion Accuracy Enhancement of Five-Axis Machine Tools by Modified CL-Data,” Int. J. Automation Technol., Vol.12, No.5, pp. 699-706, 2018.
Data files:
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Last updated on Dec. 13, 2018