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J. Manuf. Mater. Process. 2018, 2(2), 21; https://doi.org/10.3390/jmmp2020021

Influence of NC Program Quality and Geometric Errors of Rotary Axes on S-Shaped Machining Test Accuracy

1
Department of Mechanical Engineering, Kobe University, 1-1 Rokko-dai, Nada, Kobe 657-8501, Japan
2
Department of Mechanical Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi, Osaka 535-8585, Japan
*
Author to whom correspondence should be addressed.
Received: 9 February 2018 / Revised: 14 March 2018 / Accepted: 14 March 2018 / Published: 21 March 2018
(This article belongs to the Special Issue Precision Manufacturing)
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Abstract

An S-shaped machining test is proposed for the ISO 10791-7 standard to verify the performance of five-axis machining centers. However, investigation of the factor that has the most influence on the geometrical accuracy of finished S-shaped workpieces has not been undertaken. Determination of the influence of NC program tolerance and geometric errors concerning the rotary axes on the accuracy of the finished S-shaped workpiece forms the main objective of the study. Actual cutting experiments as well as simulations were performed during the proposed investigation. Our results clarify that NC-program tolerance has a significant influence on the end quality of the machined surface. Although geometric errors pertaining to rotary axes also have a significant influence on machined-surface quality, it is difficult to evaluate the influence of each individual error, because all geometric errors make glitches at the same point on the machined surface. The proposed S-shaped machining test can be used to provide a complete demonstration of available machining techniques. View Full-Text
Keywords: five-axis machining center; S-shaped machining test; geometric error; NC program; machined shape five-axis machining center; S-shaped machining test; geometric error; NC program; machined shape
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Sato, R.; Shirase, K.; Ihara, Y. Influence of NC Program Quality and Geometric Errors of Rotary Axes on S-Shaped Machining Test Accuracy. J. Manuf. Mater. Process. 2018, 2, 21.

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