Machining-Based Thermal Error Analysis of CFRP-Structured Machine Tool

7 Pages Posted: 13 Nov 2020

See all articles by Makoto Kato

Makoto Kato

Keio University

Yuji Mizoguchi

Research & Development, OKUMA Corporation

Kazumasa Kono

Research & Development, Makino Milling Machine Co.,Ltd

Yasuhiro Kakinuma

Department of System Design Engineering, Faculty of Science & Technology, Keio University

Date Written: November 3, 2020

Abstract

New structural materials, such as carbon fiber reinforced plastic (CFRP), are used in modern machine tools for energy efficiency improvement by weight reduction. Furthermore, CFRP can manipulate thermal expansion with the fiber orientation, and this is expected to reduce thermal errors. In this research, the machining accuracy of CFRP-structured machine tools was investigated. A novel machining-based thermal error analysis was performed by cutting a test piece at specific intervals, assuming a long operation time including idle time. By measuring the geometric errors of the machined test piece, the thermal errors and the effectiveness of the CFRP application were evaluated. It was observed that CFRP-structured machine tools lead to the suppression of thermal errors, although the behavior of thermal deformation indicates mechanical anisotropy in comparison with a conventional machine tool.

Keywords: Carbon fiber reinforced plastics; Structures; Machining test; Thermal errors; Form accuracy

Suggested Citation

Kato, Makoto and Mizoguchi, Yuji and Kono, Kazumasa and Kakinuma, Yasuhiro, Machining-Based Thermal Error Analysis of CFRP-Structured Machine Tool (November 3, 2020). Proceedings of the Machining Innovations Conference (MIC) 2020, Available at SSRN: https://ssrn.com/abstract=3724093 or http://dx.doi.org/10.2139/ssrn.3724093

Makoto Kato (Contact Author)

Keio University ( email )

2-15-45 Mita
Minato-ku
Tokyo, 108-8345
Japan

Yuji Mizoguchi

Research & Development, OKUMA Corporation ( email )

Kazumasa Kono

Research & Development, Makino Milling Machine Co.,Ltd ( email )

Yasuhiro Kakinuma

Department of System Design Engineering, Faculty of Science & Technology, Keio University ( email )

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