Effect of Electrospun Nanofibrous Film on Drilling-Force Reduction for Fine-Hole Drilling in Metals

Yusuke Date; Haruhi Sunaba; Yuki Oyama; Takahiro Sato; Takashi Yamawaki; Mika I. Umeda; Takatoshi Fujii; Eiichi Hino; Chikashi Naito; Kaoru Aoki; Minoru Goto

doi:10.2474/trol.19.381

Short Communication

Effect of Electrospun Nanofibrous Film on Drilling-Force Reduction for Fine-Hole Drilling in Metals

Yusuke Date, Haruhi Sunaba, Yuki Oyama, Takahiro Sato, Takashi Yamawaki, Mika I. Umeda, Takatoshi Fujii, Eiichi Hino, Chikashi Naito, Kaoru Aoki, Minoru Goto

Author information

Yusuke Date
https://orcid.org/0009-0001-8482-5186
Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College
Haruhi Sunaba
Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College
Yuki Oyama
Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College
Takahiro Sato
Tottori Institute of Industrial Technology
Takashi Yamawaki
Technology and Education Support Center, National Institute of Technology, Yonago College
Mika I. Umeda
Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College
Takatoshi Fujii
Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College
Eiichi Hino
Technology and Education Support Center, National Institute of Technology, Yonago College
Chikashi Naito
MECC CO., LTD.
Kaoru Aoki
Chemistry and Biochemistry Division, Department of Integrated Engineering, National Institute of Technology, Yonago College
Minoru Goto
Department of Mechanical Engineering, National Institute of Technology, Ube College

Keywords: electrospinning, nanofiber, membrane, polymer, solid lubricants, oil free, micro drill, run-out

JOURNAL OPEN ACCESS

2024 Volume 19 Issue 4 Pages 381-386

DOI https://doi.org/10.2474/trol.19.381

Details

Abstract

The effect of an electrospun (ES) film on the reduction of micro-drilling cutting force required for SUS304 plate was investigated. ES films were fabricated using the electrospinning method with polyvinyl alcohol (PVA) and polymethyl methacrylate (PMMA) as raw materials. The results of ATR-FTIR spectroscopy showed that there was no difference in the composition of the raw polymers and the fabricated ES films, and that the polymers were not altered. The diameters of the PVA and PMMA nanofibers were approximately 0.069–0.30 and 7.2 μm, respectively. The drill thrust force and run-out when using the nanofiber ES films were lower than those on an uncoated JIS SUS304 plate during the drilling. High-speed camera images showed that PMMA nanofibers pulverized by the cutting process adhered to the drilling tool surface and were guided into the drilling hole. This suggests that ES films made of organic polymer compounds, such as PMMA, are promising candidates for stable drilling, as they suppress drill run-out and act as an excellent lubricant during cutting.

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