Fabrication of Shapes with Overhang Using Micro-Boring Tools

Kai Egashira; Kazuyuki Harada; Keishi Yamaguchi; Minoru Ota

doi:10.4028/www.scientific.net/AMR.1017.485

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1017Fabrication of Shapes with Overhang Using...

Fabrication of Shapes with Overhang Using Micro-Boring Tools

Abstract:

The boring of microholes has been carried out using micro-turning tools. There is a limitation, however, on machinable shapes using the tools employed therein, with the fabrication of shapes with an overhang being impossible. The fabrication of such shapes was therefore attempted in the present study using cemented tungsten carbide micro-boring tools processed by electrical discharge machining. Inner-grooving by turning was attempted in 0.15-mm-diameter holes, resulting in shapes with an overhang, such as a reverse-tapered hole. Furthermore, inner-grooving using tools moving in planetary motion was also attempted in 0.2-mm-diameter holes drilled in workpieces that were difficult to deal with by turning.

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Periodical:

Advanced Materials Research (Volume 1017)

Pages:

485-488

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1017.485

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Online since:

September 2014

Authors:

Kai Egashira*, Kazuyuki Harada, Keishi Yamaguchi, Minoru Ota

Keywords:

Inner-Grooving, Micro-Boring Tool, Planetary Motion, Shape with Overhang

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References

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