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Dive into the research topics where Kenzo Ebihara is active.

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Featured researches published by Kenzo Ebihara.


CIRP Annals | 2005

Improvement of Machining Accuracy of 5-Axis Control Ultraprecision Machining by Means of Laminarization and Mirror Surface Finishing

Tomohiko Kawai; Kenzo Ebihara; Yoshimi Takeuchi

Air bearings are often used in ultraprecision machine tools requiring high accuracy. With increasing the high accuracy for machine tools, it is required to pay attention to microvibration with nanometer order. The fluctuation in compressed air applied to air bearings causes the air turbulence, which results in the microvibration. The study presents the laminarization by the optimal design of piping and air bearing surfaces as well as mirror surface finishing, so that the laminarization can be realized to suppress the microvibration. From experimental results, it is found that the surface roughness of workpieces can be drastically improved by using a revised ultraprecision machining center.


Journal of The Japan Society for Precision Engineering | 2009

Super Nano Machine ROBONANO

Masayuki Hamura; Kenzo Ebihara

従来,機械加工による超精密加工は,レンズの金型加工 などが中心であり,加工機は 2,3 軸の超精密旋盤が大半 であった.また,超精密加工では,一般に高い精度が要求 されて加工が長時間となる.このため,超精密加工を行っ た後,それを使って超精密部品を量産する金型などの用途 でなければ,コストが合わないケースが多かった.しかし 近年,高付加価値の部品加工の需要増に伴い,量産部品に 多軸の超精密加工を適用する需要が増加している. また,これまで MEMS 技術を使用した分野において も,加工形状や材料の制約から,機械加工に転換する例が 登場してきた.MEMS 技術に比べて,機械加工による超 精密加工では,加工形状の自由度の高さ,材料の選択肢の 多さのみならず,設備投資も小規模で済むメリットがあ る.また,MEMS 技術から機械加工への単なる転換でな く,MEMS 技術と機械加工を組み合わせて各々の特徴を 生かした,新たな商品開発の試みも行われている. このように,超精密加工を必要とする新たな需要が日々 生まれる中で,様々な加工用途に柔軟に対応できる多軸の 超精密加工機に対する期待が高まっている.


Archive | 2002

Linear driving device

Kiyoshi Sawada; Tomohiko Kawai; Kenzo Ebihara


Archive | 2008

Machine tool having function of correcting mounting error through contact detection

Yonpyo Hon; Kenzo Ebihara; Tomohiko Kawai


Archive | 2008

Machine tool having workpiece reference position setting function by contact detection

Yonpyo Hon; Kenzo Ebihara; Tomohiko Kawai


Archive | 2007

Linear drive apparatus

Tomohiko Kawai; Kenzo Ebihara; Osamu Matsuura


Archive | 2009

Method of measuring shape of workpiece by using on-board measuring machine for carrying out temperature drift correction and machine tool having on-board measuring machine

Yonpyo Hon; Kenzo Ebihara; Akira Yamamoto; Masayuki Hamura


Archive | 2007

Machine tool having function of detecting contact between tool and workpiece

Yonpyo Hon; Kenzo Ebihara; Tomohiko Kawai


Archive | 2009

Machine tool system for measuring shape of object to be measured by using on-board measuring device

Yonpyo Hon; Kenzo Ebihara; Akira Yamamoto; Masayuki Hamura


Archive | 2008

CONTACT TYPE MEASURING INSTRUMENT

Yonpyo Hon; Kenzo Ebihara; Akira Yamamoto; Masayuki Hamura

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