Search Results 1-20 of 118

  • Microstructure, topography, surface roughness, fractal dimension, internal and marginal adaptation of pressed and milled lithium-disilicate monolithic restorations

    Schestatsky Ricardo , Zucuni Camila Pauleski , Dapieve Kiara Serafini , Burgo Thiago Augusto Lima , Spazzin Aloísio Oro , Bacchi Ataís , Valandro Luiz Felipe , Pereira Gabriel Kalil Rocha

    … To characterize the effect of two processing techniques (pressing and CAD/CAM — Computer Aided Design/Computer Aided Machining) of lithium-disilicate (LD) based crowns on the microstructure, topography, roughness, fractal dimension, internal and marginal adaptation.</p><p><i>Methods:</i> …

    Journal of Prosthodontic Research 64(1), 12-19, 2019

    J-STAGE 

  • Evaluation of AFM polishing technique by optical fiber end face nano-micromachining  [in Japanese]

    MATSUI Shinsuke , KIMURA Kenoshin

    … <p>Nano-micro scratch machining was done by Atomic force microscopy (AFM) to investigate the fundamental characteristics of the polishing. … The machining was done with an AFM tip which can be assumed to a nano-shape cutting edge of an abrasive, and with the machining load which is controlled by the AFM cantilever system. …

    The Proceedings of Conference of Kanto Branch 2019.25(0), 18D10, 2019

    J-STAGE 

  • A Nano-scale Cutting Method by Vibration  [in Japanese]

    RUI YANG , OGURA Ichiro , YABUNO Hiroshi , SAWADA Hiroyuki , ASHIDA Kiwamu

    … For improving the efficiency of the Nano-scale machining, we propose a vibration cutting method by using a microcantilever as a cutting tool instead of the usually used scratch cutting method. … In a series of machining experiment, we employ two kinds of excitation methods based on sinusoidal excitation and feedback control. …

    The Proceedings of Ibaraki District Conference 2018.26(0), 708, 2018

    J-STAGE 

  • Modelling of Material Removal in Abrasive Flow Machining

    Uhlmann Eckart , Roßkamp Simon

    … Often, these workpieces must be finished after machining. … An appropriate solution is abrasive flow machining (AFM), in which a highly viscous fluid with abrasive grains is used. … Despite the wide usage of AFM in industry, the knowledge about the fundamentals of abrasive flow machining processes is limited. … Owing to this progress, predictions of the processing results of AFM will be possible.</p> …

    International Journal of Automation Technology 12(6), 883-891, 2018

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  • Development of nano-scale mechanical cutting technique by using vibrational micro cantilever tool  [in Japanese]

    Jiang Zhenyan , Ogura Ichiro , Sawada Hiroyuki , Ashida Kiwamu , Tanaka Yudai , Yabuno Hiroshi

    … <p>AFMのマイクロカンチレバーを用いた微小切削において,工具の振動切削で加工能率の向上を目指す.本報告では加工中,安定に共振するレバー形状について検討し,実験と解析によってその形状を求めたことについて発表する.初期荷重400μNで15.6kHz近傍の接触振動が行えることを確認した.この工具で50~800μNの荷重条件で切削を行い,振動切削による切削痕が通常の場合に比べてより深くなることを確認した. …

    Proceedings of JSPE Semestrial Meeting 2018S(0), 45-46, 2018

    J-STAGE 

  • Basic study on AFM probe using a low rigidity spring  [in Japanese]

    SAWANO Hiroshi , MATSUMOTO Takuya

    … <p>Demands for machining of three-dimensional (3D) complex geometries over a large area with nanometer scale accuracy have recently increased in the various industrial sectors. … In order to meet such requirements, it is necessary to realize not only a machine tool with nanometer scale machining accuracy, but also a coordinate measuring machine with a nanometer scale measuring resolution for evaluating the machined parts profile. …

    Transactions of the JSME (in Japanese) 83(855), 17-00127-17-00127, 2017

    J-STAGE 

  • High-frequency vibration machining of single layer graphene by AFM probe  [in Japanese]

    芦葉 直樹

    大学院研究年報 理工学研究科編 (46), 2016-08-01

    IR 

  • High-Precision Groove Machining and the Modeling of Single Layer Graphene Using Vibration of the Stage and Probe of AFM  [in Japanese]

    ASHIBA Naoki , HAMAZUME Sho , DEMURA Kazuya , IHARA Tohru

    … Since, the traditional scratch machining method was not proving to be very suitable in this regard, in this study, nanometer-scale vibration machining was carried out with a diamond-coated probe as a machining tool, and SLG on a SiO2 substrate was used as the workpiece. …

    Journal of the Japan Society for Precision Engineering 82(8), 764-768, 2016

    J-STAGE 

  • Observation of contact behavior in nano-machining with a vibrational microcantilever tool  [in Japanese]

    DEI Daisuke , KASAGAWA Masataka , ASHIDA Kiwamu , YABUNO Hiroshi , FUJISAWA Satoru , KURODA Masaharu

    本研究ではマイクロカンチレバーに振動を付与して加工を行う方法に注目し,実験により加工時のマイクロカンチレバーの振動現象を明らかにすることを目的とした.加工の実現に向けて試料とマイクロカンチレバーの距離に応じたダイナミクスを把握するために,強制加振状態でのフォースカーブ(動的フォースカーブ)を計測した.この結果から,マイクロカンチレバーの振動形態を(a)引力タッピング,(b)斥力タッピング,(c)押 …

    Journal of the Japan Society for Abrasive Technology 59(9), 521-524, 2015

    J-STAGE 

  • 706 Nano-scale cutting by Atomic Force Microscope  [in Japanese]

    DEI Daisuke , KASAGAWA Masataka , ASHIDA Kiwamu , YABUNO Hiroshi

    … In this study, vibrational assisted nano-scale cutting is performed by Atomic Force Microscope (AFM). …

    The Proceedings of Ibaraki District Conference 2015.23(0), 71-72, 2015

    J-STAGE 

  • Nano-Micro Machining of Optical fiber end plane with AFM  [in Japanese]

    松井 伸介 , 梅村 茂 , 佐藤 天哉

    材料の科学と工学 : 日本材料科学会誌 51(1), 28-32, 2014

  • Development of a Non-Rigid Micro-Scale Cutting Mechanism Measuring the Cutting Force Using an Optical Lever

    Herrera-Granados German , Ashida Kiwamu , Ogura Ichiro , Okazaki Yuichi , Morita Noboru , Hidai Hirofumi , Matsusaka Souta , Chiba Akira

    … Based on the control principle of the nano-cutting mechanism using an Atomic Force Microscope (AFM), in the newly developed system, a single crystal diamond tool is mounted at the free edge of a cantilever beam and is used for the removal of material. … During the cutting process, the cantilever undergoes a deformation that is required for the implementation of a machining force feedback control. …

    International Journal of Automation Technology 8(6), 903-911, 2014

    J-STAGE 

  • Groove Machining of Monolayer Graphene by Atomic Force Microscope  [in Japanese]

    Ashiba Naoki , Demura Kazuya , Ihara Tohru

    … グラフェンはヤング率が1TPaと高いことから近年注目されているナノシートである.しかし,高ヤング率であることからナノスケールでの微細加工が難しく,その加工技術が求められている.そこで我々はAFMを用いた機械的溝加工に着目した.今回はAFMのモードの1つであるLFMモードを用いた除去判別手法によって,単層グラフェンの加工痕を確認できたので報告する. …

    Proceedings of JSPE Semestrial Meeting 2014A(0), 797-798, 2014

    J-STAGE 

  • Micro-scale cutting using an elastic leaf spring type tool holder:Effects of cutting speed  [in Japanese]

    Herrera German , Ashida Kiwamu , Ogura Ichiro , Okazaki Yuichi , Morita Noboru , Hidai Hirofumi , Matsusaka Souta , Chiba Akira

    … Based on the control principle of the nano-cutting mechanism using an Atomic Force Microscope (AFM), in this system, a single crystal diamond tool is mounted at the free edge of a cantilever beam, and it is used for the removal of the material. … On the other hand, during the cutting process, the cantilever presents a deformation that is required for the implementation of a machining force feedback control. …

    Proceedings of JSPE Semestrial Meeting 2014S(0), 913-914, 2014

    J-STAGE 

  • Study on micromachining using diamond array tool:4<sup>th</sup> report : High efficiency micromachining using AFM cantilever  [in Japanese]

    TAKANO Noboru , SONOBE Syuya , YAMADA Shigeru , MORITA Noboru

    … 本研究では,原子間力顕微鏡(AFM)機構と加工用AFMカンチレバーを用いて,高能率な微細加工を行うことを目的としている.本報では,1本のカンチレバーに複数の多結晶ダイヤモンド切れ刃を具備した多刃カンチレバーと,剛性の異なるカンチレバーを複数本有するマルチカンチレバーの2種類の加工用AFMカンチレバーを作製し,Ni-P合金めっきと単結晶シリコン(100)に対して加工 …

    Journal of the Japan Society for Abrasive Technology 58(8), 509-514, 2014

    J-STAGE 

  • Study on micromachining using diamond array tool:3<sup>rd</sup> report : Machining of micro V-groove using sharpened cutting edge of AFM cantilever by FIB  [in Japanese]

    TAKANO Noboru , SHIMIZU Hiroshi , YAMADA Shigeru , MORITA Noboru

    … 本研究では,原子間力顕微鏡(AFM)機構と加工用AFMカンチレバーを用いて,微細かつ高精細なV溝加工を行うことを目的としている.本報では,集束イオンビームを用いて,ダイヤモンド切れ刃の先端角,すくい角,横すくい角を設けた加工用AFMカンチレバーを作製し,Ni-P合金に対して溝加工実験を行い,切れ刃形状が加工溝性状に及ぼす影響について検討を行った.その結果, …

    Journal of the Japan Society for Abrasive Technology 58(7), 446-450, 2014

    J-STAGE 

  • Characterization of Atomic Force Machining on Optical-fiber End Plane  [in Japanese]

    松井 伸介 , 梅村 茂

    千葉工業大学研究報告. 理工編 (60), 29-34, 2013

  • Basic study on micro-nano-scale cutting applying machining force control system  [in Japanese]

    Herrera Granados German , Ashida Kiwamu , Ogura Ichiro , Okazaki Yuichi , Morita Noboru , Hidai Hirofumi , Matsusaka Souta

    … The control principle of this mechanism is based on the nano-cutting technique using an Atomic Force Microscope (AFM); …

    Proceedings of JSPE Semestrial Meeting 2013S(0), 319-320, 2013

    J-STAGE 

  • The influence on roughness of surface polished by abrasive water jet with ultra sonic vibration  [in Japanese]

    Nishimori Yuichi , Azuma Kingo

    噴流を用いた技術は様々な場面で活用され,なかでもアブレシブジェットは切削加工や表面研磨に用いられている.しかし,アブレシブジェットを積極的に脈動させる事例の報告は少なく,その効果は明らかではない.そこで,流路に設置したピエゾアクチュエータに超音波領域のパルス電圧を印加してジェット脈動,液滴化させた.今回は脈動させたアブレシブジェットが研磨面に及ぼす影響について実験的に調べた結果を報告する.

    Proceedings of JSPE Semestrial Meeting 2013S(0), 115-116, 2013

    J-STAGE 

  • Ductile mode cutting on glass using a non-rigid cutting mechanism  [in Japanese]

    Herrera German , Ashida Kiwamu , Ogura Ichiro , Okazaki Yuichi , Morita Noboru , Hidai Hirofumi , Matsusaka Souta

    … A non-rigid cutting mechanism has been developed for the machining of materials in micro/nano scale. …

    Proceedings of JSPE Semestrial Meeting 2013A(0), 861-862, 2013

    J-STAGE 

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