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Ultrashort pulse laser / diamond processing capability enhancement and process link optimization on sapphire capillary

Research Project

Project/Area Number 21H01231
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 18020:Manufacturing and production engineering-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Katahira Kazutoshi  国立研究開発法人理化学研究所, 開拓研究本部, 専任研究員 (70332252)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2023: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2022: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000)
Keywords多結晶ダイヤモンド / サファイア / フェムト秒レーザ / 超精密加工 / 微細加工 / レーザ加工 / 研削加工 / プラズマ / 超短パルスレーザ / 表面改質 / 微細工具 / 高品位加工 / 先進ダイヤモンド工具 / 超精密研削 / 微細ダイヤモンド工具 / 単結晶サファイア / 大気圧プラズマ / ミーリング加工
Outline of Research at the Start

レーザプラズマ加速器のキーパーツであるプラズマ導波路(サファイア毛細管)の超精密加工研究開発を実施する.超短パルス(フェムト秒)レーザおよびナノ多結晶ダイヤモンド工具等,それぞれの加工性能を強化/最大化させるとともに,それらのプロセスリンクを至適化することで,世界に類のない高精度長尺サファイア毛細管創製を実現する.高出力超短パルスレーザ加工機によるナノ多結晶ダイヤモンド工具の高品位迅速成形も試行する.サファイアの高精度微細加工は物理科学のみならず,生物・化学系,医学系の研究分野において幅広い普及が期待され,最先端の学術的横断研究領域を支える独自基盤ツールと成り得る.

Outline of Final Research Achievements

In this study, we conducted research to contribute to the development of high-precision sapphire capillaries by enhancing and maximizing the performance of both femtosecond laser forming and micro diamond milling. In particular, to achieve mirror-finish machining of sapphire efficiently and with high precision using micro PCD tools, the key is how to uniformly and optimally control the protrusion of diamond grains on the top surface of the tool. We used two types of tools: a tool with a flattened surface after truing after electric discharge forming, and a tool with protruding diamond grains ensured only by electric discharge forming. We investigated the differences in the machining characteristics of the two tools in detail to verify the effect that the presence or absence of protruding polycrystalline diamond grains has on the machined surface finish.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果物として小型のレーザプラズマ加速器が想定される.本装置は物理科学のみならず,生物・化学系,医学系の研究分野において幅広い普及が期待され,最先端の学術的横断研究領域を支える画期的な独自基盤ツールと成り得る.多岐に渡るニーズに応えるために,サファイアの三次元複雑形状および高品位表面性状を得るための超精密加工技術の開発が求められる.高出力超短パルスレーザおよび各種先進ダイヤモンド工具による超精密加工技術の強化自体が我が国のものづくり基盤の底上げをもたらすとともに,サファイア高精度微細加工自体が幅広いアプリケーションへの応用展開が期待できるため学術的・工業的波及効果は計り知れない.

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Influence of Abrasive Grain Protrusion on High-Quality Machining of Cemented Carbide Using PCD Ball End Mills2024

    • Author(s)
      Kazutoshi Katahira, Shinya Morita
    • Journal Title

      International Journal of Automation Technology

      Volume: 18 Issue: 2 Pages: 225-231

    • DOI

      10.20965/ijat.2024.p0225

    • ISSN
      1881-7629, 1883-8022
    • Year and Date
      2024-03-05
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PCDエンドミルによるサファイアの加工特性と工具リコンディショニングの効果2023

    • Author(s)
      片平和俊,瀧島玖実,森田晋也
    • Journal Title

      砥粒加工学会誌

      Volume: 67/3 Pages: 150-156

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] レーザ誘起湿式表面改質法により形成したステンレス鋼改質面のトライボロジー特性2023

    • Author(s)
      江面篤志, 片平和俊, 小茂鳥潤
    • Journal Title

      トライボロジスト

      Volume: 1/68 Pages: 36-41

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Surface modification of titanium alloy via atmospheric pressure nitrogen plasma assisted femtosecond laser irradiation2022

    • Author(s)
      Katahira Kazutoshi、Ezura Atsushi、Takesue Shogo、Komotori Jun
    • Journal Title

      CIRP Annals

      Volume: 71 Issue: 1 Pages: 469-472

    • DOI

      10.1016/j.cirp.2022.04.035

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Surface modification of titanium alloy via atmospheric pressure nitrogen plasma assisted femtosecond laser irradiation2022

    • Author(s)
      Kazutoshi Katahira, Atsushi Ezura, Shogo Takesue, Jun Komotori
    • Journal Title

      CIRP Annals - Manufacturing Technology

      Volume: 71/1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] フェムト秒パルスレーザによるダイヤモンド工具成形2021

    • Author(s)
      片平和俊,小河誉典,青山英樹,山崎和雄
    • Journal Title

      電気加工学会誌

      Volume: 55/139 Pages: 56-63

    • Related Report
      2021 Annual Research Report
  • [Presentation] 金属製細胞培養器開発に資する多結晶ダイヤモンド工具によるCo-Cr 合金の微細溝加工2024

    • Author(s)
      今川翔太,森田晋也,片平和俊,吉川直希,今城哉裕,小茂鳥潤
    • Organizer
      精密工学会2024年度春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] PCDマイクロエンドミルによる窒化珪素のクリープフィード加工特性2024

    • Author(s)
      高橋太一,片平和俊,亀山雄高
    • Organizer
      精密工学会2024年度春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] LIPSS formation and silver particle impregnation on titanium alloy surface by ultrashort pulse laser induced wet modification treatment2024

    • Author(s)
      A. Ezura, K. Katahira, J. Komotori
    • Organizer
      The CHINA-JAPAN International Conference on Ultra-Precision Machining Process (CJUMP)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 極小径PCDボールエンドミルによる金属系生体材料の微細連続溝加工特性2023

    • Author(s)
      今川翔太,森田晋也,片平和俊,吉川直希,今城哉裕,小茂鳥潤
    • Organizer
      砥粒加工学会2023年度学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] PCDマイクロエンドミルによる窒化珪素の微細溝加工特性2023

    • Author(s)
      高橋太一,片平和俊,亀山雄高
    • Organizer
      砥粒加工学会2023年度学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Experimental investigation on micro-grooving characteristics of sapphire using polycrystalline diamond radial end mill2022

    • Author(s)
      Kumi TAKISHIMA, Kazutoshi KATAHIRA, Shinya MORITA
    • Organizer
      International Conference of Precision Engineering 2022 (ICPE2022)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Surface modification of titanium alloy via atmospheric pressure nitrogen plasma assisted femtosecond laser irradiation2022

    • Author(s)
      Kazutoshi Katahira, Atsushi Ezura, Shogo Takesue, Jun Komotori
    • Organizer
      CIRP General Assembly
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] PCDラジアスエンドミルによる単結晶サファイアの微細溝加工特性に関する研究2022

    • Author(s)
      瀧島玖実,片平和俊,森田晋也
    • Organizer
      精密工学会学術講演会春季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Diamond tool micro-milling of hard and brittle materials2021

    • Author(s)
      Kazutoshi Katahira
    • Organizer
      The 23rd International Symposium on Advances in Abrasive Technology (ISAAT2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Experimental Investigation for Optimizing the Fabrication of a Sapphire Capillary Using Femtosecond Laser Machining and Diamond Tool Micromilling2021

    • Author(s)
      Kazutoshi Katahira
    • Organizer
      The 2nd Advanced Optical Fabrication for Analyzer Technologies (ADOPTECH2021)
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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