閻 紀旺 (ヤン ジワン)

Yan, Jiwang

写真a

所属(所属キャンパス)

理工学部 機械工学科 (矢上)

職名

教授

HP

外部リンク

総合紹介 【 表示 / 非表示

  • 高付加価値型ものづくりを実現するための、マイクロ・ナノ領域での材料除去・変形および物性制御に基づく高精度・高効率・省エネ・省資源の加工技術の研究開発に取り組んでいる。特に超精密機械加工、マイクロ・ナノ構造形成、レーザ加工・欠陥修復などを中心に新技術の提案ならびにその原理の解明を進めている。

経歴 【 表示 / 非表示

  • 2000年04月
    -
    2001年09月

    東北大学工学研究科助手

  • 2001年10月
    -
    2005年03月

    北見工業大学助教授

  • 2005年04月
    -
    2007年03月

    東北大学工学研究科助教授

  • 2007年04月
    -
    2012年03月

    東北大学工学研究科准教授

  • 2008年02月
    -
    2008年04月

    シドニー大学日本学術振興会特定国派遣研究者

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学歴 【 表示 / 非表示

  • 1991年07月

    吉林大学, 工学部, 機械工学科

    大学, 卒業

  • 1994年03月

    吉林大学, 工学研究科, 機械工学専攻

    大学院, 修了, 修士

  • 1996年01月

    清華大学, 工学研究科, 精密機械学専攻

    大学院, 退学, 博士

  • 2000年03月

    東北大学, 工学研究科, 機械電子工学専攻

    大学院, 修了, 博士

学位 【 表示 / 非表示

  • 博士(工学), 東北大学, 課程, 2000年03月

 

研究分野 【 表示 / 非表示

  • ものづくり技術(機械・電気電子・化学工学) / 加工学、生産工学 (精密工学・機械加工学)

  • ナノテク・材料 / 材料加工、組織制御 (材料加工・処理)

  • ナノテク・材料 / ナノマイクロシステム (マイクロ・ナノデバイス)

  • ナノテク・材料 / 複合材料、界面 (応用物性・結晶工学)

研究キーワード 【 表示 / 非表示

  • 超精密加工

  • マイクロ・ナノ加工

  • レーザプロセッシング

  • 電気加工

  • ナノメカニクス

 

著書 【 表示 / 非表示

  • Ultra-precision grooving technologies

    Huang W., Yan J., Comprehensive Materials Processing: Volume 1-13, Second edition, 2024年01月

     概要を見る

    Fabricating microgrooves on part surfaces is a way to provide advanced functionality of the parts, which has recently increased in several fields, such as biotechnology, optics, and aerospace. Considerable progress has been achieved in groove-cutting technology with the equipment development, process optimization and mechanisms understanding. This chapter reviews the ultraprecision cutting technologies for manufacturing of microgrooves and microgroove-based microstructures on various materials. Major cutting methods and their principles/mechanisms for microgrooving have been introduced. The main challenges in the cutting of microgrooves on ductile materials and brittle materials, respectively, are pointed out. Some innovations in groove-cutting technology are also highlighted. Several aspects in demand for further research and development are provided.

  • Advanced Ceramic Coatings: Fundamentals, Manufacturing, and Classification, R. K. Gupta, A. Motallebzadeh, S. Kakooei, T. A. Nguyen, A. Behera (eds.)

    P. J. Liew, J. Yan, C. Y. Yap, Elsevier B. V., 2023年06月

    担当範囲: Chapter 19: Electrical discharge coating with quarry dust powder suspension,  担当ページ: 433-460

  • Multidisciplinary Science in Micro/Nanoscale Manufacturing

    J. Yan (Guest editor), Elsevier B.V., 2020年12月

    担当範囲: International Journal of Machine Tools and Manufacture, Volume 159 (Special Issue)

  • Micro and nanoscale laser processing of hard brittle materials

    J. Yan and N. Takayama, Elsevier B.V., 2019年11月,  ページ数: 242

    担当範囲: 1-242

  • リチウムイオン二次電池用シリコン系負極材の開発動向

    閻 紀旺, シーエムシー出版, 2019年11月,  ページ数: 251

    担当範囲: 第3章 レーザ照射による廃シリコン粉末からのマイクロピラー形成とその負極特性, 20-33

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論文 【 表示 / 非表示

  • Micromachining of Carbon Fiber Reinforced Plastics Using Femtosecond Pulsed Laser

    Konishi, Y; Yan, JW

    NANOMANUFACTURING AND METROLOGY 8 ( 1 )  2025年12月

    ISSN  2520-811X

  • Micro-amplitude vibration-assisted scratching: a new method for one step and controllable fabrication of the microscale V-groove and nanoscale ripples

    Wu H., Huang H., Zhang Z., Yan J.

    International Journal of Extreme Manufacturing 7 ( 3 )  2025年06月

    ISSN  26318644

     概要を見る

    Highlights A micro-amplitude vibration-assisted scratching method was proposed. One step and controllable fabrication of microscale V-groove and nanoscale ripples was achieved. The effects of processing parameters on the resultant structures were explored. Relationships between processing parameters and dimensions of the resultant structures were established. Complex patterns were fabricated on flat and curved surfaces, achieving various structural colors.

  • Unveiling the effects of laser scanning direction and processing parameters on heat transfer and ablation behavior of CFRP

    An H., Qian Y., Jiang M., Huang H., Yan J.

    Composites Part B: Engineering 298 2025年06月

    ISSN  13598368

     概要を見る

    Carbon fiber reinforced plastic (CFRP) has found extensive applications in aerospace, automotive, and biomedical fields owing to its exceptional mechanical properties. Nanosecond pulsed laser processing offers a promising avenue for treating CFRP laminates; however, the inevitable thermal damage during processing may significantly degrade the surface integrity. An in-depth analysis of the correlation between ablation characteristics of CFRP and laser processing conditions is essential for understanding the complex heat transfer and ablation mechanisms during laser processing of CFRP and is a prerequisite for improved control of thermal damage. This study examines the thermal transfer and ablation behavior of CFRP subjected to nanosecond laser ablation, focusing on how laser scanning direction and processing parameters influence the surface characteristics of the laser-ablated regions. The results indicate that the width of the heat-affected zone (HAZ) increases with increasing laser power, decreasing scanning speed, and decreasing scanning pitch. Moreover, the scanning direction plays a crucial role in determining the HAZ characteristics and material removal rate. Processing CFRP along the 0° direction relative to the carbon fiber orientation yields higher efficiency and less thermal damage compared to the 90° direction. Chemical composition analysis reveals that laser ablation induces a structural transformation in carbon fibers, shifting from sp2 graphite-like lattice orbitals to sp3 hybird orbitals. Numerical simulations further elucidate the heat transfer and ablation mechanisms under various experimental conditions. This study contributes to a deeper understanding of the laser-CFRP interaction, facilitating the development of high-integrity CFRP surfaces and broadening their practical applications across multiple industries.

  • Time delay compensation in high-speed diamond turning of freeform surface using independent fast tool servo with a long stroke

    Hashimoto T., Yan J.

    Precision Engineering 93   515 - 527 2025年05月

    ISSN  01416359

     概要を見る

    The demand for wearable device applications has continuously grown in recent years, especially with the significant rise of augmented and virtual reality technologies. Freeform optics plays a crucial role in these devices by enhancing optical performance, shortening the light path, and reducing the weight, all while allowing for smaller, lighter systems with higher efficiency. The independent fast tool servo (FTS)-based diamond-turning method stands out as a highly effective technique for fabricating freeform shapes with high accuracy and productivity. However, microsecond-order time delays occur within the system, significantly impacting form accuracy as machining speeds increase. This study explores the sources of form errors in freeform surface fabrication associated with the FTS diamond-turning process, with particular attention to the effects of clocking angle errors caused by the time delay. These errors were found to greatly affect form accuracy, especially at higher machining speeds. The FTS position data were analyzed, and time delays under various operational conditions due to servo control were confirmed. To precisely identify the extent of the time delay, a cylindrical surface was machined under high-speed conditions, and the clocking angle error was measured using a non-contact chromatic probe. Results showed that time delays originating from the machine platform had a significant effect on form accuracy. By accurately identifying and compensating for these time delays, the clocking angle error was eliminated. To validate the effectiveness of the time-delay compensation strategy, a cylindrical freeform surface was machined after the compensation, and the clocking angle error was minimized down to 0.00014° evaluated by on-machine measurement. The form accuracy of the freeform machining result after compensation was achieved at 0.85 μm PV. This study establishes a methodology for identifying and compensating for time delays in an independent FTS system, contributing to improved form accuracy in freeform optics fabrication.

  • Evolution of surface and subsurface properties of Zr-4 alloy under the combined effects of laser heat treatment and laser gas nitriding: Microscopic morphology, chemical composition, and mechanical behavior

    Xu P., Qian Y., An H., Guo H., Zhang Z., Jiang M., Huang H., Yan J.

    Journal of Materials Processing Technology 339 2025年03月

    ISSN  09240136

     概要を見る

    Zr-4 alloy, extensively employed as cladding in nuclear reactor fuel rods, stands as the foremost line of defense for reactor safety. Given its susceptibility to defects such as micro-pores during casting and its long-term exposure to extreme conditions during practical service processes, enhancing the surface and subsurface properties of Zr-4 alloy is essential. Herein, a nanosecond pulsed laser is used to irradiate the Zr-4 alloy in a nitrogen environment to investigate the evolution of its surface and subsurface properties under the combined effects of laser heat treatment and laser gas nitriding. The experimental results reveal a remarkable augmentation in surface hardness and scratch resistance of the Zr-4 alloy after laser irradiation. Notably, the hardness of the laser-irradiated surface obtained with a laser power of 23.0 W and a scanning speed of 150 mm/s reaches 19.10 GPa, which is more than 7 times higher than that of the untreated surface (2.37 GPa). These improvements are attributed to the synergistic effects of the introduction of hard ZrN phase, the reduction of subsurface porosity, and grain refinement. This study demonstrates a promising approach for significantly improving the mechanical properties of Zr-4 alloy, holding considerable practical significance for its applications in the nuclear energy industry and other relevant fields.

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KOARA(リポジトリ)収録論文等 【 表示 / 非表示

総説・解説等 【 表示 / 非表示

  • レーザ活用による高付加価値創造マイクロ・ナノ加工

    閻 紀旺

    機械と工具 14 ( 11 ) 8 - 15 2024年11月

    記事・総説・解説・論説等(学術雑誌), 単著, 筆頭著者

  • レーザ微細加工による機能表面の製作

    閻 紀旺

    レーザ協会誌 49 ( 1 ) 20 - 25 2024年11月

    記事・総説・解説・論説等(商業誌、新聞、ウェブメディア), 単著

  • 金属付加製造品のレーザ研磨技術

    閻 紀旺

    砥粒加工学会誌 67 ( 8 ) 440 - 443 2023年08月

    記事・総説・解説・論説等(学術雑誌), 単著, 筆頭著者

  • 硬脆材料の超精密延性モード加工

    閻 紀旺

    日本機械学会誌 125 ( 1247 ) 11 - 14 2022年10月

    記事・総説・解説・論説等(学術雑誌), 単著, 筆頭著者, 責任著者

  • 超音波振動援用研削による炭素系難削材の加工

    閻 紀旺

    精密工学会誌 88 ( 7 ) 541 - 545 2022年07月

    記事・総説・解説・論説等(学術雑誌), 単著, 筆頭著者, 責任著者

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研究発表 【 表示 / 非表示

  • Scale-bridging surface structuring for functional performance improvement of components

    J. Yan

    7th CIRP CSI Conference on Surface Integrity 2024 (ブレーメン) , 

    2024年05月

    口頭発表(基調)

  • Tool Dynamics-induced Surface Topography Error in Fast Tool Servo-Based Diamond Turning of Micro Dome Arrays

    T. Hashimoto, J. Yan

    7th CIRP CSI Conference on Surface Integrity 2024 (ブレーメン) , 

    2024年05月

    口頭発表(一般)

  • Influences of tool tip geometry on surface/subsurface damage formation in nanoscratching of single-crystal 4H-SiC

    W. Huang, J. Yan

    7th CIRP CSI Conference on Surface Integrity 2024 (ブレーメン) , 

    2024年05月

    口頭発表(一般)

  • Ultraprecision manufacturing for small optics

    J. Yan

    Nanotechnology and Precision Engineering (NPE) International Series Forum (Online) , 

    2024年04月

    口頭発表(招待・特別)

  • 自由曲面加工における工具姿勢に起因する切削メカニズム変化

    川上凜太朗,閻 紀旺

    精密工学会第31回学生会員卒業研究発表講演会 (東京) , 

    2024年03月

    口頭発表(一般)

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受賞 【 表示 / 非表示

  • 日本機械学会賞(論文)

    L. Zhang, 佐藤裕亮, 閻 紀旺, 2024年04月, 日本機械学会, Optimization of fast tool servo diamond turning for enhancing geometrical accuracy and surface quality of freeform optics

    受賞区分: 国内学会・会議・シンポジウム等の賞

  • IJEM Best Editor Award

    J. Yan, 2024年01月, International Journal of Extreme Manufacturing (IJEM), IoP publishing

    受賞区分: 学会誌・学術雑誌による顕彰

  • 精密工学会論文賞

    Lin Zhang, Allen Yi, 閻 紀旺, 2023年03月, 精密工学会, Flexible fabrication of Fresnel micro-lens array by off-spindle-axis diamond turning and precision glass molding

    受賞区分: 国内学会・会議・シンポジウム等の賞

  • 2022 IJEM Best Paper Award

    Y. Sato, J. Yan, 2023年03月, International Journal of Extreme Manufacturing (IJEM), IoP publishing, Tool path generation and optimization for freeform surface diamond turning based on an independently controlled fast tool servo

    受賞区分: 学会誌・学術雑誌による顕彰

  • 工作機械技術振興賞(論文賞)

    笠井慎平, 袖平智樹, 閻 紀旺, 2021年06月, 工作機械技術振興財団, 炭素拡散反応を用いた形彫り放電加工による多結晶ダイヤモンドの3次元形状創製

    受賞区分: 出版社・新聞社・財団等の賞

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担当授業科目 【 表示 / 非表示

  • 超精密加工計測

    2025年度

  • マルチディシプリナリ・デザイン科学特別講義

    2025年度

  • 理工学基礎実験

    2025年度

  • 総合デザイン工学課題研究

    2025年度

  • 機械工学創造演習

    2025年度

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所属学協会 【 表示 / 非表示

  • 日本機械学会, 

    1997年04月
    -
    継続中
  • 精密工学会, 

    1997年04月
    -
    継続中
  • 砥粒加工学会, 

    2000年04月
    -
    継続中
  • 応用物理学会, 

    2004年04月
    -
    継続中
  • レーザ加工学会, 

    2009年01月
    -
    継続中

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委員歴 【 表示 / 非表示

  • 2024年01月
    -
    継続中

    Associate Editor, Journal of Materials Processing Technology

  • 2022年05月
    -
    継続中

    理事, レーザ協会

  • 2022年03月
    -
    継続中

    理事・執行理事・出版部会長・校閲委員長, 精密工学会

  • 2019年04月
    -
    2022年03月

    学術誌編修部会委員, 日本機械学会

  • 2019年01月
    -
    継続中

    Editorial Board Member, International Journal of Extreme Manufacturing

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