MAENO Tomoyoshi

Affiliation

Faculty of Engineering, Division of Systems Research

Job Title

Associate Professor

Research Fields, Keywords

Metal forming, Production engineering, 塑性加工

Mail Address

E-mail address

Related SDGs




写真a

The Best Research Achievement in Research Career 【 display / non-display

The Best Research Achievement in the last 5 years 【 display / non-display

  • 【Published Thesis】 Integration of Hot Tube Gas Forming and Die Quenching of Ultra-High Strength Steel Hollow Parts Using Low Pressure Sealed-Air  2022.02

    【Published Thesis】 Corner Strengthening by Local Thickening and Ausforming Using Planar Compression in Hot Stamping of Ultra-High Strength Steel Parts  2021.12

    【Published Thesis】 Quenchability improvement and control simplification by ice mandrel in hot stamping of ultra-high strength steel hollow parts  2021.04

    【Published Thesis】 Improvement of burnished area in punching of stainless steel thick plate by means of pulsating motion  2020.09

Profile 【 display / non-display

  • Reserch work:
    Development of forming processes of lightweight metals
    *1 shot hot stamping of ultra-high strength steel parts
    *Improvement of formability in hot stamping
    *Hot stamping of titanium alloy sheets

    Development of forming processes of lightweight parts
    *Gas forming of aluminium alloy and quenchable steel tubes using resistance heating

    Development of new forming processes
    *Automatic re-lubrication in forging of plates by load pulsation
    *Prevention of seizure in forging of spline parts by load pulsation

Education 【 display / non-display

  • 2003.4
    -
    2005.3

    Toyohashi University of Technology   Master Course   Completed

  • 2001.4
    -
    2003.3

    Toyohashi University of Technology   Graduated

Degree 【 display / non-display

  • Doctor of Engineering

Campus Career 【 display / non-display

  • 2017.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Systems Research   Associate Professor  

  • 2015.9
    -
    2017.3

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Materials Science and Chemical Engineering   Associate Professor  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Mechanical Engineering, Materials Science and Ocean Engineering   Associate Professor  

  • 2017.4
     
     

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Mechanical Engineering, Materials Science and Ocean Engineering   Associate Professor  

  • 2015.9
     
     

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Mechanical Engineering and Materials Science   Associate Professor  

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External Career 【 display / non-display

  • 2015.9
    -
    2017.3

     

  • 2012.4
    -
    2015.8

    Toyohashi University of Technology   Depertment of Mechanical Engineering   Assistant Professor  

  • 2010.4
    -
    2012.2

    Toyohashi University of Technology   Depertment of Mechanical Engineering   Research Assistant  

  • 2008.3
    -
    2010.3

    Toyohashi University of Technology   Depertment of Production System Engineering   Research Assistant  

  • 2005.4
    -
    2008.2

    NISSAN MOTOR CO.,LTD.  

Academic Society Affiliations 【 display / non-display

  • 2015.6
    -
    2018.12
     

    Association for Iron & Steel Technology (AIST)

  • 2011.1
     
     
     

    The Japan Society of Mechanical Engineers

  • 2005.4
     
     
     

    The Japan Society for Technology of Plasticity

Research Areas 【 display / non-display

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Manufacturing and production engineering

 

Research Career 【 display / non-display

  • 自動再潤滑を利用した摩擦低減,焼付き防止をする振動鍛造の開発

    Project Year:

  • Hot satamping of quenchable steel sheet and heat treatable aluminium alloy sheet

    Project Year:

Thesis for a degree 【 display / non-display

  • Study of Metal Forming Processes Having Control of Pressure and Heating Histories

    Tomoyoshi Maeno

    2011.12

    Doctoral Thesis   Single Work  

  • 管材のハンマリングハイドロフォーミングにおける成形性向上のメカニズムの研究

    前野 智美

    2005.3

    Master Thesis   Single Work  

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    豊橋技術科学大学大学院工学研究科修士課程生産システム工学専攻
    金型に挿入した管材の内部に水圧を加えながら管材を軸方向に圧縮して成形するチューブハイドロフォーミングにおいて,成形性向上が報告されている内圧振動のメカニズムをフリーバルジ成形において検討した.内圧振動ありとなしで異なる張出し形状が得られ内圧振動ありでは局部的な変形を抑制できることが分かった.また,変形挙動をビデオで観察することによって,しわの発生と消去を繰り返すことが局部的な張出しを抑制することが明らかになった.

Papers 【 display / non-display

  • Blanking immediately after heating and ultrasonic cleaning for compact hot-stamping systems using rapid resistance heating

    Tomoyoshi Maeno, Ken-ichiro Mori, Tomoki Ogihara, Tomohiro Fujita

    International Journal of Advanced Manufacturing Technology   97 ( 9-12 )   3827–3837   2018.6  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Springer   Joint Work  

    To produce ultra-high-strength steel parts for improving fuel consumption and collision safety of automobiles, a compact hot-stamping process having resistance heating was developed. In this process, a blanking operation was introduced immediately after heating to deal with non-rectangular blanks in resistance heating. By blanking, not only were the blank shapes optimised for stamping but the formability was also improved by removing both non-heating edges in contact with the electrode. A rectangular quenchable steel sheet was resistance-heated; the sheet was immediately blanked into the desired shape, and the blank was hot-stamped. In addition, reinforcements used for a body-in-white were hot-stamped using the proposed process to examine the applicability. The reduction in thickness of the hot-stamped reinforcement using a hot-blanked sheet was reduced compared with that using a rectangular blank. The formability was improved by blanking immediately after heating. Moreover, ultrasonic cleaning with diluted hydrochloric acid removed the thin oxide scale caused by resistance heating, and the spot-resistance weldability and electrodeposition paintability were improved. Blanking immediately after heating and ultrasonic cleaning are useful for practical hot-stamping processes using resistance heating.

    Other Link: https://link.springer.com/article/10.1007/s00170-018-2232-2

  • Use of liquid lubricant for backward extrusion of cup with internal splines using pulsating motion

    T. Maeno, K. Mori, Y. Ichikawa, M. Sugawara

    Journal of Materials Processing Technology   244   273 - 281   2017.6  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Joint Work  

    Other Link: http://www.sciencedirect.com/science/article/pii/S0924013617300456

  • Hot stamping of high-strength aluminium alloy aircraft parts using quick heating

    Tomoyoshi Maeno, Ken-ichiroMori, Ryosuke Yachi

    CIRP Annals   66 ( 1 )   269 - 272   2017.4  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Elsevier   Joint Work  

    To improve the formability and productivity in conventional cold stamping of high-strength aluminium aircraft parts, a hot stamping process of heat-treatable aluminium alloy sheets using quick heating below the solution treatment temperature was developed. Quick heating just before forming has the function of producing sufficient strength increase in subsequent artificial ageing. This leads to the elimination of solution treatment and sizing processes for cold stamping. The effect of heating conditions was evaluated in hot hat-bending of A2024-T4 aluminium alloy sheets. In addition, an aluminium alloy aircraft part having high strength and dimensional accuracy was successfully produced by the present process.

    Other Link: https://www.sciencedirect.com/science/article/pii/S0007850617301178

  • Integration of Hot Tube Gas Forming and Die Quenching of Ultra-High Strength Steel Hollow Parts Using Low Pressure Sealed-Air

    Ali Talebi-Anaraki, Tomoyoshi Maeno, Yuta Matsubara, Ryohei Ikeda, Ken-ichiro Mori

    Materials   15 ( 4 )   1322   2022.2  [Reviewed]

    DOI

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:mdpi   Joint Work  

  • Corner Strengthening by Local Thickening and Ausforming Using Planar Compression in Hot Stamping of Ultra-High Strength Steel Parts

    Maeno Tomoyoshi, Mori Ken-ichiro, Homma Hiroki, Talebi-Anaraki Ali, Ikeda Ryohei

    METALS   11 ( 12 )   1977   2021.12  [Reviewed]

    DOI Web of Science

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:mdpi   Joint Work  

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Review Papers 【 display / non-display

  • Novel Approaches for Hot Stamping of Quenchable Steel Tube and Heat Treatable Aluminum Alloy Sheet

    Tomoyoshi Maeno

    Bulletin of the Japan Society for Technology of Plasticity   5 ( 051 )   131 - 136   2022.3  [Reviewed]  [Invited]

    DOI

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • アルミ合金の熱間鍛造におけるプレスモーション応用による型充満向上とダイクエンチ鍛造

    前野 智美

    型技術   36 ( 4 )   30 - 33   2021.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (trade magazine, newspaper, online media)   Publisher:日本工業新聞社   Single Work  

    サーボプレスを用いた応用技術としてアルミニウムの熱間鍛造への応用例を示した.サーボプレスのプレスモーションの速度が金型充満に及ぼす影響を紹介した.加えて,熱間鍛造と溶体化処理を同時に実施するダイクエンチ鍛造を紹介した.

  • Development and Study on Warm and Hot forming of tube and sheets

    Tomoyoshi Maeno

    3 ( 36 )   730 - 734   2020.12

    DOI

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • Implemention report on student research meeting of JSTP young research members at three kanto branches

    Bulletin of the japan society for technology of plasticity   1 ( 4 )   285   2018.4

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    Language:Japanese   Publishing type:Meeting report   Publisher:japan society for technology of plasticity   Single Work  

  • サーボプレスを用いた荷重低減をする低サイクル振動圧縮加工法の開発とメカニズムの解明

    前野 智美

    天田財団 フォームテックレビュー   27   22 - 28   2018.3

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    Language:Japanese   Publishing type:Internal/External technical report, pre-print, etc.   Publisher:公益財団法人 天田財団   Single Work  

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Industrial Property Rights 【 display / non-display

  • アルミニウム合金板の成形方法

    廣澤 渉一,前野 智美,金 准模,鈴木 欣,成谷 光二

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    Applicant:国立大学法人横浜国立大学,株式会社ジーテクト

    Application no:特願2021-161291  Date applied:2021.9.30

  • アルミニウム合金の成形方法

    前野 智美,谷口 俊哉,山田 壮一

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    Applicant:株式会社ジーテクト

    Application no:特願2020-216773  Date applied:2020.12.25

    Announcement no:特開2021-62407  Date announced:2021.4.22

  • アルミニウム合金の成形方法

    前野智美,谷口俊哉,齋藤拓己,飛田夏葵

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    Applicant:株式会社ジーテクト

    Application no:特願2018-188033  Date applied:2018.10.3

    Announcement no:特開2020-056082   Date announced:2020.4.9

    Patent/Registration no:特許6817266   Date issued:2020.12.28

    Country of applicant:Domestic  

    【請求項1】
    アルミニウム合金からなる溶体化処理の後、人工時効処理をすることなく析出硬化している板材を、溶体化処理がなされた状態が維持された状態で加熱する第1工程と、溶体化処理がなされた状態を維持して前記板材をプレス加工して成形体とする第2工程と、プレス加工した成形体を人工時効処理する第3工程とを備え、第1工程では、前記板材をプレス加工可能な温度に加熱することを特徴とするアルミニウム合金の成形方法。
    【請求項2】
    請求項1記載のアルミニウム合金の成形方法において、前記第1工程では、前記板材を150℃~250℃の範囲のいずれかの温度に加熱することを特徴とするアルミニウム合金の成形方法。
    【請求項3】
    請求項1または2記載のアルミニウム合金の成形方法において、前記第1工程では、前記板材を接触加熱により加熱することを特徴とするアルミニウム合金の成形方法。
    【請求項4】
    請求項1~3のいずれか1項に記載のアルミニウム合金の成形方法において、前記アルミニウム合金は、Al-Zn-Mg系合金またはAl-Zn-Mg-Cu系合金であることを特徴とするアルミニウム合金の成形方法。

  • アルミニウム合金の成形方法

    前野智美、谷口俊哉、山田壮一

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    Application no:特願2018-86393  Date applied:2018.4.27

    Country of applicant:Domestic  

  • 合金材の成形方法及びプレス成形機

    藤井和慶, 糠谷 猛, 蔵重 勇, 森 謙一郎, 前野 智美

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    Applicant:三菱重工業株式会社, 国立大学法人豊橋技術科学大学

    Application no:特願2013-105071  Date applied:2013.5.17

    Announcement no:特開2014-223667  Date announced:2014.12.4

    Country of applicant:Domestic  

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Awards 【 display / non-display

  • 日本塑性加工学会 学術賞

    2020.6   一般社団法人 日本塑性加工学会   管材および板材の温・熱間成形法の研究開発

    Individual or group name of awards:前野智美

  • 日本塑性加工学会東京・南関東支部賞 奨励賞

    2019.4   日本塑性加工学会   サーボプレスによる振動モーションを用いた塑性加工法の開発

    Individual or group name of awards:前野 智美

  • 第16回助成研究成果発表会 優秀賞

    2018.5   公益財団法人 天田財団   サーボプレスを用いた荷重低減をする低サイクル振動圧縮加工法の開発とメカニズムの解明

    Individual or group name of awards:前野 智美

  • ICTP2014 Best Paper Award

    2014.10   ICTP Standing advisory board   Gas forming of aluminium alloy tube using air filled into sealed tube and resistance heating

  • 日本塑性加工学会賞 技術開発賞

    2014.6   社団法人 日本塑性加工学会   チタン合金航空機部品の通電加熱ホットスタンピング法の開発

    Individual or group name of awards:山崎潔, 山口祥登, 村山洋平, 森謙一郎, 前野智美

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Grant-in-Aid for Scientific Research 【 display / non-display

  • 冷却履歴を部分制御する高生産性テーラードホットスタンピング法の開発

    2018.4 - 2021.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(B)

    Investigator(s):森 謙一郎

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    Grant type:Competitive

  • 接触加熱を用いた時効硬化アルミニウム合金板の溶体化レスホットスタンピングの開発

    2018.4 - 2021.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(C)

    Investigator(s):前野 智美

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    Grant type:Competitive

  • 低環境負荷のボンデフリー低サイクル振動鍛造の開発と自動再潤滑システムの確立

    2015.4 - 2018.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(C)

    Investigator(s):前野智美

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    Grant type:Competitive

  • 巨大変形による圧粉体のポアフリーメカニズム解明と高磁気特性圧粉磁心の成形への応用

    2013.4 - 2015.3

    科学研究費補助金  Grant-in-Aid for Young Scientists(B)

    Investigator(s):前野智美

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    Grant type:Competitive

  • Investigation of mechanism of load pulsation, and applying for forming of parts having small thickness

    2010.4 - 2012.3

    Grant-in-Aid for Scientific Research  Grant-in-Aid for Young Scientists(B)

    Investigator(s):Tomoyoshi Maeno

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    Grant type:Competitive

    To prevent a sharp rise in load in compression of plates, a compression process using load pulsation was developed. The mechanism of the load pulsation was investigated. The load pulsation was applied for backward extrusion, flange forming and bulk forming of stainless steel sheet. The forming load was decreased and accuracy of the formed shape was increased by the load pulsation.

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Other external funds procured 【 display / non-display

  • 増肉およびオースフォームによる組織強化を用いたテーラードホットスタンピング法の開発

    2019.7 - 2021.6

    課題提案型研究助成金

    Investigator(s):前野 智美

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    自動車用高強度部材の成形を目的に,増肉およびオースフォームによる組織強化を用いたテーラードホットスタンピング法の開発を実施する.

  • アルミニウム合金の成形後人工時効レスホットスタンピング

    2018.2 - 2021.3

    Investigator(s):前野 智美

  • 超高強度鋼部材の次世代スマートホットスタンピングの開発

    2016.4 - 2018.3

    Local Government  重点研究開発助成Aフリーテーマ

    Investigator(s):森謙一郎

  • せん断,成形,ダイクエンチ工程を含む通電加熱順送ホットスタンピング法の開発

    2016.4 - 2017.3

    Local Government  平成27年度金型等に関する研究開発助成

    Investigator(s):前野 智美

  • ボンデフリー低サイクル振動鍛造に適した潤滑剤特性の調査および潤滑剤開発

    2016.4 - 2017.3

    Local Government  平成27年度科学技術研究助成

    Investigator(s):前野 智美

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Presentations 【 display / non-display

  • Strengthening of Ultra-high Strength Steel Parts in Hot Stamping Using Planer Compression

    Tomoyoshi Maeno, Ken-ichiro Mori, Hiroki Homma, Ryohei Ikeda, Riku Watanabe

    Material Research Meeting 2021  2021.12  The Materials Research Society of Japan

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    Event date: 2021.12

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Yokohama   Country:Japan  

  • Concurrent improvement of strength, formability and SCC resistance of Al-Zn-Mg-Cu alloy by hot stamping after rapid heating and re-aging

    Junmo KIM, Shoichi HIROSAWA, Tomoyoshi MAENO, Yasushi SUZUKI, Yuuji YABUKI

    The 141nd Conference of Japan Institute of Light Metals  2021.11  Japan Institute of Light Metals

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    Event date: 2021.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:online   Country:Japan  

  • Compression of ice-filled quenchable steel tube at elevated temperature

    Tomoyoshi Maeno, Ali Talebi-Anaraki, Ryohei Ikeda, Kazui Morishita, Ken-ichiro Mori

    THE PROCEEDINGS OF THE 2021 JAPANESE SPRING CONFERENCE FOR THE TECHNOLOGY OF PLASTICITY  2021.6  The Japan Society for Technology of Plasticity

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    Event date: 2021.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:online   Country:Japan  

  • パルスモーションによる自動再潤滑に及ぼす潤滑剤特性のリング圧縮試験による評価

    秋山 武大, 前野 智美, 前川 陽太, 伊藤 彰悟

    第71回塑性加工連合講演会  2020.11  日本塑性加工学会

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:WEBにてオンライン   Country:Japan  

  • パルスモーションを用いた液封鍛造における荷重低減メカニズムの検討-パルス液封鍛造法の開発 第3報―

    前野 智美, 寺田 彩人, 志賀 良, 古川 康之, 山本 一, 中島 一輝, 吉田 武志

    第71回塑性加工連合講演会  2020.11  日本塑性加工学会

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    Event date: 2020.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:WEBにてオンライン   Country:Japan  

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Preferred joint research theme 【 display / non-display

  • 新塑性加工法の開発および新塑性加工法のメカニズム解明に関する研究

  • サーボプレスによるフリーモーションを用いた塑性加工

  • 鋼板および非鉄合金板のホットスタンピングに関する研究

Past of Collaboration and Commissioned Research 【 display / non-display

  • アルミニウム合金の成形後人工時効レスホットスタンピング

    Offer organization: 株式会社ジーテクト   Cooperative Research within Japan  

    Project Year: 2017.2  -   

  • パルスモーションを用いた自動再潤滑に及ぼす潤滑剤特性の影響

    Offer organization: 出光興産株式会社   Cooperative Research within Japan  

    Project Year: 2019.4  -   

  • Development of forging of hollow products using fluid mandrel and pulsating motion 1st report

    Cooperative Research within Japan  

    Project Year: 2018.5  -   

 

Charge of on-campus class subject 【 display / non-display

  • 2022   Mathematical Theory of Plasticity

    College of Engineering Science

  • 2022   Metal Forming

    College of Engineering Science

  • 2022   Material Forming Process

    Graduate school of Engineering Science

  • 2022   Material Characteristics Studio

    Graduate school of Engineering Science

  • 2022   Materials Fabrication Studio

    Graduate school of Engineering Science

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Committee Memberships 【 display / non-display

  • 日本塑性加工学会 会報誌 編集委員

    2021.4 

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    Committee type:Academic society 

  • 日本塑性加工学会 東京・南関東支部

    2021.4  商議員

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    Committee type:Academic society 

  • 日本塑性加工学会 講演会運営委員会

    2019.4 - 2020.3  幹事

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    Committee type:Academic society 

  • 日本機械学会

    2018.4  第6技術委員会幹事

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    Committee type:Academic society 

  • 日本塑性加工学会 東京・南関東支部

    2018.4 - 2019.3  技術支援担当幹事・副

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    Committee type:Academic society 

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Social Contribution(Extension lecture) 【 display / non-display

  • 研究室訪問「横浜国立大学 大学院工学研究院 システムの創生部門 前野 智美 准教授」

    Role(s): Filming support, Official expert

    スズキ株式会社  やらまいか(vol.11、2021 July)  2021.7

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    Audience: University students, Graduate students, Teachers, Researchers, Scientific organization, Company, Media

    Type:Newspaper, magazine

    ▪「やらまいか」は技術コミュニケーションマガジン
    ▪研究室訪問で「軽量化、高強度に対応した、新しい塑性加工プロセスの開発を目指して(P.14-15)」について掲載された。
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