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HIGH PRECISION MACHINING OF MICRO-CUTTING EDGE USING ON-MACHINE LASER HARDENING SYSTEM

Research Project

Project/Area Number 24560141
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Production engineering/Processing studies
Research InstitutionRyukoku University (2014)
The University of Shiga Prefecture (2012-2013)

Principal Investigator

OGAWA Keiji  龍谷大学, 理工学部, 講師 (80405232)

Co-Investigator(Kenkyū-buntansha) NAKAGAWA Heisaburo  滋賀県立大学, 工学部, 教授 (50033345)
TANABE Hirotaka  滋賀県立大学, 工学部, 准教授 (00275174)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords生産工学・加工学 / 特殊加工 / レーザ加工 / 表面改質 / 焼入れ / 高精度 / レーザ
Outline of Final Research Achievements

Micro-cutting edges are often used for die cutting of such as functional films. A hardening process is needed because the ridgelines of micro-cutting edges require not only wear resistance, but also sharpness and shape accuracy. A method of laser hardening after machining for the micro-cutting edge fabrication was developed. This process uses laser hardening after shape fabrication of the micro-cutting edge in a pre-hardened steel workpiece. However, edge melting due to overheating during laser irradiation is likely to occur because the heat capacity is very small. Hence, a novel method to overcome these issues is needed. Therefore, a novel method such as micro-cutting edge shape formation after laser hardening was proposed and demonstrated its effects for micro-cutting edges. Effects of this method was investigated comparing with the method of laser hardening after machining. Some experiments results revealed applicability of the method to curve-shaped micro-cutting edges.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (9 results)

All 2015 2014 2013 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (8 results)

  • [Journal Article] A Proposal of Process Strategy for Micro-cutting Edge Fabrication: Effects of Shape Formation after Laser Hardening2015

    • Author(s)
      Keiji Ogawa, Hirotaka Tanabe and Heisaburo Nakagawa
    • Journal Title

      Key Engineering Materials

      Volume: 625 Pages: 545-549

    • DOI

      10.4028/www.scientific.net/kem.625.545

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] レーザ焼入れ後刃形創製法の曲線形状極小刃物への適応性2015

    • Author(s)
      山本修平,小川圭二,田邉裕貴,高松徹,中川平三郎
    • Organizer
      精密工学会春季大会学術講演会
    • Place of Presentation
      東洋大学白山キャンパス(東京都文京区)
    • Year and Date
      2015-03-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] 機上レーザ焼入れシステムを用いた複雑形状極小刃物の高精度化2014

    • Author(s)
      小川圭二,田邉裕貴,高松徹,山本修平,中川平三郎
    • Organizer
      第16回国際工作機械技術者会議(ポスターセッション)
    • Place of Presentation
      東京ビッグサイト(東京都江東区)
    • Year and Date
      2014-11-01 – 2014-11-02
    • Related Report
      2014 Annual Research Report
  • [Presentation] Effects of Shape Formation after Laser Hardening in Fabrication of Micro-cutting Edge2014

    • Author(s)
      Keiji OGAWA, Hirotaka TANABE and Heisaburo NAKAGAWA
    • Organizer
      The 15th International Conference on Precision Engineering
    • Place of Presentation
      ホテル日航金沢(石川県金沢市)
    • Year and Date
      2014-07-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 機上レーザ焼入れシステムを用いた複雑形状極小刃物の高精度化―レーザ焼入れ後刃形創製法の曲線刃物への適応について―2014

    • Author(s)
      山本修平,小川圭二,田邉裕貴,高松徹,中川平三郎
    • Organizer
      精密工学会関西地方定期学術講演会
    • Place of Presentation
      近畿大学東大阪キャンパス(大阪府東大阪市)
    • Year and Date
      2014-07-04
    • Related Report
      2014 Annual Research Report
  • [Presentation] 機上レーザ焼入れシステムを用いた複雑形状極小刃物の高精度化―レーザ焼入れ後刃形創製法の提案―2013

    • Author(s)
      小川圭二,田邉裕貴,中川平三郎
    • Organizer
      精密工学会関西地方定期学術講演会
    • Place of Presentation
      大阪市
    • Related Report
      2013 Research-status Report
  • [Presentation] A Proposal of Process Strategy for Micro-cutting Edge Fabrication: Effects of Shape Formation after Laser Hardening2013

    • Author(s)
      Keiji Ogawa, Hirotaka Tanabe and Heisaburo Nakagawa
    • Organizer
      5th International Conference of Asian Society for Precision Engineering and Nanotechnology
    • Place of Presentation
      Taipei,Taiwan
    • Related Report
      2013 Research-status Report
  • [Presentation] A Proposal of Process Strategy for Micro-cutting Edge Fabrication: Effects of Shape Formation after Laser Hardening2013

    • Author(s)
      Keiji Ogawa, Hirotaka Tanabe and Heisaburo Nakagawa
    • Organizer
      The 5th International Conference of Asian Society for Precision Engineering and Nanotechnology (ASPEN2013)
    • Place of Presentation
      Taipei, Taiwan
    • Related Report
      2012 Research-status Report
  • [Presentation] 機上レーザ焼入れシステムを用いた複雑形状極小刃物の高精度化―レーザ焼入れ後刃形創製法の提案―

    • Author(s)
      小川圭二,田邉裕貴,中川平三郎
    • Organizer
      精密工学会2013年度関西地方学術講演会
    • Place of Presentation
      大阪市
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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