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2010 Fiscal Year Final Research Report

Near-Net Shape Manufacturing of Hull Structures in Ship-Building by Using Control of Temperature Distribution and Material Properties

Research Project

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Project/Area Number 20360393
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Naval and maritime engineering
Research InstitutionOsaka University

Principal Investigator

MOCHIZUKI Masahito  Osaka University, 工学研究科, 教授 (10304015)

Co-Investigator(Kenkyū-buntansha) MIKAMI Yoshiki  大阪大学, 工学研究科, 助教 (40397758)
Project Period (FY) 2008 – 2010
Keywords溶接変形 / ニアネット / プロセス中制御
Research Abstract

It is important for the quality of hull structures in ship-building to increase precision of manufacturing process such as cutting, welding and assembling. Weld distortion is one of the most important factors for precise manufacturing, but it was difficult to intentionally control weld distortion. A new methodology of controlling weld distortion for near-net shape manufacturing is studied by using control of temperature distributions during weld process and material properties in hull plate and weld metal.

  • Research Products

    (24 results)

All 2011 2010 2009 2008 Other

All Journal Article (15 results) (of which Peer Reviewed: 15 results) Presentation (8 results) Remarks (1 results)

  • [Journal Article] An Attempt to EnhanceNumerical Models of Angular Distortion byConsidering the Physics of the WeldingArc2011

    • Author(s)
      S.Okano, M.Mochizuki, K.Yamamoto, M.Tanaka
    • Journal Title

      Welding in the World Vol.55, No.5/6

      Pages: 93-100

    • Peer Reviewed
  • [Journal Article] 溶接アークの熱源特性を考慮した溶接変形の数値解析-入熱パラメータと溶接角変形の関係に関する一考察2011

    • Author(s)
      岡野成威, 田中学, 望月正人
    • Journal Title

      溶接学会論文集 Vol.29, No.2

      Pages: 77-85

    • Peer Reviewed
  • [Journal Article] 熱源後方に冷却を伴う突合せ溶接中に生じる面内回転変形に及ぼす収縮変形の影響2011

    • Author(s)
      岡野成威, 望月正人, 豊田政男, 上山智之
    • Journal Title

      溶接学会論文集 Vol.29, No.2

      Pages: 70-76

    • Peer Reviewed
  • [Journal Article] Prediction of Ductile-to-BrittleTransition Under Different Strain Rates inUndermatched Welded Joints2011

    • Author(s)
      望月正人, 豊田政男
    • Journal Title

      Transactions of the ASME, Journal ofPressure Vessel Technology, AmericanSociety of Mechanical Engineers Vol.133, No.3

      Pages: 031401-1-031401-8

    • Peer Reviewed
  • [Journal Article] Arc Physics Based Heat Source Modelingfor Numerical Simulation of Weld ResidualStress and Distortion2011

    • Author(s)
      岡野成威, 田中学, 望月正人
    • Journal Title

      Science andTechnology of Welding and Joining Vol.16, No.3

      Pages: 209-214

    • Peer Reviewed
  • [Journal Article] 水冷法による角変形低減効果に及ぼす溶接入熱条件の影響2011

    • Author(s)
      岡野成威, 望月正人, 豊田政男, 上山智之
    • Journal Title

      溶接学会論文集 Vol.29, No.1

      Pages: 55-60

    • Peer Reviewed
  • [Journal Article] 高強度鋼の適用拡大に向けた溶接部軟化許容設計の基礎的検討2010

    • Author(s)
      北野萌一, 岡野成威, 望月正人
    • Journal Title

      鋼構造年次論文報告集 第18巻

      Pages: 165-172

    • Peer Reviewed
  • [Journal Article] 移動熱源の影響に注目した入熱パラメータと角変形の関係に関する一考察2010

    • Author(s)
      岡野成威, 松下和憲, 望月正人, 豊田政男
    • Journal Title

      溶接学会論文集 第28巻, 第3号

      Pages: 272-280

    • Peer Reviewed
  • [Journal Article] 多電極サブマージアーク溶接における温度場特性に関する理論解析2010

    • Author(s)
      越智申久, 岡野成威, 望月正人, 嶋村純二, 石川信行
    • Journal Title

      溶接学会論文集 第28巻, 第1号

      Pages: 158-166

    • Peer Reviewed
  • [Journal Article] 入熱パラメータと溶接角変形の関係に関する実験的考察2010

    • Author(s)
      岡野成威, 松下和憲, 望月正人, 豊田政男, 上山智之
    • Journal Title

      溶接学会論文集 第28巻, 第1号

      Pages: 97-107

    • Peer Reviewed
  • [Journal Article] 局所冷却を伴う温度場で生じる溶接残留変形とその低減効果2010

    • Author(s)
      岡野成威, 望月正人, 豊田政男
    • Journal Title

      溶接学会論文集 第28巻, 第1号

      Pages: 72-79

    • Peer Reviewed
  • [Journal Article] Computational Simulation ofWeld Microstructure and Distortion byConsidering Process Mechanics2009

    • Author(s)
      M.Mochizuki, Y. Mikami, S.Okano, S. Itoh
    • Journal Title

      Journalof Physics, Conference Series(IOP PublishingLimited) Vol.165, No.012014

      Pages: 1-6

    • Peer Reviewed
  • [Journal Article] Effect of Transformation Temperatureand Restraint Intensity on the Reductionof Restraint Stress by TransformationExpansion2009

    • Author(s)
      Y. Mikami, M.Mochizuki, M.Toyoda
    • Journal Title

      Quarterly Journal of JapanWelding Society Vol.27, No.2

      Pages: 235s-239s

    • Peer Reviewed
  • [Journal Article] Angular Distortion ofFillet Welded T Joint Using LowTransformation Temperature WeldingWire2009

    • Author(s)
      Y. Mikami, Y. Morikage, M. Mochizukiand, M.Toyoda
    • Journal Title

      Science and Technology of Weldingand Joining Vol.14, Vol.2

      Pages: 97-105

    • Peer Reviewed
  • [Journal Article] Angular Distortion Reduction byIn-Process Control Welding Using BackHeating Sources2008

    • Author(s)
      岡野成威, 望月正人, 豊田政男
    • Journal Title

      Materials ScienceForum Vols.580-582

      Pages: 585-588

    • Peer Reviewed
  • [Presentation] Million-Finite-Element-OrderLarge-Scale Computation of ResidualStress in Complicated Weld Structures2010

    • Author(s)
      M., Mochizuki, S., Itoh
    • Organizer
      Proceedings of the 2010 ASME PressureVessels and Piping Conference PVP2010-25902
    • Place of Presentation
      Seattle, USA(有)
    • Year and Date
      2010-07-22
  • [Presentation] CouplingComputation between Weld Mechanics and ArcPlasma Processes2010

    • Author(s)
      M., Mochizuki, S., Okano
    • Organizer
      Proceedings of the2010 ASME Pressure Vessels and PipingConference PVP2010-25901
    • Place of Presentation
      Seattle, USA(有)
    • Year and Date
      2010-07-20
  • [Presentation] Prediction of WeldingDeformation of Shell and Multiple-PipeComponents2009

    • Author(s)
      S., Itoh, M., Shibahara, M., Mochizuki, H., Murakawa
    • Organizer
      Proceedings of the 12thInternational Conference on PressureVessel Technology, pp.72-79 No. WRS1-5
    • Place of Presentation
      Jeju, Korea(有)
    • Year and Date
      2009-09-21
  • [Presentation] Weld Residual Stress and Distortion byConsidering Process Mechanics2009

    • Author(s)
      M., Mochizuki, S., Okano, H., Shirai
    • Organizer
      Proceedings of the 2009 ASME PressureVessels and Piping Conference, PVP2009-77617
    • Place of Presentation
      Prague, Czech(有)
    • Year and Date
      2009-07-28
  • [Presentation] Experimental Study on ThermalDistortion Behavior during In-ProcessControl Welding by Additional Cooling2009

    • Author(s)
      S., Okano, M., Mochizuki, M., Toyoda, T., Ueyama
    • Organizer
      Proceedings of the 19th InternationalOffshore and Polar Engineering Conference, ISOPE-2009-TPC-711
    • Place of Presentation
      Osaka, Japan(有)
    • Year and Date
      2009-06-25
  • [Presentation] Influence of Initial ResidualStress by Rolling Process on WeldingDistortion of Stiffened Plate2009

    • Author(s)
      S., Itoh, S., Okano, M., Mochizuki, H., Murakawa
    • Organizer
      Proceedings of the 19th InternationalOffshore and Polar Engineering Conference, ISOPE-2009-TPC-650Osaka
    • Place of Presentation
      Japan(有)
    • Year and Date
      2009-06-24
  • [Presentation] Effect of Low TemperatureTransformation Expansion on RestraintStress of High Strength Steel Welds2009

    • Author(s)
      M., Mochizuki, Y., Mikami, M., Iyota
    • Organizer
      Proceedings of the 19th InternationalOffshore and Polar Engineering Conference, ISOPE-2009-TPC-549
    • Place of Presentation
      Osaka, Japan(有)
    • Year and Date
      2009-06-23
  • [Presentation] Effect ofTransformation Temperature of Weld Metalon Welding Distortion2008

    • Author(s)
      Y., Morikage, T., Kubo, K., Yasuda, Y., Mikami, M., Mochizuki
    • Organizer
      Proceedings ofthe 27th International Conference onOffshore Mechanics and Arctic Engineering, OMAE2008-57709
    • Place of Presentation
      Estoril, Portugal(有)
    • Year and Date
      2008-06-17
  • [Remarks] ホームページ等

    • URL

      http://www7.mapse.eng.osaka-u.ac.jp/Pro-M_Lab_Home.html

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Published: 2012-01-26   Modified: 2016-04-21  

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