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THE ESTABLISHMENT OF LASER WELDING TECHNIQUE OF THE DISSIMILAR METAL CASTING

Research Project

Project/Area Number 16390567
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionNihon University

Principal Investigator

KIKUCHI Hisaji  Nihon University, SCHOOL OF DENTISTRY, ASSISTANT PROFESSOR (40120422)

Co-Investigator(Kenkyū-buntansha) 西山 實  日本大学, 歯学部, 教授 (40059704)
Project Period (FY) 2004 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥10,540,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2006: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2005: ¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2004: ¥5,800,000 (Direct Cost: ¥5,800,000)
KeywordsLASER WELDING / DENTAL METAL / DISSIMILAR METAL / WELD STRENGTH / TECHNIQUE / 歯科用合金 / アルゴンガス / 変形 / レーザー照射条件 / 石膏模型 / 溶融形状
Research Abstract

In this study, to establish a laser welding method for castings of different types of metal, laser irradiation of dental alloys was performed under various conditions to measure the penetration depth, tensile strength, and deformation, and the tensile break surface was observed for evaluation. Dental alloys used were titanium, gold alloy, high-gold ceramic bonding alloy, silver-palladium-gold alloy, and cobalt-chromium alloy. As a result, the penetration depth markedly differed among alloy types and under laser irradiation conditions. When laser irradiation energy was too strong, alloys scattered and hole within them, causing welding defects. Therefore, to perform laser welding, it was considered necessary to produce data bases regarding the relationships between laser irradiation conditions and the penetration depth and melting diameter of welding alloys. Furthermore, to obtain a stable laser beam, the irradiation energy of laser welding machines should be regularly measured and adjusted. On the other hand, alloy surface characteristics and defocusing influence the penetration depth and melting diameter. Furthermore, during laser welding, it is important to exclude oxygen using an argon gas shield. When the flow rate of argon gas is low, influences such as the oxidation of alloy occur. When strong laser irradiation penetrates alloys in dental plaster models, plaster components are evaporated and scattered, and alloys become brittle. The level of deformation of alloys differed under laser irradiation conditions. Deformation can be decreased by establishing appropriate levels for these conditions. From these study results, laser welding of castings of different types of metal was possible by closely adhering the junction areas at the welding site, and performing laser irradiation at the lowest energy level required to weld, creating conditions causing no welding defects.

Report

(5 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • 2004 Annual Research Report
  • Research Products

    (41 results)

All 2008 2007 2006 2005 2004

All Journal Article (15 results) (of which Peer Reviewed: 3 results) Presentation (26 results)

  • [Journal Article] チタンのレーザー溶接におけるアルゴンガス流量およびノズル位置が酸素濃度分布ならびに硬さに及ぼす影響2008

    • Author(s)
      菊地 久二
    • Journal Title

      日大歯学 82

      Pages: 65-69

    • NAID

      10027313403

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] ARGON GAS FLOW RATE OF THE TITANIUM ON THE LASSER WELDING AND OXYGEN CONCENTRATION DISTRIBUTION OF THE NOZZLE POSITION AND EFFECT ON THE HARDNESS2008

    • Author(s)
      KIKUCHI, HISAJI
    • Journal Title

      NIHON UNIVERSITY DENTAL JOURNAL 82

      Pages: 65-69

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] チタンのレーザー溶接におけるアルゴンガス流量およびノズル位置が酸素濃度分布ならびに硬さに及ぼす影響2008

    • Author(s)
      菊地久二
    • Journal Title

      日大歯学 82

      Pages: 65-69

    • NAID

      10027313403

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ピント位置の個人差がレーザー溶接に及ぼす影響2006

    • Author(s)
      菊地 久二
    • Journal Title

      日本歯科技工士学会誌 27

      Pages: 90-95

    • NAID

      10018491406

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] EFFECT OF INDIVIDUAL DIFFERENCES IN FOCUS POSITION ON WELDING2006

    • Author(s)
      KIKUCHI, HISAJI
    • Journal Title

      JOURNAL OF NIPPON ACADEMY OF DENTAL TECHNOLOGY 27

      Pages: 90-95

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] レーザー溶接時のアルゴンガスシールド効果について2006

    • Author(s)
      菊地久二, 他6名
    • Journal Title

      歯科材料・器械 25・5

      Pages: 406-406

    • NAID

      130006963804

    • Related Report
      2006 Annual Research Report
  • [Journal Article] ピント位置の個人差がレーザー溶接に及ぼす影響2006

    • Author(s)
      菊地久二, 他8名
    • Journal Title

      日本歯科技工学会雑誌 27・2

      Pages: 90-95

    • NAID

      10018491406

    • Related Report
      2006 Annual Research Report
  • [Journal Article] レーザー溶接に関する研究-石膏模型上でのレーザー照射が熔融部に与える影響-2006

    • Author(s)
      菊地久二, 他2名
    • Journal Title

      チタンと歯科臨床 4・1

      Pages: 59-59

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 歯科用合金のレーザー溶接に関する研究-ディフォーカスが溶融形状に及ぼす影響-2005

    • Author(s)
      菊地久二, 他5名
    • Journal Title

      歯科材料・器械 24・2

      Pages: 157-157

    • NAID

      130006963821

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 歯科用合金のレーザー溶接に関する研究-異種金属溶接部のEMPA観察-2005

    • Author(s)
      菊地久二, 他7名
    • Journal Title

      歯科材料・器械 24・5

      Pages: 409-409

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 歯科用合金のレーザー溶接に関する研究-術者による焦点距離の相違と溶け込み深さ-2005

    • Author(s)
      菊地久二, 他9名
    • Journal Title

      日本歯科技工学会雑誌 26・2

      Pages: 239-239

    • NAID

      10016905709

    • Related Report
      2005 Annual Research Report
  • [Journal Article] 歯科用金属のレーザー溶接に関する研究-表面形状と溶融状態-2005

    • Author(s)
      菊地久二, 西山 實 他
    • Journal Title

      チタンと歯科臨床 3・1

      Pages: 73-73

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 歯科用金属のレーザー溶接に関する研究-被レーザー照射金属の引張強さについて-2004

    • Author(s)
      菊地久二, 西山 實 他
    • Journal Title

      チタンと歯科臨床 2・1

      Pages: 66-66

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 歯科用合金のレーザー溶接に関する研究-引張試験後の破断面の観察-2004

    • Author(s)
      椎名芳江, 菊地久二, 西山 實 他
    • Journal Title

      日本歯科技工学会雑誌 25・2

      Pages: 285-285

    • NAID

      10014246206

    • Related Report
      2004 Annual Research Report
  • [Journal Article] コバルトクロム合金のレーザー溶接に関する研究-照射による影響-2004

    • Author(s)
      菊地久二, 西山 實 他
    • Journal Title

      歯科材料・器械 23・5

      Pages: 395-395

    • NAID

      130006963997

    • Related Report
      2004 Annual Research Report
  • [Presentation] コバルトクロム合金と金合金のレーザー溶接による引張強さについて2008

    • Author(s)
      菊地 久二
    • Organizer
      第51回日本歯科理工学会学術講演会
    • Place of Presentation
      鶴見大学
    • Year and Date
      2008-04-26
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] TENSILE STRENGTH OF LASER WELDING BETWEEN COBALT CHROMIUM ALLOY AND GOLD ALLOY2008

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 51ST GENERAL SESSION OF THE JAPANESE SOCIETY FOR DENTAL MATERIALS AND DEVICES
    • Place of Presentation
      TSURUMI
    • Year and Date
      2008-04-26
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] チタンと白金加金合金のレーザー溶接強度について2008

    • Author(s)
      菊地 久二
    • Organizer
      第21歯科チタン学会学術講演会
    • Place of Presentation
      ルネッサンスリゾートナルト
    • Year and Date
      2008-02-16
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASER WELDING STRENGTH OF TITANIUM AND PLATINUM-ADDED GOLD ALLOY2008

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 21ST GENERAL SESSION OF THE NIPPON ACADEMY OF DENTAL TECHNOLOGY
    • Place of Presentation
      TOKUSHIMA
    • Year and Date
      2008-02-16
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] チタンと白金加金合金のレーザー溶接強度について2008

    • Author(s)
      菊地久二
    • Organizer
      第21回歯科チタン学会
    • Place of Presentation
      ルネッサンスリゾートナルト
    • Year and Date
      2008-02-16
    • Related Report
      2007 Annual Research Report
  • [Presentation] チタンと金合金のレーザー溶接2007

    • Author(s)
      菊地 久二
    • Organizer
      第29回日本歯科技工学会学術大会
    • Place of Presentation
      仙台市民会館
    • Year and Date
      2007-09-22
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] LASER WELDING OF TITANIUM AND GILD ALLOY2007

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 29TH I GENERAL SESSION OF THE NIPPON ACADEMY OF DENTAL TECHNOLOGY
    • Place of Presentation
      SENDAI
    • Year and Date
      2007-09-22
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] レーザー溶接機のパルス波形が変形量に及ぼす影響2007

    • Author(s)
      菊地 久二
    • Organizer
      第49回日本歯科理工学会学術講演会
    • Place of Presentation
      札幌コンペンションセンター
    • Year and Date
      2007-05-12
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] EFFECT OF PULSE SHAPES OF LASER WELDER ON DISTORTION2007

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 49TH GENERAL SESSION OF THE JAPANESE SOCIETY FOR DENTAL MATERIALS AND DEVICES
    • Place of Presentation
      SAPPORO
    • Year and Date
      2007-05-12
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] レーザー溶接機のパルス波形が変形量に及ぼす影響2007

    • Author(s)
      菊地久二
    • Organizer
      第49回日本歯科理工学会学術講演会
    • Place of Presentation
      札幌コンベンションセンター
    • Year and Date
      2007-05-12
    • Related Report
      2007 Annual Research Report
  • [Presentation] レーザー溶接時のアルガンガスシールド効果について2006

    • Author(s)
      菊地 久二
    • Organizer
      第48回日本歯科理工学会学術講演会
    • Place of Presentation
      愛知学院大学
    • Year and Date
      2006-10-29
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] EFFECT OF ARGON GAS SHIELD ON LASER WELDING2006

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 48TH GENERAL SESSION OF THE JAPANESE SOCIETY FOR DENTAL MATERIALS AND DEVICES
    • Place of Presentation
      NAGOYA
    • Year and Date
      2006-10-29
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 歯科用合金のレーザー溶接に関する研究-異種金属溶接部のEPMA観察-2005

    • Author(s)
      菊地 久二
    • Organizer
      第46回日本歯科理工学会学術講演会
    • Place of Presentation
      長崎ブリックホール
    • Year and Date
      2005-09-15
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASSER WELDING OF DENTAL ALLOY -EPMA OBSERVATION ON THE WELD ZONE OF DIFFERENT METAL2005

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 46TH GENERAL SESSION OF THE JAPANESS SOCIETY FOR DENTAL MATERIALS AND DEVICES
    • Place of Presentation
      NAGASAKI
    • Year and Date
      2005-09-15
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 歯科用合金のレーザー溶接に関する研究-ディフォーカスが溶融形状に及ぼす影響-2005

    • Author(s)
      菊地 久二
    • Organizer
      第45回日本歯科理工学会学術講演会
    • Place of Presentation
      タワーホール船堀
    • Year and Date
      2005-04-17
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASER WELDING OF DENTAL ALLOY -EFFECT OF DEFOCUS ON WELD POOL SHAPE2005

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 4TH GENERAL SESSION OF THE JAPANESSE SOCIETY FOR DENTAL MATERIALS AND DEVICES
    • Place of Presentation
      TOKYO
    • Year and Date
      2005-04-17
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Laser welding:Metas and surface condition on weld pool shape2005

    • Author(s)
      Kikuchi Hisaji
    • Organizer
      The 83rd General Session and Exhibition of the International Association for Dental Research
    • Place of Presentation
      Boltimore Convention Center U.S.A.
    • Year and Date
      2005-03-10
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASER WELDING : METALS AND SURFACE CONDITIONS ON WELD POOL SHAPE2005

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 83RD GENERAL SESSION AND EXHIBITION OF INTERNATIONAL ASSOCIATION FOR DENTAL RESERCH
    • Place of Presentation
      BALTIMORE U.S.A
    • Year and Date
      2005-03-10
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 歯科用金属のレーザー溶接に関する研究-表面形状と溶融状態-2005

    • Author(s)
      菊地 久二
    • Organizer
      第18回歯科チタン学会学術講演会
    • Place of Presentation
      松本歯科大学
    • Year and Date
      2005-02-20
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASER WELDING OF DENTAL ALLOY -SURFACE SHAPE AND PENETELATION DEPE2005

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 18TH GENERAL SESSION OF THE SOCIETY FOR TITANIUM ALLOY IN DENTISTRY
    • Place of Presentation
      MATUMOTO
    • Year and Date
      2005-02-20
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 歯科用合金のレーザー溶接2004

    • Author(s)
      菊地 久二
    • Organizer
      第20回日本歯科医学会総会
    • Place of Presentation
      パシフィコ横浜
    • Year and Date
      2004-10-31
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASER WELDING OF DENTAL ALLOY2004

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 20TH GENERAL MEETING OF THE JAPANESE ASSOCIATION FOR DENTAL SCIENCE
    • Place of Presentation
      YOKOHAMA
    • Year and Date
      2004-10-31
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] コバルトクロム合金のレーザー溶接に関する研究-照射による影響-2004

    • Author(s)
      菊地 久二
    • Organizer
      第44回日本歯科理工学会学術講演会
    • Place of Presentation
      京都テルサ
    • Year and Date
      2004-09-24
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASER WELDING OF COBALT-CHROMIUM ALLOY -EFFECT OF IRRADIATION2004

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 44TH GENERAL SESSION OF THE JAPANESE SOCIETY FOR DENTAL MATERIALS AND DEVICES
    • Place of Presentation
      KYOTO
    • Year and Date
      2004-09-24
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 歯科用合金のレーザー溶接に関する研究-引張試験後の破断面の観察-2004

    • Author(s)
      菊地 久二
    • Organizer
      第26回日本歯科技工学会学術講演会
    • Place of Presentation
      新潟コンベンションセンター
    • Year and Date
      2004-07-31
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] LASER WELDING OF DENTAL ALLOY -OBSERVATION OF THE FRACTURE SURFACE BY TENSIL TEST2004

    • Author(s)
      KIKUCHI, HISAJI
    • Organizer
      THE 26TH GENERAL SESION OF THE NIPPON ACADEMY OF DENTAL TECHNOLOGY
    • Place of Presentation
      NIIGATA
    • Year and Date
      2004-07-03
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary

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Published: 2004-04-01   Modified: 2016-04-21  

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