Development of thermo conductive analysis simulation in order to aid laser welding of dissimilar metals

开发热传导分析模拟以辅助异种金属的激光焊接

基本信息

  • 批准号:
    13650774
  • 负责人:
  • 金额:
    $ 1.86万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
  • 财政年份:
    2001
  • 资助国家:
    日本
  • 起止时间:
    2001 至 2002
  • 项目状态:
    已结题

项目摘要

Steel and aluminum alloy were chosen as a combination of dissimilar metals in this study. Boundary element analysis program was developed. Laser welding condition was obtained by the analysis, assuming of solid state / liquid state reaction at the interface. A joint between steel and aluminum alloy was welded under the condition predicted by BEM analysis. Intermetallic phase between Fe and Al was formed at the interface of the joint. Strength of the joint was controlled by this intermetallic phase, because this phase has poor mechanical properties. Even if brittle reaction layer exists at the interface, increase of bonded area could be a way to improve failure load of the joint. According to BEM analysis, change of shape of joint part and/or applying contact pad at welding zone can control temperature distribution at the interface and increase bonded area. In this case also, the welding condition was predicted by BEM analysis. Increase of failure load of joint and bonded area was recognized by tensile test and cross-sectional observation at the interface. The BEM simulation with assumption of interface state as mentioned above also predicted the size of bonded area. In conclusion, the computer aiding method for dissimilar metals laser welding was developed and its availability was shown in this study.
在这项研究中,钢和铝合金被选为异种金属的组合。编制了边界元分析程序。通过分析,假设界面处发生固/液反应,得到了激光焊接条件。在边界元分析预测的条件下,对钢与铝合金的焊接接头进行了试验研究。接头界面处形成了Fe和Al之间的金属间化合物相。接头的强度由该金属间相控制,因为该相具有差的机械性能。即使在界面处存在脆性反应层的情况下,增加结合面积也可以提高接头的破坏载荷。根据边界元分析,改变接头形状和/或在焊接区设置接触垫可以控制界面温度分布,增加结合面积。在这种情况下,也通过边界元分析预测焊接条件。通过拉伸试验和界面处的横截面观察,确认了接头和粘结区的破坏载荷的增加。边界元模拟与界面状态的假设如上所述,也预测了结合区的大小。总之,本研究建立了异种金属激光焊接的计算机辅助方法,并证明了其有效性。

项目成果

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MUTOH Yoshiharu其他文献

Effects of Adhesives on Evaluation Method of Interfacial Strength of Plasma‐Sprayed HAp Coating
粘合剂对等离子喷涂HAp涂层界面强度评价方法的影响
  • DOI:
  • 发表时间:
    2017
  • 期刊:
  • 影响因子:
    0
  • 作者:
    OTSUKA Yuichi,HIRAKU Yoshihisa;HAKOZAKI Yuki, MIYASHITA Yukio;MUTOH Yoshiharu
  • 通讯作者:
    MUTOH Yoshiharu

MUTOH Yoshiharu的其他文献

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{{ truncateString('MUTOH Yoshiharu', 18)}}的其他基金

Development of a Method for Fretting Fatigue Life Prediction with Taking Account of Wear based on in-situ Observation of Fretting Wear and Fatigue Processes
基于微动磨损和疲劳过程的现场观察,开发考虑磨损的微动疲劳寿命预测方法
  • 批准号:
    21360052
  • 财政年份:
    2009
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Laser Cutting of Functional Materials by Twin Laser Beam and Thermal Stress Analysis
双激光束激光切割功能材料和热应力分析
  • 批准号:
    16360050
  • 财政年份:
    2004
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Fatigue crack growth behavior of interface crack in thermal barrier coating
热障涂层界面裂纹的疲劳裂纹扩展行为
  • 批准号:
    10650077
  • 财政年份:
    1998
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of a System for Analysing Damage Mechanism of Coatings in Scratch Test
涂层划痕试验损伤机理分析系统的开发
  • 批准号:
    07555619
  • 财政年份:
    1995
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Fatigue Strength of Functionally Graded Thermal Barrier Ceramic Coatings Subjected to Thermal Cycling under Gradient Temperature
梯度温度下热循环功能梯度热障陶瓷涂层的疲劳强度
  • 批准号:
    06452147
  • 财政年份:
    1994
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
High Temperature Fretting Fatigue Properties of Silicon Nitride
氮化硅的高温微动疲劳性能
  • 批准号:
    04650062
  • 财政年份:
    1992
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
High Temperature Fatigue Crack Growth in Silicon Nitride and Role of SCC.
氮化硅中的高温疲劳裂纹扩展和 SCC 的作用。
  • 批准号:
    02650054
  • 财政年份:
    1990
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
High Temperature Fretting Fatigue of Turbine Steels Under Variable Loading Simulating Practical Operation
模拟实际运行变载荷下汽轮机钢的高温微动疲劳
  • 批准号:
    62550053
  • 财政年份:
    1987
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
Fracture toughness of ceramics at elevated temperature and metallurgical factors for controlling the toughness
陶瓷高温断裂韧性及控制韧性的冶金因素
  • 批准号:
    60550048
  • 财政年份:
    1985
  • 资助金额:
    $ 1.86万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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