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厚板Invar合金多层多道焊反变形数值模拟

陈洁, 王玉华, 朱振新, 肖军, 占小红

陈洁, 王玉华, 朱振新, 肖军, 占小红. 厚板Invar合金多层多道焊反变形数值模拟[J]. 焊接学报, 2019, 40(4): 84-89. DOI: 10.12073/j.hjxb.2019400105
引用本文: 陈洁, 王玉华, 朱振新, 肖军, 占小红. 厚板Invar合金多层多道焊反变形数值模拟[J]. 焊接学报, 2019, 40(4): 84-89. DOI: 10.12073/j.hjxb.2019400105
CHEN Jie, WANG Yuhua, ZHU Zhenxin, XIAO Jun, ZHAN Xiaohong. Numerical simulation of multi-layer and multi-passes welding anti-deformation for thick plate Invar alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(4): 84-89. DOI: 10.12073/j.hjxb.2019400105
Citation: CHEN Jie, WANG Yuhua, ZHU Zhenxin, XIAO Jun, ZHAN Xiaohong. Numerical simulation of multi-layer and multi-passes welding anti-deformation for thick plate Invar alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(4): 84-89. DOI: 10.12073/j.hjxb.2019400105

厚板Invar合金多层多道焊反变形数值模拟

基金项目: 

上海市经委课题(15XI-1-15);江苏高校优势学科建设工程项目(PAPD)

详细信息
    作者简介:

    陈 洁,女,1970年出生,硕士. 主要研究方向为飞机制造特种工艺,表面工程、连接技术等. 发表论文10余篇. Email: chenjie@comac.cc

    通讯作者:

    占小红,男,博士,教授,Email: zhanxiaohong@126.com

  • 中图分类号: TG 444+.72

Numerical simulation of multi-layer and multi-passes welding anti-deformation for thick plate Invar alloy

  • 摘要: 文中针对19.05 mm厚Invar合金模具材料多层多道MIG焊接,采用有限元仿真分析和试验验证相结合的方法,分别对无反变形角的模型和施加不同反变形角的模型进行数值模拟,用模拟时所设计的反变形角进行Invar合金多层多道MIG焊试验,分析焊后试样的变形情况,与模拟结果对比分析.结果表明,当施加的反变形角为2°时可以有效控制100 mm × 100 mm × 19.05 mm的Invar合金四层十道MIG焊的焊后角变形,焊后残余翘曲高度为−0.11 mm,焊后残余角变形为−0.12°,与模拟结果的误差在8%之内. 结果表明,有限元模拟技术对于试验探究具有预测和引导作用.
    Abstract: Finite element simulation was applied in multi-layer and multi-passes MIG welding of 19.05 mm thick Invar alloy to simulate the non-deformable models and the models with different anti-deformation angles. Then the Invar alloy multi-layer and multi-passes MIG welding experiments were carried out with the anti-deformation angle, which was designed according to the simulation results, besides, the deformation of the post welding specimen was analyzed. The result showed that the 2 degree anti-deformation angle could effectively control the post welding angular deformation of the four-layer and ten-passes MIG welding for 100 mm × 100 mm × 19.05 mm Invar alloy. The post-weld residual warpage height is −0.11 mm and the post-weld residual angular deformation is −0.12 degree. The error between the results and the simulation results was less than 8%. This conclusion proved that the finite element simulation technology had prediction and guidance for experiments.
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出版历程
  • 收稿日期:  2017-12-18

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