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不同层间停留时间下电弧增材制造2Cr13薄壁件热力学行为

韩文涛, 林健, 雷永平, 葛进国

韩文涛, 林健, 雷永平, 葛进国. 不同层间停留时间下电弧增材制造2Cr13薄壁件热力学行为[J]. 焊接学报, 2019, 40(12): 47-52. DOI: 10.12073/j.hjxb.2019400311
引用本文: 韩文涛, 林健, 雷永平, 葛进国. 不同层间停留时间下电弧增材制造2Cr13薄壁件热力学行为[J]. 焊接学报, 2019, 40(12): 47-52. DOI: 10.12073/j.hjxb.2019400311
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HAN Wentao, LIN Jian, LEI Yongping, GE Jinguo. Thermal-stress analysis of wire-arc additive manufacturing 2Cr13 parts with different interlayer idle time[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(12): 47-52. DOI: 10.12073/j.hjxb.2019400311
Citation: HAN Wentao, LIN Jian, LEI Yongping, GE Jinguo. Thermal-stress analysis of wire-arc additive manufacturing 2Cr13 parts with different interlayer idle time[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2019, 40(12): 47-52. DOI: 10.12073/j.hjxb.2019400311
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不同层间停留时间下电弧增材制造2Cr13薄壁件热力学行为

  • 北京工业大学, 北京 100124

基金项目: 国家重点研发计划（2017YFB1104803）；国家自然科学基金（51275006）

Thermal-stress analysis of wire-arc additive manufacturing 2Cr13 parts with different interlayer idle time

  • Beijing University of Technology, Beijing 100124, China

摘要

    摘要
  • 摘要: 在电弧增材制造过程中，沉积件内部的热-力演变对成形件质量具有重要影响. 文中通过电弧增材制造三维有限元模型的建立，对层间停留时间分别为30，120，210，300 s的2Cr13沉积件温度场和应力场进行了模拟，模拟结果与测量结果基本一致. 结果表明，层间停留时间为30 s时构件的纵向残余应力分布显著差异于其它构件. 层间停留时间大于210 s时，再延长层间停留时间起不到明显降低应力的效果.电弧增材制造单道25层2Cr13薄壁件的层间停留时间在120~210 s之间较为合适.
    Abstract: During the wire-arc additive manufacturing, the thermal and stress evolution inside the as-deposited parts has an important influence on the quality of the parts. Temperature and stress characteristics of 2Cr13 thin-wall parts, with interlayer idle time of 30, 120, 210 and 300 s was simulated using the three-dimensional finite element model. The simulation results have a good agreement with the corresponding experimental results. The results indicated that longitudinal residual stress distribution of the buildup with 30 s interlayer idle time are significantly different from those of deposits with other interlayer idle time. When the interlayer idle time is longer than 210 s, the further increase of the interlayer idle time can hardly reduce the stress. Consequently the interlayer idle time of the wire-arc additive manufacture 25-layer thin-walled 2Cr13 parts is suitable between 120~210 s.
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    • 参考文献(16)
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  • 收稿日期:  2019-04-16

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