| 基于温度函数法的铝合金电弧增材制造残余应力与变形数值模拟 |
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| 引用本文： | 赵鹏康, 唐成, 蒲尊严, 李言, 李淑娟. TIG电弧增材制造5356铝合金微观组织与拉伸性能[J]. 焊接学报, 2020, 41(5): 65-70, 77. DOI: 10.12073/j.hjxb.20190925002 |
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| 作者姓名： | 赵鹏康 唐成 蒲尊严 李言 李淑娟 |
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| 作者单位： | 1.西安理工大学，陕西省机械制造装备重点实验室，西安，710048;2.西安理工大学，教育部数控机床及机械制造装备集成重点实验室，西安，710048 |
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| 基金项目： | 中国博士后面上基金(2017M613172)；陕西省教育厅自然科学基金(17JK0562)；校博士启动基金(102-451116012). |
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| 摘 要： | 针对TIG电弧增材制造5356铝合金试样不同区域微观组织及性能变化开展研究. 结果表明，试样结合层与沉积层水平交替呈现，底部区域沉积层宽度最大(~ 2.4 mm)，中间稳定区最小(~ 1.6 mm)；沉积层组织均以等轴晶为主，在灰色基体上弥散分布黑色β-Al3Mg2第二相，并伴有少量Mg2Si和(FeMn)Al6金属间化合物，结合层存在大量气孔及缩孔等缺陷；底部区域沉积层晶粒尺度最小，而结合层缺陷最多.不同区域水平方向强塑性无明显差异(
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| 关 键 词： | 5356铝合金 电弧增材 微观组织 强塑性 |
| 收稿时间： | 2019-09-25 |
Thermo-mechanical analysis of wire and arc additive layer manufacturing process on large multi-layer parts |
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| ZHAO Pengkang, TANG Cheng, PU Zunyan, LI Yan, LI Shujuan. Microstructure and tensile properties of 5356 aluminum alloy by TIG wire arc additive manufacturing[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2020, 41(5): 65-70, 77. DOI: 10.12073/j.hjxb.20190925002 |
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| Authors: | ZHAO Pengkang TANG Cheng PU Zunyan LI Yan LI Shujuan |
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| Affiliation: | 1.Shanxi Provincial Key Laboratory of Machinery Manufacturing Equipment, Xi'an University of Technology, Xi'an, 710048, China;2.Key Laboratory of the Ministry of Education for Integration of CNC Machine Tools and Machinery Manufacturing Equipment, Xi'an University of Technology, Xi'an, 710048, China |
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| Abstract: | The microstructure and properties of 5 356 aluminum alloy sample manufactured by TIG wire arc additive manufacturing in the different regions were studied. The results showed that interlayer of sample alternated with the deposition layer horizontally, the width of deposition layer at the bottom was the largest (~2.4 mm), and the middle stable region was the smallest (~1.6 mm). The deposition layer consisted of equiaxial grains, and the black second phase β-Al3Mg2 and a small amount of intermetallic compounds Mg2Si and (FeMn)Al6 diffused on the gray matrix. A large number of pores and shrinkage holes appeared at the interlayer. The deposition layer at the bottom had the smallest grain size, but the interlayer had the most defects. The strength and plasticity were approximately equal in the horizontal direction at the different regions (
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| Keywords: | 5356 aluminum alloy wire arc additive manufacturing (WAAM) microstructure strength and plasticity |
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