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The study of preparation process of spray formed 7075/Al-Si bimetallic gradient composite plate

机译：喷涂成型7075 / Al-Si双金属梯度复合板的制备工艺研究

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摘要

To determine the spray forming process parameters of 7075/Al-Si bimetallic gradient composite plate with two gas atomizers, a calculation model of the plate has been established by using the finite element software ANSYS. The effects of different motion trajectory, advance speed, swing cycle and spray center distance on shape, and silicon distribution of deposited plate have been simulated by the APDL programming language. The results show that a smooth and uniform surface is obtained when motion trajectory is in a regular jaggies mode. The deposited plate varies from platform to stepped shape with a center distance increasing from 20 mm to 50 mm; meanwhile, the width of the transition zone decreases gradually. As the period increases to 8 s, the silicon distribution of each layer presents a jagged fluctuation. Both the thickness of the deposited plate and the width of the transition zone decrease as the advance speed increases, except the silicon distribution. Finally, the modeling and simulation of the co-spray formed 7075/Al-Si bimetallic gradient composite plate are validated by experimental investigations and the simulation results are in good agreement with the actual results.
机译：为了确定带有两个气体雾化器的7075 / Al-Si双金属梯度复合板的喷射成形工艺参数，使用有限元软件ANSYS建立了该板的计算模型。 APDL编程语言已经模拟了不同运动轨迹，前进速度，摆动周期和喷涂中心距离对形状和沉积板硅分布的影响。结果表明，当运动轨迹处于常规锯齿状时，可以获得光滑均匀的表面。沉积的板从平台到阶梯状变化，中心距离从20毫米增加到50毫米；同时，过渡区的宽度逐渐减小。随着周期增加到8 s，每层的硅分布呈现锯齿状波动。除了硅分布以外，随着前进速度的增加，沉积板的厚度和过渡区的宽度都减小。最后，通过实验研究验证了共喷涂成形的7075 / Al-Si双金属梯度复合板的建模与仿真，仿真结果与实际结果吻合较好。

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  • 来源
    《Journal of Materials Research》 |2017年第16期|3109-3116|共8页
  • 作者

    Yu Lei; Cao Fuyang; Hou Liguo; Jia Yandong; Shen Hongxian; Li Haichao; Ning Zhiliang; Xing Dawei; Sun Jianfei;

  • 作者单位

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

    Laboratory for Microstructures, Institute of Materials, Shanghai University, Shanghai, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

    School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    APDL; gradient material; simulation; spray forming;

    机译：APDL;梯度材料模拟;喷涂成型;

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