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Effect of aluminum particle on properties of viscous medium during warm viscous pressure bulging

填充铝颗粒对黏性介质性能及温热胀形的影响

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Abstract

Incorporating aluminum particles into viscous medium was proposed to improve the thermal conductivity of the viscous medium and the efficiency of warm viscous pressure forming (WVPF) process. The influence of aluminum particles on a viscous medium was investigated through settling, thermal conductivity, and compression experiments. Warm viscous pressure bulging (WVPB) experiments were conducted on polyetherimide (PEI) and AZ31B magnesium alloy sheets to determine the influence of the aluminum particles size and fraction on the forming efficiency and formed specimens based on the heating preparation times and profile curves, wall thicknesses and surface roughness values of the bulging specimens. The results show that the thermal conductivity of the viscous medium and the WVPF efficiency can be greatly improved via the addition aluminum particles with appropriate size and fraction under certain temperature condition, but have less influence on other properties of viscous medium.

摘要

为了提高黏性介质的导热率以及黏性介质温热成形效率, 提出了将铝颗粒填充到黏性介质中的方法。 通过铝颗粒在黏性介质中的沉降实验、 热导率实验和压缩实验, 确定铝颗粒的粒径和填充质量分数对黏性介质性能的影响。 通过聚醚酰亚胺 (PEI) 板材和 AZ31B 镁合金板材黏性介质温热胀形实验, 确定铝颗粒的粒径和填充质量对胀形试验加热准备时间、 胀形试件轮廓曲线以及壁厚分布和表面粗糙度的影响。 研究结果表明, 在一定温度条件下, 选择合适的粒径和填充质量分数的铝颗粒作为黏性介质的填充物, 对黏性介质热导率的提高以及成形效率的改善较为明显, 但对黏性介质其他性能的影响较小。 该研究可以为提高黏性介质温热成形效率提供参考。

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Authors and Affiliations

  1. Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang, 110136, China

    Tie-jun Gao  (高铁军), Yang-jie Lv  (吕阳杰) & Qing Liu  (刘青)

  2. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China

    Zhong-jin Wang  (王忠金)

Authors
  1. Tie-jun Gao  (高铁军)
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  2. Yang-jie Lv  (吕阳杰)
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  3. Qing Liu  (刘青)
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  4. Zhong-jin Wang  (王忠金)
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Corresponding author

Correspondence to Tie-jun Gao  (高铁军).

Additional information

Foundation item: Project(51575364) supported by the National Natural Science Foundation of China; Project(2014ZE54024) supported by the Aviation Science Foundation of China; Project(LJQ2015083) supported by the Liaoning Excellent Talents in University, China

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Gao, Tj., Lv, Yj., Liu, Q. et al. Effect of aluminum particle on properties of viscous medium during warm viscous pressure bulging. J. Cent. South Univ. 25, 2085–2092 (2018). https://doi.org/10.1007/s11771-018-3898-1

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  • DOI: https://doi.org/10.1007/s11771-018-3898-1

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