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面曝光固化快速成型曝光时间的参数优化研究

钱波 陈子龙 王明义 李腾飞

钱波, 陈子龙, 王明义, 李腾飞. 面曝光固化快速成型曝光时间的参数优化研究[J]. 机械科学与技术, 2018, 37(2): 313-317. doi: 10.13433/j.cnki.1003-8728.2018.0224
引用本文: 钱波, 陈子龙, 王明义, 李腾飞. 面曝光固化快速成型曝光时间的参数优化研究[J]. 机械科学与技术, 2018, 37(2): 313-317. doi: 10.13433/j.cnki.1003-8728.2018.0224
Qian Bo, Chen Zilong, Wang Mingyi, Li Tengfei. Optimization Study on Exposure Time for Mask Projection Stereolithography System[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(2): 313-317. doi: 10.13433/j.cnki.1003-8728.2018.0224
Citation: Qian Bo, Chen Zilong, Wang Mingyi, Li Tengfei. Optimization Study on Exposure Time for Mask Projection Stereolithography System[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(2): 313-317. doi: 10.13433/j.cnki.1003-8728.2018.0224

面曝光固化快速成型曝光时间的参数优化研究

doi: 10.13433/j.cnki.1003-8728.2018.0224
基金项目: 

北京市自然科学基金项目(3132007)与国家自然科学基金项目(21206152)资助

详细信息
    作者简介:

    钱波(1979-),副教授,博士,研究方向为材料成型领域内增材制造方向材料成型装备与工艺,qianbo@ecust.edu.cn

Optimization Study on Exposure Time for Mask Projection Stereolithography System

  • 摘要: 面曝光快速成型是光固化成型领域快速高速发展的一种工艺,曝光时间是成型工艺中的关键参数之一,对于成型质量有直接关系:若曝光时间过短,正在固化的树脂层硬度不够,在重力的的作用下会使其下落,进而影响下层树脂的固化,一层影响一层,最终使得逐层固化的树脂精度不高,导致制件变形较大;若曝光时间过长,正在固化的树脂硬度会比较高,但是其收缩也会比较明显,同时会在固化层和树脂槽之间会产生真空,真空力会使打印金属平台上升时所产生的拉力增大,容易造成固化层脱落遗留在树脂槽中,导致打印物件制造失败。通过比较不同曝光时间下样品的凝胶含量和双键转化率两大指标,确定样品随着曝光时间的增加固化程度也在不断增加;然后通过比较不同曝光时间下样品的拉伸储能模量,发现样品随着曝光时间的增加力学性能也随之增强。通过综合比较固化程度、成型力学性能、成型精度三大因素,确定整体成型最佳曝光时间。通过两个分层试验验证了前述最佳曝光时间的合理性。
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出版历程
  • 收稿日期:  2016-10-27
  • 刊出日期:  2018-02-25

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