Effect of bed temperature and infra-red lamp power on the mechanical properties of parts produced using high-speed sintering
Effect of bed temperature and infra-red lamp power on the mechanical properties of parts produced using high-speed sintering
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DOI：
10.1080/17452750701520915
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发表时间：
2007-01-01
影响因子：
10.6
通讯作者：
Hopkinson, N.
中科院分区：
文献类型：
--
作者：
Majewski, C. E.;Hobbs, B. S.;Hopkinson, N.
高速烧结是一种新的、基于层的制造工艺，基于用辐射吸收材料打印连续横截面，并暴露在红外灯下，以便以适当的轮廓启动聚合物粉末颗粒的烧结。我们进行了研究以确定不同的工艺参数对使用该工艺生产的零件的机械性能的影响。结果表明，提高零件床的温度可提高所生产零件的机械性能，而增加红外灯功率也具有相同的效果，但程度较小。研究还发现，工艺参数的增加导致未烧结粉末的硬度相应增加，这可能导致后处理粉末去除困难。
High-speed sintering is a new, layer-based, manufacturing process, based on printing consecutive cross-sections with a radiation-absorbing material, and exposing to an infrared lamp, in order to initiate sintering of polymer powder particles in the appropriate profile. Research was carried out to determine the effects of varying process parameters on the mechanical properties of parts produced using this process. Results showed that increasing the temperature of the part bed led to an increase in the mechanical properties of the parts produced, and that increasing the infra-red lamp power had the same effect, but to a lesser degree. It was also found that these increases in process parameters led to a corresponding increase in the hardness of the unsintered powder, which could lead to difficulties with post-process powder removal.