覆膜砂选择性激光烧结工艺

发布时间：2018-07-03 16:23

  本文选题：激光技术 + 选择性激光烧结　； 参考：《激光与光电子学进展》2017年09期

【摘要】：基于选择性激光烧结(SLS)技术,在不同工艺参数组合下,分析了激光扫描速度、激光功率、分层厚度、扫描间距以及预热温度等工艺参数对SLS原型件强度与尺寸精度的影响。研究结果表明,各烧结工艺参数均会影响原型件的烧结强度和尺寸精度,且各因子之间存在交互作用。当激光功率为40 W、扫描速度为2500mm·s~(-1)、扫描间距为0.15mm、分层厚度为0.20mm、预热温度为60℃时,烧结强度与尺寸精度达到最优。在此基础上,结合传统砂型铸造方式,实现了全新高端工程机械液压多路阀的快速铸造,验证了基于SLS技术的快速铸造液压元件的可行性。
[Abstract]:Based on the selective laser sintering (SLS) technology, the effects of laser scanning speed, laser power, delamination thickness, scanning spacing and preheating temperature on the strength and dimensional accuracy of SLS prototypes were analyzed. The results show that each sintering process parameter will affect the sintering strength and size accuracy of the prototype parts, and there is interaction between each factor. When laser power is 40 W, scanning speed is 2500mm s ~ (-1), scanning distance is 0.15 mm, delamination thickness is 0.20 mm, preheating temperature is 60 鈩，

本文编号：2094238