Single shot, large area metal sintering with micrometer level resolution.
Single shot, large area metal sintering with micrometer level resolution.
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DOI：
10.1364/oe.26.025534
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发表时间：
2018-09
期刊：
影响因子：
3.8
通讯作者：
N. Roy;Dipankar Behera;O. Dibua;C. S. Foong;M. Cullinan
中科院分区：
文献类型：
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作者：
N. Roy;Dipankar Behera;O. Dibua;C. S. Foong;M. Cullinan
本文介绍了微尺度选择性激光烧结（μ-SLS）系统的光学设计，该系统旨在允许大面积的纳米颗粒同时烧结，同时仍保持微米尺度的特征分辨率，以提高微尺度增材制造工艺的吞吐量。该光学设计表明，能够在单次射击中烧结2.3 mm × 1.3 mm面积的金属纳米颗粒，这些纳米颗粒已扩散成约400 nm厚的层，特征分辨率约为3 μm。该系统的光学分辨率约为1.2 μm，表明只需约2-3个像素即可形成良好的烧结部件。此外，利用本文提出的光学设计，估计μ-SLS系统应该能够实现~63 mm3/hr的体积吞吐量，使该工艺成为当今三维金属结构微尺度增材制造的最高吞吐量工艺之一。
- This paper presents the optics design for a microscale Selective Laser Sintering (μ-SLS) system that aims to allow large areas of nanoparticles to be sintered simultaneously while still maintaining micrometer scale feature resolutions in order to improve the throughput of the microscale additive manufacturing process. The optics design is shown to be able to sinter a 2.3 mm by 1.3 mm area of metal nanoparticles that have been spread into a ~400 nm thick layer with a feature resolution of ~3 μm in a single shot. The optical resolution of this system is shown to be ~1.2 μm indicating that only about 2-3 pixels are needed to form a good sintered part. In addition, using the optical design presented in this paper, it is estimated that the μ-SLS system should be able to achieve a volumetric throughput of ~63 mm3/hr, making this process one of the highest throughput processes available today for the microscale additive manufacturing of three-dimensional metal structures.