利用红外/红二极管激光组成的3D打印机进行选择性激光烧结(SLS)

Q3 Medicine
Srushti Lekurwale , Tukaram Karanwad , Subham Banerjee
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引用次数: 11

摘要

本研究的目的是利用并了解波长为808 nm的红外(IR)/红色二极管激光器在改变染料成分和温度变化的情况下,用于选择性激光烧结(SLS)介导的3D打印件烧结的可行性。将Kollicoat®IR (KIR)和红外(IR)激光吸收染料以不同浓度进行物理混合,并在固定的激光功率比下通过改变打印温度(进料和打印床)进行sls介导烧结,以实现3D打印。首先,根据染料的烧结性能选择所需的染料浓度(1.25% w/w),并在不同的进料床温度(100°C ~ 130°C)和打印床温度(120°C ~ 150°C)下使用相同的浓度烧结物理混合物(pm),保持激光功率比恒定(1.0)。结果表明,料床温度为130℃,打印床温度为150℃时,烧结性能较好。在上述条件下获得的打印件尺寸精度最高(直径9.31±0.30 mm,厚度3.56±0.04 mm),相对于喂入的CAD尺寸(直径10 mm,厚度3.60 mm),平均重量为77.45±4.56 mg。此外,在热学和官能团分析中,没有观察到烧结3D打印件的物理/热或化学降解。根据所给出的条件,我们可以得出波长为808 nm,激光功率比为1.0的红外/红色二极管激光器用于烧结3D打印件是可行的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Selective laser sintering (SLS) of 3D printlets using a 3D printer comprised of IR/red-diode laser

Selective laser sintering (SLS) of 3D printlets using a 3D printer comprised of IR/red-diode laser

The aim of this study was to employ and understand the feasibility of an infrared (IR)/red-diode laser with a wavelength of 808 nm for the selective laser sintering (SLS)-mediated sintering of 3D printlets, altering the dye composition and temperature variations. Kollicoat® IR (KIR) and an infrared (IR) laser-absorbing dye were physically mixed at various concentrations and subjected to SLS-mediated sintering to achieve 3D printlets by varying printing temperature (feed and print beds) at a fixed laser power ratio. Initially, the desired concentration of dye (1.25% w/w) was selected based on its sintering performance, and the same concentration was used to sinter the physical mixtures (PMs) at different feed bed temperatures (between 100 °C and 130 °C) and print bed temperature (120 °C to 150 °C), keeping the laser power ratio constant (1.0). It was found that good sintering performance was associated with a feed bed temperature of 130 °C and a print bed temperature of 150 °C. Printlets obtained from the aforementioned conditions showed highest dimensional accuracy (9.31 ± 0.30 mm diameter and 3.56 ± 0.04 mm thickness) in respect to feeded CAD dimensions (10 mm diameter and 3.60 mm thickness) with an average weight of 77.45 ± 4.56 mg. In addition, no physical/thermal or chemical degradation of the sintered 3D printlets was observed during the thermal and functional group analysis, respectively. Depending on the conditions given, we can conclude that an IR/red diode laser with a wavelength of 808 nm and a laser power ratio of 1.0 is feasible for sintering 3D printlets.

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来源期刊
Annals of 3D printed medicine
Annals of 3D printed medicine Medicine and Dentistry (General), Materials Science (General)
CiteScore
4.70
自引率
0.00%
发文量
0
审稿时长
131 days
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