正交设计法优化C/Al2O3复合粉体选择性激光烧结成型工艺的研究
Study on Optimization of Selective Laser Sintering Process for C/Al2O3 Composite Powder by Orthogonal Designing Experiment Method
王 鹏, 贾建峰, 高 耸, 宋红章
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作者单位:郑州大学 物理工程学院材料物理实验室, 河南 郑州 450052)
中文关键字:选择性激光烧结; C/Al2O3复合粉体; 工艺参数; 正交设计
英文关键字:selective laser sintering; C/Al2O3 composite powder; process parameters; orthogonal design
中文摘要:设计三因素四水平正交试验,以烧结样品的孔隙率和体积密度作为考查指标,优选激光烧结工艺参数。结果得到了一组较为合理的工艺参数:激光功率17.5A、扫描速度350 mm/s、扫描间隔60 μm。对实验结果分析表明:各种烧结工艺参数对激光烧结样品性能的影响主要体现在激光烧结温度和烧结时间这两个方面。烧结温度和烧结时间共同决定着激光烧结的过程。
英文摘要:Aiming at the porosity and bulk density of sintering samples, a four-factor, three-level orthogonal experiment was designed. The laser sintering parameters were successfully optimized according to the experimental results. The optimum process parameters combination: the laser power is 17.5 A, the scanning speed is 350 mm/s and the scanning interval is
60 μm. The laser sintering temperature and sintering time can contribute to the performance of the sintered samples.