The effects of infiltrant-related factors during post-processing on mechanical performance are fully considered for three-dimensional printing (3DP) technology. The factors contain infiltrant type, infiltrating means, infiltrating frequency and time interval of infiltrating.,A series of printing experiments are conducted and the parts are processed with different conditions by considering the above mentioned four parameters. Then the mechanical performances of the parts are tested from both macroscopic and microscopic papers. In the macroscopic view, the compressive strength of each printed part is measured by the materials testing machine – Instron 3367. In the microscopic view, scanning electron microscope and energy dispersion spectrum are used to obtain microstructure images and element content results. The pore size distributions of the parts are measured further to illustrate that if the particles are bound tightly by infiltrant. Then, partial least square (PLS) is used to conduct the analysis of the influencing factors, which can solve the small-sample problem well. The regression analysis and the influencing degree of each factor are explored further.,The experimental results show that commercial infiltrant has an outstanding performance than other super glues. The infiltrating action will own higher compressive strength than the brushing action. The higher infiltrating frequency and inconsistent infiltrating time interval will contribute to better mechanical performance. The PLS analysis shows that the most important factor is the infiltrating method. When compare the fitted value with the actual value, it is clear that when the compressive strength is higher, the fitting error will be smaller.,The research will have extensive applicability and practical significance for powder-based additive manufacturing.,The impact of the infiltrating-related post-processing on the performance of 3DP technology is easy to be ignored, which is fully taken into consideration in this paper. Both macroscopic and microscopic methods are conducted to explore, which can better explain the mechanical performance of the parts. Furthermore, as a small-sample method, PLS is used for influencing factors analysis. The variable importance in the projection index can explain the influencing degree of each parameter.

中文翻译：

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浸润剂相关参数对 3DP 技术机械性能的影响

三维打印（3DP）技术充分考虑了后处理过程中浸润剂相关因素对机械性能的影响。影响因素包括渗透剂类型、渗透方式、渗透频率和渗透时间间隔。考虑上述四个参数,进行了一系列印刷实验,并在不同条件下对零件进行了加工。然后从宏观和微观纸上测试零件的机械性能。在宏观上，每个打印部件的抗压强度是通过材料试验机——Instron 3367 进行测量的。在微观上，通过扫描电子显微镜和能量色散光谱获得微观结构图像和元素含量结果。进一步测量部件的孔径分布以说明颗粒是否被渗透剂紧密结合。然后利用偏最小二乘法(PLS)对影响因素进行分析，可以很好地解决小样本问题。进一步探讨了各因素的回归分析和影响程度。,实验结果表明，商业浸润剂比其他强力胶具有突出的性能。渗透作用将比刷涂作用具有更高的抗压强度。更高的渗透频率和不一致的渗透时间间隔将有助于更好的机械性能。PLS 分析表明，最重要的因素是渗透方法。当将拟合值与实际值进行比较时，显然,抗压强度越高,拟合误差越小,该研究对粉末基增材制造具有广泛的适用性和实际意义。,渗透相关后处理对性能的影响3DP技术很容易被忽视，本文充分考虑了这一点。宏观和微观两种方法进行探索，可以更好地解释零件的机械性能。此外，作为一种小样本方法，PLS 被用于影响因素分析。投影指标中的变量重要性可以解释各个参数的影响程度。该研究对粉末基增材制造具有广泛的适用性和现实意义。,渗透相关的后处理对3DP技术性能的影响很容易被忽略,本文充分考虑了这一点。宏观和微观两种方法进行探索，可以更好地解释零件的机械性能。此外，作为一种小样本方法，PLS 被用于影响因素分析。投影指标中的变量重要性可以解释各个参数的影响程度。该研究对粉末基增材制造具有广泛的适用性和现实意义。,渗透相关的后处理对3DP技术性能的影响很容易被忽略,本文充分考虑了这一点。宏观和微观两种方法进行探索，可以更好地解释零件的机械性能。此外，作为一种小样本方法，PLS 被用于影响因素分析。投影指标中的变量重要性可以解释各个参数的影响程度。更能说明零件的机械性能。此外，作为一种小样本方法，PLS 被用于影响因素分析。投影指标中的变量重要性可以解释各个参数的影响程度。更能说明零件的机械性能。此外，作为一种小样本方法，PLS 被用于影响因素分析。投影指标中的变量重要性可以解释各个参数的影响程度。