Uncertainty of CT dimensional measurements performed on metal additively manufactured lattice structures
Uncertainty of CT dimensional measurements performed on metal additively manufactured lattice structures
复制标题
对金属增材制造的晶格结构进行 CT 尺寸测量的不确定性
DOI：
10.58286/25084
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
S. Carmignato
中科院分区：
文献类型：
--
作者：
F. Zanini;M. Sorgato;E. Savio;S. Carmignato
具有受控晶格结构的金属部件可以通过增材制造（AM）技术有效地生产。然而，金属AM产品的关键方面之一是尺寸和几何精度。X射线计算机断层扫描（CT）可用于实现先进的控制方法，这些方法对于改善复杂金属AM部件的几何特性和质量至关重要。在这项工作中，Ti6Al4V晶格结构产生的激光粉末床融合分析使用一个快速X射线CT系统。两种不同的方法来确定尺寸测量的不确定性的基础上的CT重建体积的实施和比较：“替代方法”和“多个测量”的方法。这两种方法的优点和局限性进行了识别和讨论。
Metal parts with controlled lattice structures can effectively be produced via additive manufacturing (AM) technologies. However, one of the critical aspects of metal AM products is the dimensional and geometrical accuracy. X-ray computed tomography (CT) can be applied to enable advanced control methods that are fundamental for improving the geometrical characteristics and the quality of complex metal AM parts. In this work, Ti6Al4V lattice structures produced by laser powder bed fusion were analysed using a metrological X-ray CT system. Two different approaches for determining the uncertainty of dimensional measurements based on the CT reconstructed volumes were implemented and compared: the "substitution method" and the "multiple measurements" approach. Advantages and limitations of both approaches are identified and discussed.
影响因子：
4.1
作者：
Leach, R. K.;Bourell, D.;Dewulf, W.
通讯作者：
Dewulf, W.