Rapid Manufacturing of Cellular Structures of Steel or Titaniumalumide
Rapid Manufacturing of Cellular Structures of Steel or Titaniumalumide
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钢或钛铝化物蜂窝结构的快速制造
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
J. Eckert
中科院分区：
文献类型：
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作者：
L. Löber;D. Klemm;U. Kühn;J. Eckert
选择性激光熔化(SLM)技术被用来制造不同的细胞结构。在拉杆中放置规则的单胞，以确定不同点阵结构的力学性能。将格子结构拉杆与完全致密拉杆的力学性能进行了比较。采用常规铸造方法生产拉力棒，比较SLM和铸件的力学性能。为了排除其他影响，对从粉末到成品的整个过程链进行了表征。用扫描电子显微镜、能谱仪、化学分析和光学显微镜对1.4404钢粉和钛铝化物(Ti-48Al-2Cr-2Nb[TiAl])粉末进行了表征。此外，还对颗粒大小分布进行了测量。给出了SLM工艺的详细实验条件。
The Selective Laser Melting (SLM) technique is used to produce different cellular structures. Regular unit cells are placed in tensile bars to determine the mechanical performance of different lattice structures. The mechanical properties of the tensile bars with lattice structures are compared to fully dense tensile bars. Tensile bars are produced by conventional casting to compare the mechanical properties between SLM and casting. To exclude other influences, the whole process chain starting from the powder to the finished part is characterized. The different powders, namely 1.4404 steel powder and a titaniumaluminde (Ti-48Al-2Cr-2Nb [TiAl]) powder are characterized via scanning electron microscopy (SEM), energy disperse x-ray spectroscopy (EDS), chemical analysis and light microscopy (LM). In addition measurements of the particle size distribution are conducted. Detailed experimental conditions of the SLM-process are given.