Correlation between the Energy Input and the Microstructure of Additively Manufactured Cobalt-Chromium
Correlation between the Energy Input and the Microstructure of Additively Manufactured Cobalt-Chromium
复制标题
增材制造钴铬合金的能量输入与微观结构之间的相关性
DOI：
10.4028/www.scientific.net/ddf.379.157
复制
发表时间：
2017
影响因子：
--
通讯作者：
A. Öchsner
中科院分区：
文献类型：
--
作者：
L. Hitzler;P. Williams;M. Merkel;W. Hall;A. Öchsner
基于粉末床的增材制造技术对医疗部门非常感兴趣，最近的试验研究表明了其可行性。由于机器的快速改进以及所用电源的类型和特性的相关变化，关于制造参数的优化往往在各种机器之间有所不同。在这项研究中，进行了参数优化的SLM 280HL机器上的生物相容性牙科钴铬钼合金，具有400 W的光纤激光器。结果表明，更高的激光功率的可用性能够实现更节能的制造。此外，参数集快速和经济的制造，以及高密度和细晶粒的微观结构，被定义。
Powder-bed based additive manufacturing techniques are of high interest for the medical sector and recent trial studies have shown their feasibility. Due to the rapid improvements made in the machinery and the related changes in the type and characteristics of the utilized power source, optimizations regarding the fabrication parameters tend to differ amongst various machines. In this study, a parameter optimization was undertaken for a biocompatible dental CoCrMo alloy on a SLM 280HL machine, featuring a 400 W fibre laser. It was shown that the availability of higher laser powers enables a more energy efficient fabrication. Moreover, parameter sets for fast and economic fabrication, as well as for high density and fine-grained microstructure, were defined.