Dilation Characteristics of 3D PBF-LB/M AlSi10Mg Alloy

被引:1
|
作者
Dvorak, Karel [1 ]
Dvorakova, Jana [1 ]
Majtas, Dusan [2 ]
Sevcik, Radek [2 ]
Zarybnicka, Lucie [1 ,2 ]
机构
[1] Coll Polytech Jihlava, Dept Tech Studies, Jihlava 58601, Czech Republic
[2] Czech Acad Sci, Inst Theoret & Appl Mech, Prague 19000, Czech Republic
关键词
AlSi10Mg; direct metal laser sintering; printing topology; internal structure; dilation; mechanical properties; MECHANICAL-PROPERTIES; MICROSTRUCTURE;
D O I
10.3390/met13121961
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Application deployment of 3D-printed products represents a progressive area of industrial use of specific metal alloys. In parallel with starting points based on mechanical characteristics in the static and cyclic areas, dilation behavior is an important parameter. A typical application is, for example, components in the aerospace sector, where the components are exposed for a short period to a significant temperature difference in both positive and negative values. Current industrial trends lead to the deployment of additive technologies for producing aircraft system components and instrument parts. Testing of AlSi10Mg alloy samples prepared by direct metal laser sintering, in the past DMLS, now according to the standard laser powder bed fusion (PBF-LB/M) method, is carried out by measuring dilation during a controlled temperature course. The AlSi10Mg alloy is used for mechanically less stressed components, from which a high accuracy of functional dimensions is usually required, which can be affected by dilation characteristics in a wide temperature range. Additively produced components have different dilation characteristics within an identical alloy, often dependent on the production method and orientation during 3D printing. The article presents the testing results and subsequent application characteristics of an additively produced aluminum alloy, considering dilation characteristics.
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页数:18
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