Powder Bed Fusion (PBF), also called Selective Laser Sintering (SLS), is the layer-by-layer construction technology of 3D objects, where a laser beam selectively traces over a predefined area on the powder layer. One of the most widely used materials is PA12.
In our last episodes, we focused mainly on thermal material behavior measured with Differential Scanning Calorimetry (DSC). Today, Dr. Nathalie Rudolph will talk about how residual stresses can be estimated using Dynamic Mechanical Analysis (DMA).
A way to reduce shrinkage and increase dimensional stability of polymers is the addition of inorganic fillers, for instance glass beads. Learn how to determinethermal expansion of 3D printed samples – both unfilled and filled with hollows glass beads.
The build orientation of samples has an effect on the mechanical properties of Selective Laser Sintering (SLS) parts. Therefore, thermophysical properties need to be assessed in different directions. Learn how to prepare filled samples for laser flash analysis!
The modification of Selective Laser Sintering (SLS) powders with fillers is a good way to modify the properties of the produced parts without the necessity for new powder materials. Learn how to assess the effect of copper fillers on the processing behavior.
Due to the still limited number of available materials for the Selective Laser Sintering process, there is a constant demand for materials with different properties. The addition of any filler to SLS powder typically has an effect on the processing behavior. Today, we investigate the crystallization behavior of PA12 powder filled with copper spheres and flakes.
Significant efforts have been made to model and simulate the Selective Laser Sintering process as information about the temperature field in lower layers is difficult to measure. Learn how specific heat capacity can help!
The Identify software is one of a kind in the field of Thermal Analysis. Via database comparisons, it only takes a second for Identify to identify and classify your samples. We have added Additive Manufacturing materials to our database! Read more in the article!
Selective Laser Sintering (SLS) is one of the most used Additive Manufacturing technologies to produce structural plastic parts. When operated at elevated temperature, any residual stresses could be detrimental for the part performance. In order to better understand residual stresses, knowledge of a material’s modulus is needed. Learn more about residual stress and how to measure the material property using a thermal analysis method.
Wilo SE is a worldwide manufacturer of pumps and pump systems for building services, the entire water management chain and industry. It comes as no surprise that Wilo is working with cutting-edge technologies such as Additive Manufacturing. Learn how they use the NETZSCH DSC 214 Polyma to understand the thermal behavior of new material choices.