Powder Bed Fusion
Powder Bed Fusion - Related Videos
01:20
Capillary Beds
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2024
Capillary beds are networks of tiny blood vessels that play a crucial role in the circulatory system. These beds are where the exchange of gases, nutrients, and waste products occurs between the blood and surrounding tissues. Each capillary bed consists of numerous capillaries, which are the smallest blood vessels in the body, typically only one cell-thick. This thinness allows for the efficient diffusion of substances. Capillaries connect arterioles, small branches of arteries, to venules,...
10:39
Single and Two-phase Flow in a Packed Bed Reactor
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA The goal of this experiment is to determine the magnitude of maldistribution in typical packed bed reactors in both single phase and two-phase (gas-liquid) flow and evaluate the effects of this maldistribution on pressure drop. The concepts of residence time distribution and dispersion are introduced through the use of tracers, and these concepts are related to physical...
08:14
Single Crystal and Powder X-ray Diffraction
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2023
Source: Tamara M. Powers, Department of Chemistry, Texas A&M University X-ray crystallography is a technique that uses X-rays to study the structure of molecules. X-ray diffraction (XRD) experiments are routinely carried out with either single-crystal or powdered samples. Single-crystal XRD: Single-crystal XRD allows for absolute structure determination. With single-crystal XRD data, the exact atomic positions can be observed, and thus bond lengths and angles can be determined. This...
02:45
Nuclear Fusion
0 Views •
2020
The process of converting very light nuclei into heavier nuclei is also accompanied by the conversion of mass into large amounts of energy, a process called fusion. The principal source of energy in the sun is a net fusion reaction in which four hydrogen nuclei fuse and ultimately produce one helium nucleus and two positrons. A helium nucleus has a mass that is 0.7% less than that of four hydrogen nuclei; this lost mass is converted into energy during the fusion. This reaction produces about...
09:11
Porosimetry of a Silica Alumina Powder
0 Views •
2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Surface area and pore size distribution are attributes used by adsorbent and catalyst manufacturers and users to ensure quality control and to determine when products are at the end of their useful lives. The surface area of a porous solid is directly related to its adsorption capacity or catalytic activity. The pore size distribution of an adsorbent or catalyst is...
FAQs
Layer control depends on coordination between the recoater and build platform. The recoater spreads a new thin layer of powder, then the platform lowers so the next layer can be added after selected regions are fused. Repeating this sequence converts a digital design into a vertically accumulated part rather than a single patterned exposure.
Laser- and electron-beam systems can act through different fusion modes: the source may melt selected powder regions or sinter them. In both cases, the beam is guided along digitally defined paths, so the processed locations correspond to the intended design. This controllable energy delivery helps produce customized forms rather than only simple external shapes.
Digitally defined paths are especially important when a medical part must reproduce a patient-specific form or contain intricate internal architecture. They specify which regions receive beam energy in each layer, allowing the build to follow customized geometry. That capability supports devices and models shaped around individual anatomical or design requirements.
Internal architecture expands the usefulness of the process beyond external shape. Powder bed fusion can create complex, porous structures whose design is relevant to tissue integration, alongside intricate geometries for customized medical parts. In medicine, this links control over a part’s interior and exterior form with implant development and regenerative medicine research.
Medical applications span patient-specific implants, prosthetics, surgical guides, and anatomical models. Implants and prosthetics represent customized physical devices, while guides and models provide patient-specific tools or anatomical representations. Together, these uses show how the process supports both biomedical device development and medically relevant preparation or planning.
The process can translate customized digital designs into implants, prosthetics, surgical guides, or anatomical models tailored to an individual case. This supports personalized treatment by connecting a person’s specific anatomical requirements with a corresponding physical object. The same design flexibility also advances biomedical device development when a standardized form does not match the intended medical application.
Regenerative medicine research benefits from the ability to investigate porous structures designed for tissue integration. Powder bed fusion can incorporate such internal architectures into customized three-dimensional parts, connecting manufacturing control with biomedical design questions. This makes the process relevant not only to finished implants but also to research on structures intended to support tissue integration.