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Current issue

ELEKTRO 7/2017 was released on June 26th 2017. Its digital version will be available on July 28th 2017.

Topic: Cables, conductors and cable technique; Connectors; Software; Marking and labelling

Main Article
Electrical insulation and thermal conductivity

SVĚTLO (Light) 4/2017 was released on August 8th 2017. Its digital version will be available on September 8th 2017.

Optical radiation effects and use
Glow-worm in a light engineer eyesight

Lighting installations
OSRAM TecDay Czech Republic 2017
Workroom illumination of Dominican provincial in Prague
innogy – reconstruction of company administrative centre

Researchers outline physics of metal 3-D printing

15.01.2016 | Phys.org | www.phys.org

While the most common method of metal 3D printing is growing exponentially, moving forward from producing prototypes to manufacturing critical parts will be possible only by reaching a fundamental understanding of the complex physics behind the process, according to a new paper authored by Lawrence Livermore National Laboratory (LLNL) researchers.

The powder bed fusion process, also known as selective laser melting (SLM), requires thin layers of a metal powder to be spread across a build area, where they are fused by a laser or electron beam based on a 3D computer-aided design (CAD) model. The process is repeated until a part is produced, layer-by-layer from the bottom up.

Researchers outlining a 3D print of metals

Even though the method has quickly progressed into a production technology, 3D printing of metal parts (also known as metal additive manufacturing) for industries such as aerospace and health care is hampered, according to LLNL's Wayne King, by a lack of confidence in the finished parts. This hurdle, he said, can be overcome by a combination of physics-based modeling and high-performance computing to determine the optimal parameters for building each part.

Read more at Phys.org

Image Credit: Lawrence Livermore National Laboratory

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