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Severstal's Machine Builders Confirm the Suitability of Metal Powders for 3D Printing

Steel News - Published on Fri, 24 Jan 2020

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Severstal Russian Steel division’s machine-building center SSM-Tyazhmash has successfully studied the possibility of using water-sprayed powders of its own production in 3D-printing technologies. Research on selective laser melting and direct laser growing technologies was conducted by experts from St Petersburg Polytechnic University. Water-dispersed powders of grade 304, produced in the serial production workshop SSM-Tyazhmash, were studied. The work was carried out in two stages: water-sprayed powders were investigated in the initial state and after plasma spheroidization. The second involves the melting of a powder particle in a plasma jet for subsequent spherical shaping.

The obtained samples showed a result in yield strength and tensile strength comparable with the requirements of normative and technical documentation for this steel, and even higher with SLM technology. The use of powder after plasma spheroidization allows to achieve more stable mechanical characteristics, improves the quality characteristics of the part.

The machine-building center “SSM-Tyazhmash” has been producing powders of various grades for more than a quarter of a century and is the only producer of iron powders in Russia. In 2019, at the Metal Expo industry exhibition, the company received a gold medal for the development of diffusion-alloyed powders that have no analogues in Russia.

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Posted By : Rabi Wangkhem on Fri, 24 Jan 2020
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