Manufacturing Technology 2020, 20(1):11-17 | DOI: 10.21062/mft.2020.014

The issue of regeneration of metal powder DLMS 3D printing

Karla Burgerova, Ales Herman
Faculty of Mechanical Engineering, Czech Technical University in Prague. Technická 4, 166 07 Praha 6. Czech Republic.

The subject of the article is a comparison of new and used powder for 3D metal printing. The powder is 316L stainless steel manufactured by Renishaw. The powder used was taken from the RENISHAW AM250 printer after use. Powder manufacturer Renishaw recommends using 15-45 micron powder in their 3D metal printers. An im-portant parameter of monitoring is the chemical composition of the metal powder and its changes during the thermal treatment during laser sintering. Another important parameter of a metal powder is its mechanical prop-erties, which determine the flowability, consistency and uniformity of powder application. By using an inert at-mosphere for sintering and storing the powder, these chemical changes can be prevented, especially against the formation of nitrides and oxides at elevated temperatures.

Keywords: 3D printing, laser sintering, metal powder, recycling powder
Grants and funding:

Specific Research Ministry of Education, Youth and Sport, No. SGS19/163/OHK2/3T/12.

Prepublished online: July 31, 2020; Published: August 6, 2020  Show citation

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Burgerova K, Herman A. The issue of regeneration of metal powder DLMS 3D printing. Manufacturing Technology. 2020;20(1):11-17. doi: 10.21062/mft.2020.014.
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