RT Journal Article
SR Electronic
A1 Burgerova, Karla
A1 Herman, Ales
T1 The issue of regeneration of metal powder DLMS 3D printing
JF Manufacturing Technology Journal
YR 2020
VO 20
IS 1
SP 11
OP 17
DO 10.21062/mft.2020.014
UL https://journalmt.com/artkey/mft-202001-0014.php
AB 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.