Powder smoke detection during additive manufacturing
Номер патента: SE2350051A1
Опубликовано: 21-07-2024
Автор(ы): Robin STEPHANSEN, Ulf Ackelid
Принадлежит: Freemelt AB
Опубликовано: 21-07-2024
Автор(ы): Robin STEPHANSEN, Ulf Ackelid
Принадлежит: Freemelt AB
Реферат: ABSTRACT ln accordance with one or more embodiments herein, an arrangement 200 for additive manufacturing by selective fusion, using an electron beam 220, of a three-dimensionai product from a powder bed 240, is provided. The arrangement 200 comprises at least one electron detecting arrangement 250 arranged to detect powder smoke by detecting electrons which have been scattered by the electron beam 220 hitting powder particles which levitate above the powder bed 240. Also provided is a method 700 for detecting powder smoke during additive manufacturing, the method 700 comprising: arranging 710 at least one electron detecting arrangement 250 in an arrangement 200 for additive manufacturing by selective fusion, using an electron beam 220, of a three-dimensionai product from a powder bed 240; detecting 770 electrons which have been scattered by the electron beam 220 hitting powder particles which levitate above the powder bed 240; and determining 780 whether there is powder smoke based on the output from the at least one electron detecting arrangement
Powder smoke detection during additive manufacturing
Номер патента: EP4403284A1. Автор: Ulf Ackelid,Robin STEPHANSEN. Владелец: Freemelt AB. Дата публикации: 2024-07-24.