公开(公告)号：US20220118521A1

公开(公告)日：2022-04-21

申请号：US17504016

申请日：2021-10-18

Applicant: Arcam AB

Inventor： Mattias Fager ,  Simon Blomé ,  Linus Haglund ,  Joakim Ålgårdh ,  Alexander Dahl

IPC: B22F12/47 ,  B22F12/41 ,  B22F12/90 ,  B22F10/36 ,  B23K15/00 ,  B33Y30/00

Abstract: Systems, apparatus, and methods for weld tapering at a trailing edge using time multiplexing are disclosed. Systems, apparatus, and methods for control of an electron beam for welding using time multiplexing are disclosed. An example apparatus includes memory and at least one processor to execute instructions to at least: in a first portion of a line of an object being formed, control an energy beam at a first position at a first time to form a weld from a powder; and in a second portion of a line of the object being formed, control the energy beam to perform a dispersion sweep at a second position at a second time.

公开(公告)号：US20250041942A1

公开(公告)日：2025-02-06

申请号：US18228198

申请日：2023-07-31

Applicant: Arcam AB

Inventor： Markus Ramsperger ,  John Bondestam Malmberg ,  Alexander Dahl

IPC: B22F10/31 ,  B22F10/36 ,  B22F10/80 ,  B22F12/41 ,  B22F12/90 ,  B33Y50/00

Abstract: A method for determining a melt strategy for an additive manufacturing system comprises: receiving geometry data corresponding to a surface of a powder layer; populating the geometry data with melting points; assigning at least one treatment action to each melting point; assigning a melt parameter and a prerequisite thermal characteristic to each treatment action; generating a preliminary list; creating a revised order comprising a plurality of sequential unpopulated items; and populating the revised order by: identifying an earliest unpopulated item, determining if any treatment action comprises prerequisite thermal characteristics satisfied for a time of the earliest unpopulated item, assigning an assignment to the earliest unpopulated item; removing the treatment action comprising prerequisite thermal characteristics which are satisfied for the sequential time of the earliest unpopulated item from the preliminary list, classifying the earliest unpopulated item as a populated item, and returning to identifying the earliest unpopulated item.