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Title: Spatter reduction laser scanning strategy in selective laser melting

Abstract

An additive manufacturing system wherein a gentle sintering run on heat-fusible particles is followed closely by a selective laser melting run. The laser sintering run slightly sinters the particles and causes the particles to adhere to each other, but not necessarily deform and lose their original shape. The particles become connected via bridges between each other, which holds them in place. During the laser melting run, the powder melts in place, with minimum particle ejection or mobility, since the particles form a network of connected particles.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1525032
Patent Number(s):
10,220,471
Application Number:
14/882,762
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015-10-14
Country of Publication:
United States
Language:
English

Citation Formats

Khairallah, Saad. Spatter reduction laser scanning strategy in selective laser melting. United States: N. p., 2019. Web.
Khairallah, Saad. Spatter reduction laser scanning strategy in selective laser melting. United States.
Khairallah, Saad. Tue . "Spatter reduction laser scanning strategy in selective laser melting". United States. https://www.osti.gov/servlets/purl/1525032.
@article{osti_1525032,
title = {Spatter reduction laser scanning strategy in selective laser melting},
author = {Khairallah, Saad},
abstractNote = {An additive manufacturing system wherein a gentle sintering run on heat-fusible particles is followed closely by a selective laser melting run. The laser sintering run slightly sinters the particles and causes the particles to adhere to each other, but not necessarily deform and lose their original shape. The particles become connected via bridges between each other, which holds them in place. During the laser melting run, the powder melts in place, with minimum particle ejection or mobility, since the particles form a network of connected particles.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {3}
}

Patent:

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