Contour laser strategy and its benefits for lattice structure manufacturing by selective laser melting technology

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU142782" target="_blank" >RIV/00216305:26210/22:PU142782 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S1526612521008781" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1526612521008781</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmapro.2021.12.006" target="_blank" >10.1016/j.jmapro.2021.12.006</a>

Result language

angličtina

Original language name

Contour laser strategy and its benefits for lattice structure manufacturing by selective laser melting technology

Original language description

This paper deals with the research of the Selective Laser Melting (SLM) scanning strategy to produce lattice structures from AlSi10Mg powder material. Nowadays, most of the SLM end-users use the laser strategy and parameters recommended by powder or machine suppliers to produce different components. However, this setup can cause material and shape imperfection, especially in the case of low-volume lattice structures. In this study, the default meander scanning strategy for AlSi10Mg material was changed to contour strategy and its main SLM process parameters were developed. Commonly used experiments were modified to consider the lattice structure's shape and dimension. The results showed that by using developed parameters, i.e., recommended range of input linear energy of 0.25-0.4 J/mm; track width based on strut diameter, input linear energy and the orientation of strut; the overlap of the laser contour tracks of 35% and inside-out direction; it is possible to produce lattice structures with high material density (more than 99.8%) and low surface roughness in a wide range of strut diameters from 0.6 to 3 mm. The differences in lattice structure production of vertical and inclined struts are described and discussed in relation to the SLM process during powder melting with use of thermal transient simulation.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Manufacturing Processes

ISSN

1526-6125

e-ISSN

—

Volume of the periodical

74

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

18

Pages from-to

640-657

UT code for WoS article

000742491100002

EID of the result in the Scopus database

2-s2.0-85122334362