Cristin-resultat-ID: 1856647
Sist endret: 16. mars 2022, 11:16
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Melting cell based compensated design method for improving dimensional accuracy of additively manufactured thin channels

Bidragsytere:
  • Li Sun
  • Xiaobo Ren
  • Jianying He og
  • Zhiliang Zhang

Tidsskrift

International Journal of Precision Engineering and Manufacturing - Green Technology
ISSN 2288-6206
e-ISSN 2198-0810
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Trykket: 2022
Volum: 9
Sider: 383 - 394
Open Access

Importkilder

Scopus-ID: 2-s2.0-85101407631

Beskrivelse Beskrivelse

Tittel

Melting cell based compensated design method for improving dimensional accuracy of additively manufactured thin channels

Sammendrag

Powder-bed fusion additive manufacturing technology makes it possible to produce parts with complicated geometry and high accuracy. However, dimensional deviation caused by powder overmelting and dross formation is still a challenge for manufacturing thin channels. In this study, we analyzed the origins of the overmelting of printed thin channels and propose a concept called "melting cell" to describe and quantify the geometric error. Based on the geometrical relationship between the melting cell and target channel, a method for predicting and optimizing the final geometry of thin channels is outlined. In order to verify the method, geometries of thin horizontal circular channels of various sizes are studied as examples. The predicted results by the proposed method show a remarkable agreement with available experimental results. Moreover, a mathematical description of the compensated design of a thin channel is also presented. The proposed method is simple yet effective. It can be easily extended to manufacturing of thin channels with various shapes, materials, and different powder bed fusion processes.

Bidragsytere

Li Sun

  • Tilknyttet:
    Forfatter
    ved Institutt for konstruksjonsteknikk ved Norges teknisk-naturvitenskapelige universitet
Aktiv cristin-person

Xiaobo Ren

  • Tilknyttet:
    Forfatter
    ved Materialer og nanoteknologi ved SINTEF AS

Jianying He

  • Tilknyttet:
    Forfatter
    ved Institutt for konstruksjonsteknikk ved Norges teknisk-naturvitenskapelige universitet

Zhiliang Zhang

  • Tilknyttet:
    Forfatter
    ved Institutt for konstruksjonsteknikk ved Norges teknisk-naturvitenskapelige universitet
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