TY - JOUR
T1 - Stabilization of metal structure formation in directed energy deposition by applying a coolant system
AU - Koike, Ryo
AU - Pagano, Luca
AU - Kakinuma, Yasuhiro
AU - Oda, Yohei
AU - Kondo, Masaki
N1 - Publisher Copyright:
© 2019 The Authors. Published by Elsevier B.V.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2019
Y1 - 2019
N2 - Directed energy deposition (DED), which is one of additive manufacturing processes applicable to metals, is suitable to produce a large-scale complex-shaped part in aerospace and automobile industries. However, mechanical characteristics in a DED-produced part often varies according to the thermal conduction at each deposition point. To ensure quality uniformity in a DED-produced part, a cooling process also should be actively performed to control the thermal condition. This study evaluates variation in crystal structure in parts produced with DED applying a coolant system. By performing the cooling process at certain intervals during deposition, the variations in Vickers hardness and crystal structure are effectively suppressed in DED of Inconel 625.
AB - Directed energy deposition (DED), which is one of additive manufacturing processes applicable to metals, is suitable to produce a large-scale complex-shaped part in aerospace and automobile industries. However, mechanical characteristics in a DED-produced part often varies according to the thermal conduction at each deposition point. To ensure quality uniformity in a DED-produced part, a cooling process also should be actively performed to control the thermal condition. This study evaluates variation in crystal structure in parts produced with DED applying a coolant system. By performing the cooling process at certain intervals during deposition, the variations in Vickers hardness and crystal structure are effectively suppressed in DED of Inconel 625.
KW - Coolant
KW - Directed energy deposition
KW - Heat treatment
KW - Inconel 625
UR - http://www.scopus.com/inward/record.url?scp=85084401626&partnerID=8YFLogxK
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U2 - 10.1016/j.promfg.2020.02.008
DO - 10.1016/j.promfg.2020.02.008
M3 - Conference article
AN - SCOPUS:85084401626
SN - 2351-9789
VL - 40
SP - 38
EP - 44
JO - Procedia Manufacturing
JF - Procedia Manufacturing
T2 - 19th Machining Innovations Conference for Aerospace Industry, MIC 2019
Y2 - 27 November 2019 through 28 November 2019
ER -