TY - GEN
T1 - Analysis on pore generation in directed energy deposition using a chamber with a cooling system
AU - Sugiura, Yusuke
AU - Koike, Ryo
AU - Kakinuma, Yasuhiro
AU - Kondo, Masaki
N1 - Funding Information:
This work was supported by the Ministry of Education, Science, Sports and Culture with Grant-in-Aid for Young Scientists (B) Grant Number 17K14574.
Publisher Copyright:
© 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2020
Y1 - 2020
N2 - Directed energy deposition (DED), one of the additive manufacturing processes available for metals, is being employed in various industries. However, pore generation still remains a fatal problem that deteriorates the mechanical strength in DED products. In this study, analytical evaluation on pore generation in DED is conducted by introducing a special chamber. By classifying residual failures inside produced parts, pore generation is suppressed along with its cause. Experimental results show that the porosity rate can be drastically reduced in DED products by filling the chamber with argon, increasing the cooling rate, and applying re-melting process during deposition.
AB - Directed energy deposition (DED), one of the additive manufacturing processes available for metals, is being employed in various industries. However, pore generation still remains a fatal problem that deteriorates the mechanical strength in DED products. In this study, analytical evaluation on pore generation in DED is conducted by introducing a special chamber. By classifying residual failures inside produced parts, pore generation is suppressed along with its cause. Experimental results show that the porosity rate can be drastically reduced in DED products by filling the chamber with argon, increasing the cooling rate, and applying re-melting process during deposition.
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U2 - 10.2514/6.2020-1121
DO - 10.2514/6.2020-1121
M3 - Conference contribution
AN - SCOPUS:85091901517
SN - 9781624105951
T3 - AIAA Scitech 2020 Forum
BT - AIAA Scitech 2020 Forum
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - AIAA Scitech Forum, 2020
Y2 - 6 January 2020 through 10 January 2020
ER -