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열간 단조금형 이형제 분사용 매니폴드 적층 제조 설계 및 평가

Additive Manufacturing of a Release Agent Injection Manifold for Hot Forging

Journal of the Korean Society for Precision Engineering 2021;38(9):675-682.
Published online: September 1, 2021

1 한국재료연구원 3D프린팅재료연구실

2 한국기계연구원 3D프린팅장비연구실

3 한국재료연구원 재료특성평가실

4 세원금속㈜ 부설연구소

1 Department of 3D Printing Materials, Power Research Division, Korea Institute of Materials Science

2 Department of 3D Printing, Advanced Manufacturing Systems Research Division, Korea Institute of Machinery & Materials

3 Department of Materials Testing and Evaluation, Korea Institute of Materials Science

4 Research Center, Sewon Metal Co., Ltd.

#E-mail: taehoha@kimm.re.kr, TEL: +82-42-868-7946
• Received: July 5, 2021   • Revised: August 8, 2021   • Accepted: August 9, 2021

Copyright © The Korean Society for Precision Engineering

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Additive Manufacturing of a Release Agent Injection Manifold for Hot Forging
J. Korean Soc. Precis. Eng.. 2021;38(9):675-682.   Published online September 1, 2021
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Additive Manufacturing of a Release Agent Injection Manifold for Hot Forging
J. Korean Soc. Precis. Eng.. 2021;38(9):675-682.   Published online September 1, 2021
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Additive Manufacturing of a Release Agent Injection Manifold for Hot Forging
Image Image Image Image Image Image Image Image Image Image Image Image Image Image
Fig. 1 Design for additive manufacturing of release agent manifold
Fig. 2 Estimated weight of the designed manifold as a function of wall thickness and lattice volume ratio
Fig. 3 Additive manufacturing failure of manifolds
Fig. 4 Additive manufacturing of manifolds
Fig. 5 X-ray tomography image for manifold (Al-Mg-10Si)
Fig. 6 On-site test of additive manufacturing manifold
Fig. 7 Schematic figure of conventional manifold model
Fig. 8 Index of inlets and outlets in model manifold
Fig. 9 Finite element model for conventional manifold model
Fig. 10 Result for CFD on conventional manifold model
Fig. 11 Domain definitions
Fig. 12 Result for adjoint shape optimization
Fig. 13 3D visualization of reference and optimized model
Fig. 14 Results for CFD on verification models
Additive Manufacturing of a Release Agent Injection Manifold for Hot Forging
Volume [cm3] Weight [kg]
Original design manifold 1,081.6 2.91 (Al), 8.58 (SUS316L)
DfAM manifold 500.5 1.35 (Al-Mg-10Si), (SUS316L)
Fluid channel Inlet index Outlet index
Channel 1 I1 U11, U31
Channel 2 I2 U12, U22, U32
Channel 3 I3 U13, U14, U24, U34
Channel 4 I4 U21, U23, U25, U33, U43, U53
Channel 5 I5 U15, U35
Channel 6 I6 B11, B22, B23, B31
Channel 7 I7 B21, B24
Inlet index Outlet index
Conventional arrays Arrays for DfAM
I1 U11, U31 U13, U23, U43, U53
I2 U12, U22, U32 U11, U12, U14, U15
I3 U13, U14, U24, U34 U31, U32, U34, U35
I4 U21, U23, U25, U33, U43, U53 U21, U25, U33
I5 U15, U35 U22, U24
I6 B11, B23, B24 B11, B22, B23, B31
I7 B21, B22, B31 B21, B24
Table 1 The volume and weight for original manifold and designed one with Al-base and Fe-base powders
Table 2 Definitions of fluid channel
Table 3 Redefinition of in-out ports