금속 3D 프린팅 / 적층 제조 수치해석(FLOW-3D Weld/DEM)

Binder jetting

바인더 분사 시뮬레이션은 모세관 힘의 영향을 받는 파우더 베드의 바인더 확산 및 침투에 대한 통찰력을 제공합니다. 공정 매개 변수와 재료 특성은 증착 및 확산 공정에 직접적인 영향을 미친다.

Direct energy deposition

FLOW-3D의 Particle 모델을 사용하여 직접 에너지 축적 프로세스를 시뮬레이션 할 수도 있습니다. 고체 기판에 분말 주입 속도와 열유속 입사를 지정함으로써, 고체 입자는 용융풀을 통해 질량, 추진력 및 에너지를 추가할 수 있습니다. 다음 동영상에서는 용융풀을 통해 고체 금속 입자가 주입되고 이어서 기판에 용융풀응 응고시키는 과정이 관찰됩니다.


관련 기술자료

Fig. 3. Experimental angled top-view setup for laser welding of zinc-coated steel with a laser illumination.

Effect of zinc vapor forces on spattering in partial penetration laser welding of zinc-coated steels

Yu Hao a, Nannan Chen a,b, Hui-Ping Wang c,*, Blair E. Carlson c, Fenggui Lu a,*a Shanghai Key Laboratory of ...
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Liquid-solid co-printing of multi-material 3D fluidic devices via material jetting

재료 분사를 통한 다중 재료 3D 유체 장치의 액체-고체 공동 인쇄

Liquid-solid co-printing of multi-material 3D fluidic devices via material jetting BrandonHayes,Travis Hainsworth, Robert MacCurdyUniversity of Colorado Boulder, Department of Mechanical ...
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Figure 3: 3D temperature contours and 2D melt pool cross-sections where the melt pool is stabilized at x=500 µm from the start of the laser initial location for cases where (a) absorptivity = 0.1, Recoil pressure coefficient B = 1 and laser beam radius = 12 µm, (b) absorptivity = 0.1, Recoil pressure coefficient B = 20 and laser beam radius = 12 µm, (c) absorptivity = 0.1, Recoil pressure coefficient B = 1 and laser beam radius = 18 µm, (d) absorptivity = 0.45, Recoil pressure coefficient B = 1 and laser beam radius = 18 µm, (e) absorptivity = 0.45, Recoil pressure coefficient B = 20 and laser beam radius = 12 µm, (f) absorptivity = 0.45, Recoil pressure coefficient B = 20 and laser beam radius = 18 µm.

MULTI-PHYSICS NUMERICAL MODELLING OF 316L AUSTENITIC STAINLESS STEEL IN LASER POWDER BED FUSION PROCESS AT MESO-SCALE

W.E. Alphonso1, M.Bayat1,*, M. Baier 2, S. Carmignato2, J.H. Hattel11Department of Mechanical Engineering, Technical University of Denmark (DTU), Lyngby, Denmark2Department ...
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Figure 2: Temperature contours and melt pool border lines at different times for the 50 % duty cycle case: (a) - (c) Δtcycle = 400 μs, (d) – (f) Δtcycle = 1000 μs and (g) – (i) Δtcycle = 3000 μs.

MULTIPHYSICS SIMULATION OF THEMRAL AND FLUID DYNAMICS PHENOMENA DURING THE PULSED LASER POWDER BED FUSION PROCESS OF 316-L STEEL

M. Bayat* , V. K. Nadimpalli, J. H. Hattel1Department of Mechanical Engineering, Technical University of Denmark (DTU), Produktionstorvet425, Kgs. 2800, ...
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Fluid Thermodynamic Simulation of Ti-6Al-4V Alloy in Laser Wire Deposition

Fluid Thermodynamic Simulation of Ti-6Al-4V Alloy in Laser Wire Deposition

Xiang Wang, Lin-Jie Zhang, Jie Ning, and Suck-Joo NaPublished Online:8 Apr 2022https://doi.org/10.1089/3dp.2021.0159 Abstract A 3D numerical model of heat transfer and fluid flow ...
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図3 He ガスストリッパー装置の図と全景.

RIKEN RIBF의 He-Gas 스트리퍼 및 회전 디스크 스트리퍼

He Gas Stripper and Rotating Disk Stripper at the RIKEN RIBF 理研 RI ビームファクトリーにおける He ガスと回転ディスクストリッパー 今尾 浩士 *・長谷部 裕雄 ...
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Figure 3.10: Snapshots of Temperature Profile for Single Track in Keyhole Regime (P = 250W and V = 0.5m/s) at the Preheating Temperature of 100 °C

Multiscale Process Modeling of Residual Deformation and Defect Formation for Laser Powder Bed Fusion Additive Manufacturing

Qian Chen, PhDUniversity of Pittsburgh, 2021 레이저 분말 베드 퓨전(L-PBF) 적층 제조(AM)는 우수한 기계적 특성으로 그물 모양에 가까운 복잡한 부품을 ...
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Forming characteristics and control method of weld bead for GMAW on curved surface

곡면에 GMAW용 용접 비드의 형성 특성 및 제어 방법

Forming characteristics and control method of weld bead for GMAW on curved surface Mao Ni, Xunpeng Qin, Zeqi Hu, Feilong ...
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Figure 2. (a) Scanning electron microscopy images of Ti6Al4V powder particles and (b) simulated powder bed using discrete element modelling

Laser Powder Bed에서 Laser Drilling에 의한 Keyhole 형성 Ti6Al4V 생체 의학 합금의 융합: 메조스코픽 전산유체역학 시뮬레이션 대 경험적 검증을 사용한 수학적 모델링

Keyhole Formation by Laser Drilling in Laser Powder Bed Fusion of Ti6Al4V Biomedical Alloy: Mesoscopic Computational Fluid Dynamics Simulation versus ...
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Design of Inductive Sensor System for Wear Particles in Oil

금속재료 표면의 잔류응력 초음파 측정법

Design of Inductive Sensor System for Wear Particles in Oil NIU Ze, LI Kai, BAI Wenbin, SUN Yuanyuan, GONG Qingqing, ...
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금속 3D 프린팅 수치해석