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基于流體力學的金屬增材制造過程仿真研究(英文版第二版)
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文后插圖
本書針對金屬增材制造加工過程進行了系統研究,基于計算流體動力學方法研究金屬增材制造工藝過程中的流體問題。第一章為緒論。第二章至第四章研究金屬增材制造打印機腔體內部流場及顆粒分布特性,并設計了新穎的流體罩和負壓管對打印機腔體內部流場優化以及濺射顆粒清除。第五章至第九章主要研究金屬增材制造加工過程中熔池特性,其中第五章研究了金屬熔池動力學特性,第六章研究了外加磁場對金屬增材制造過程中熔池以及凝固過程的影響,第七章和第八章研究了金屬增材制造過程中工件內部單氣孔缺陷和多氣孔缺陷的演化過程。第九章研究金屬增材制造工件激光清洗工藝,以控制工件表面粗糙度。本次主要修訂了技術內容的專業描述,更新了部分結果。
最新章節
- 文后插圖
- References
- 9.4 Conclusions
- 9.3.3 Experimental results
- 9.3.2 Morphology observation by 3D optical profiler
- 9.3.1 Sample fabrication
上架時間:2024-03-22 19:02:23
出版社:電子工業出版社
上海閱文信息技術有限公司已經獲得合法授權,并進行制作發行
- 文后插圖 更新時間:2024-03-22 20:08:32
- References
- 9.4 Conclusions
- 9.3.3 Experimental results
- 9.3.2 Morphology observation by 3D optical profiler
- 9.3.1 Sample fabrication
- 9.3 Experimental methods
- 9.2.3 Simulation results
- 9.2.2 Governing equations and boundary conditions
- 9.2.1 Physical model and assumptions
- 9.2 Model and theoretical calculation
- 9.1 Introduction
- Chapter 9 Investigation of laser polishing of four Laser-based Powder Bed Fusion alloy samples
- References
- 8.5 Conclusions
- 8.4 Numerical results and discussion
- 8.3.5 Boundary conditions
- 8.3.4 Level-set method
- 8.3.3 Latent heat of phase change
- 8.3.2 Gaussian heat source
- 8.3.1 Simulation model
- 8.3 Model and simulation
- 8.2.2 Detection of porosity by mirco-CT
- 8.2.1 Sample preparation
- 8.2 Experimental procedures
- 8.1 Introduction
- Chapter 8 Evolution of multi-pores in Ti-6Al-4V/Al-Si-10Mg alloy during laser post-processing
- References
- 7.5 Conclusions
- 7.4 Numerical results and discussion
- 7.3.4 Marangoni effect surface tension and recoil pressure
- 7.3.3 Thermal boundary conditions
- 7.3.2 Moving Gaussian heat source
- 7.3.1 Numerical model
- 7.3 Modeling and simulation
- 7.2.2 Determination of porosity by micro-CT
- 7.2.1 Sample fabrication
- 7.2 Experimental procedures
- 7.1 Introduction
- Chapter 7 Influence of laser post-processing on pore evolution of Ti-6Al-4V alloy by Laser-based Powder Bed Fusion
- References
- 6.4 Conclusions
- 6.3.3 Surface deformation of the sample
- 6.3.2 Lorentz force in the MP
- 6.3.1 Velocity field in the molten pool
- 6.3 Results
- 6.2.6 Lorentz force
- 6.2.5 Phase-change material
- 6.2.4 Marangoni convection
- 6.2.3 Heat transfer conditions
- 6.2.2 Mesh model and basic assumptions
- 6.2.1 Modeling of L-PBF
- 6.2 Modeling and simulation
- 6.1 Introduction
- Chapter 6 Simulation of surface deformation control during Laser-basedPowder Bed Fusion Al-Si-10Mg powder using an external magnetic field
- References
- 5.5 Conclusions
- 5.4.3 Development of the evaporation region
- 5.4.2 Formation and solidification of the molten pool
- 5.4.1 Surface temperature distribution and morphology
- 5.4 Results and discussions
- 5.3 Experimental procedures
- 5.2.6 Mesh generation
- 5.2.5 Boundary conditions setup
- 5.2.4 Phase change
- 5.2.3 Heat source model
- 5.2.2 Governing equations
- 5.2.1 Model establishing and assumptions
- 5.2 Modeling approach and numerical simulation
- 5.1 Introduction
- Chapter 5 Evolution of molten pool during Laser-based Powder Bed Fusion of Ti-6Al-4V
- References
- 4.4 Summary and conclusions
- 4.3.3 Effect of initial particle velocity
- 4.3.2 Effect of outlet flow rate
- 4.3.1 Effect of pipe diameter
- 4.3 Simulation results and discussions
- 4.2.2 Numerical model of the L-PBF printer
- 4.2.1 Geometric model of the L-PBF printer
- 4.2 Simulation model of the L-PBF printer
- 4.1 Introduction
- Chapter 4 Numerical investigation of controlling spatters with negative pressure pipe in Laser-based Powder Bed Fusion process
- References
- 3.4 Summary and conclusions
- 3.3.2 Influence of the fluid stabilizing cover on particles distribution and removing rate
- 3.3.1 Influence of the fluid stabilizing cover on the flow field
- 3.3 Simulation results and discussions
- 3.2.4 Model of the fluid stabilizing cover and particles
- 3.2.3 Mesh of the L-PBF printer with a fluid stabilizing cover
- 3.2.2 Numerical model of printer with a fluid stabilizing cover
- 3.2.1 Geometry of the L-PBF printer with a fluid stabilizing cover
- 3.2 Simulation model of the L-PBF printer
- 3.1 Introduction
- Chapter 3 Investigation of optimizing the flow field with fluid cover in Laser-based Powder Bed Fusion manufacturing process
- References
- 2.4 Conclusions
- 2.3.3 Distribution of spatter particles
- 2.3.2 Distribution of the temperature field
- 2.3.1 Distribution of the flow field
- 2.3 Simulation results
- 2.2.3 Numerical model of the L-PBF printer
- 2.2.2 Geometric model of the L-PBF printer
- 2.2.1 Problem description
- 2.2 Simulation model of the L-PBF printer
- 2.1 Introduction
- Chapter 2 Investigation of the flow field in Laser-based Powder Bed Fusion manufacturing
- 1.3 Outline
- 1.2 Motivation
- 1.1 Background
- Chapter 1 Introduction
- Preface
- 內容簡介
- 版權信息
- 封面
- 封面
- 版權信息
- 內容簡介
- Preface
- Chapter 1 Introduction
- 1.1 Background
- 1.2 Motivation
- 1.3 Outline
- Chapter 2 Investigation of the flow field in Laser-based Powder Bed Fusion manufacturing
- 2.1 Introduction
- 2.2 Simulation model of the L-PBF printer
- 2.2.1 Problem description
- 2.2.2 Geometric model of the L-PBF printer
- 2.2.3 Numerical model of the L-PBF printer
- 2.3 Simulation results
- 2.3.1 Distribution of the flow field
- 2.3.2 Distribution of the temperature field
- 2.3.3 Distribution of spatter particles
- 2.4 Conclusions
- References
- Chapter 3 Investigation of optimizing the flow field with fluid cover in Laser-based Powder Bed Fusion manufacturing process
- 3.1 Introduction
- 3.2 Simulation model of the L-PBF printer
- 3.2.1 Geometry of the L-PBF printer with a fluid stabilizing cover
- 3.2.2 Numerical model of printer with a fluid stabilizing cover
- 3.2.3 Mesh of the L-PBF printer with a fluid stabilizing cover
- 3.2.4 Model of the fluid stabilizing cover and particles
- 3.3 Simulation results and discussions
- 3.3.1 Influence of the fluid stabilizing cover on the flow field
- 3.3.2 Influence of the fluid stabilizing cover on particles distribution and removing rate
- 3.4 Summary and conclusions
- References
- Chapter 4 Numerical investigation of controlling spatters with negative pressure pipe in Laser-based Powder Bed Fusion process
- 4.1 Introduction
- 4.2 Simulation model of the L-PBF printer
- 4.2.1 Geometric model of the L-PBF printer
- 4.2.2 Numerical model of the L-PBF printer
- 4.3 Simulation results and discussions
- 4.3.1 Effect of pipe diameter
- 4.3.2 Effect of outlet flow rate
- 4.3.3 Effect of initial particle velocity
- 4.4 Summary and conclusions
- References
- Chapter 5 Evolution of molten pool during Laser-based Powder Bed Fusion of Ti-6Al-4V
- 5.1 Introduction
- 5.2 Modeling approach and numerical simulation
- 5.2.1 Model establishing and assumptions
- 5.2.2 Governing equations
- 5.2.3 Heat source model
- 5.2.4 Phase change
- 5.2.5 Boundary conditions setup
- 5.2.6 Mesh generation
- 5.3 Experimental procedures
- 5.4 Results and discussions
- 5.4.1 Surface temperature distribution and morphology
- 5.4.2 Formation and solidification of the molten pool
- 5.4.3 Development of the evaporation region
- 5.5 Conclusions
- References
- Chapter 6 Simulation of surface deformation control during Laser-basedPowder Bed Fusion Al-Si-10Mg powder using an external magnetic field
- 6.1 Introduction
- 6.2 Modeling and simulation
- 6.2.1 Modeling of L-PBF
- 6.2.2 Mesh model and basic assumptions
- 6.2.3 Heat transfer conditions
- 6.2.4 Marangoni convection
- 6.2.5 Phase-change material
- 6.2.6 Lorentz force
- 6.3 Results
- 6.3.1 Velocity field in the molten pool
- 6.3.2 Lorentz force in the MP
- 6.3.3 Surface deformation of the sample
- 6.4 Conclusions
- References
- Chapter 7 Influence of laser post-processing on pore evolution of Ti-6Al-4V alloy by Laser-based Powder Bed Fusion
- 7.1 Introduction
- 7.2 Experimental procedures
- 7.2.1 Sample fabrication
- 7.2.2 Determination of porosity by micro-CT
- 7.3 Modeling and simulation
- 7.3.1 Numerical model
- 7.3.2 Moving Gaussian heat source
- 7.3.3 Thermal boundary conditions
- 7.3.4 Marangoni effect surface tension and recoil pressure
- 7.4 Numerical results and discussion
- 7.5 Conclusions
- References
- Chapter 8 Evolution of multi-pores in Ti-6Al-4V/Al-Si-10Mg alloy during laser post-processing
- 8.1 Introduction
- 8.2 Experimental procedures
- 8.2.1 Sample preparation
- 8.2.2 Detection of porosity by mirco-CT
- 8.3 Model and simulation
- 8.3.1 Simulation model
- 8.3.2 Gaussian heat source
- 8.3.3 Latent heat of phase change
- 8.3.4 Level-set method
- 8.3.5 Boundary conditions
- 8.4 Numerical results and discussion
- 8.5 Conclusions
- References
- Chapter 9 Investigation of laser polishing of four Laser-based Powder Bed Fusion alloy samples
- 9.1 Introduction
- 9.2 Model and theoretical calculation
- 9.2.1 Physical model and assumptions
- 9.2.2 Governing equations and boundary conditions
- 9.2.3 Simulation results
- 9.3 Experimental methods
- 9.3.1 Sample fabrication
- 9.3.2 Morphology observation by 3D optical profiler
- 9.3.3 Experimental results
- 9.4 Conclusions
- References
- 文后插圖 更新時間:2024-03-22 20:08:32