Electron Beam Wire Deposition Technology and Its Application (Additive Manufacturing Technology)

✍ Scribed by Shuili Gong, Jianrong Liu, Guang Yang, Haiying Xu

• Publisher: Springer
• Year: 2022
• Tongue: English
• Leaves: 346
• Category: Library

✦ Synopsis

This book provides a systematic and comprehensive introduction to the technical principles, materials, processes, and equipment of the electron beam wire deposition technology (EBWD), while focusing on the research results of the author’s scientific research team engaged in this technology in China. It mainly introduces the conceptual connotation, principle, and characteristics of the EBWD technology, its position and function in the additive manufacturing technology system, the direction and trend of technological development at home and abroad, the fundamentals and application results of the EBWD technology, including technical principles, equipment technology, special materials, manufacturing technology, quality testing, and application practices. So this book can serve as a reference book for teachers, students, and scientific researchers in scientific research institutions who are engaged in relevant studies.

✦ Table of Contents

Foreword
Preface
Introduction
Contents
1 Introduction
1.1 Concept and Connotation
1.2 Technical Features and Advantages
1.3 Principles and Characteristics of the Electron Beam Wire Deposition Technology
1.3.1 Principle
1.3.2 Features
1.4 Role of the EBWD Technology in the National Defense and National Economy
1.5 Current Status and Development Trends at Home and Abroad
1.5.1 Technological Status of Foreign Researches
1.5.2 Status of Domestic Researches
References
2 Electron Beam Wire Deposition Equipment
2.1 Structure and Principle of the Equipment
2.2 Overview of Equipment at Home and Abroad
2.2.1 Overview of Equipment Abroad
2.2.2 Overall Development in China
2.3 Introduction to Homemade Equipment
2.3.1 Inverter Power Supply for Electron Beam Machining
2.3.2 Electron Beam Gun
2.3.3 Vacuum System and Its Control
2.3.4 Wire Feeding System and Its Control
2.3.5 Three-Dimensional Workbench
2.3.6 Image Monitoring and Acquisition System
2.3.7 Electrical Control System
2.3.8 Data Processing Software—Electron Beam RP
3 Typical Materials for Electron Beam Wire Deposition
3.1 Manufacturing Technology of Metal Wire for EBWD Use
3.1.1 Technical Requirements
3.1.2 Fabrication Technology
3.2 Characteristics of EBWD Materials
3.2.1 Burning Loss of Composition During EBWD Process
3.2.2 Characteristic Microstructure and Formation Mechanism
3.2.3 Anisotropy of Tensile Properties of EBWD Deposit
3.3 Mechanical Properties Control of Titanium Alloy Fabricated by EBWD
3.3.1 Composition Control—Relationship Between Composition and Properties of Ti–6Al–4V Deposit
3.3.2 Deposition Process Control—Relationship Between Deposition Processes, Microstructure and Mechanical Properties
3.3.3 Heat Treatment Control—Relationship Between Microstructure and Mechanical Properties
3.4 Damage and Fracture Mode in Tensile Tests
3.5 Several Feeding Wires and Mechanical Properties of Their Deposits
3.5.1 TC4EM Alloy Wire and Mechanical Properties of Its Deposit
3.5.2 TC4EH Alloy Wire and Mechanical Properties of Its Deposit
3.5.3 A-100 Steel Wire and Mechanical Properties of Its Deposit
References
4 Fundamentals of Electron Beam Wire Deposition Technology
4.1 Research on the Behavior of the Molten Pool During the EBWD Process
4.1.1 Numerical Simulation of the EBWD Process
4.1.2 Temperature Field Characteristics of the Molten Pool Under the Wire-Free Technology
4.1.3 Impact of Wire Deposition on the Temperature Field of the Molten Pool
4.1.4 Flow Field Distribution of the Molten Pool Under the Wire-Free Technology
4.1.5 Impact of Wire Deposition on the Flow Field of the Molten Pool
4.2 Fundamentals of the EBWD Technology
4.2.1 Data Processing
4.2.2 Prototyping Process Control
4.3 Typical Defects and Their Control
4.3.1 Types of Defects
4.3.2 Defect Control Methods
4.4 Deformation Control
4.4.1 Principle of Deformation
4.4.2 Methods for Controlling Deformation
4.4.3 Deformation Prediction
4.4.4 Partitioned and Fractal Machining
References
5 Non-destructive Inspection of EBWD-Fabricated Parts
5.1 Ultrasonic Inspection Technology for EBWD-Fabricated TC4 Titanium Alloy
5.1.1 Technical Solutions to Non-Destructive Inspection of TC4 Titanium Alloy Fabricated by EBWD
5.1.2 Acoustic Characteristics and Defect Characteristics of TC4 Titanium Alloy Fabricated by EBWD
5.1.3 Comparison of the Contrast Deposit and the Forged TC4 Deposit in Different Prototyping Technologies
5.1.4 Comparison of Inspection Sensitivity of Different Non-Destructive Inspection Methods for EBWD
5.1.5 Inspection of Actual Parts Fabricated by EBWD
5.2 Non-Destructive Inspection Method and Defect Determination of A-100 Steel Fabricated by EBWD
5.2.1 Research on the Ultrasonic Inspection of A-100 Steel Fabricated by EBWD
5.2.2 Research on the Magnetic Particle Testing of EBWD-Fabricated A-100 Steel
5.2.3 X-Ray Inspection of A-100 Steel Fabricated by EBWD
5.2.4 Ultrasonic Automatic Scanning and Evaluation Technology for Typical Parts Fabricated by EBWD
6 Fundamentals of EBWD Manufacturing of TC18 Titanium Alloy
6.1 Typical Microstructure Characteristics of TC18 Titanium Alloy Fabricated by EBWD
6.1.1 Microstructure Characteristics of Deposited State
6.1.2 Characteristics of the Heat-Treated Microstructure
6.2 Properties Control of TC18 Titanium Alloy Fabricated by EBWD
6.3 Test of Typical Mechanical Properties of TC18 Standard Parts Fabricated by EBWD
6.3.1 Static Property
6.3.2 High Cycle Fatigue Property
6.3.3 Corrosion Fatigue Property
6.4 Static and Fatigue Tests on Typical Element Parts of EBWD-Fabricated TC18
6.4.1 Experimental Design
6.4.2 Static Test Results of Typical Element Parts
6.4.3 Results of Fatigue Test
Reference
7 Fundamentals of Electron Beam Wire Deposition Technology for A-100 Steel
7.1 Microstructure Characteristics of A-100 Material Fabricated by EBWD
7.1.1 Microstructure Analysis
7.1.2 Microstructure Evolution During Heat Treatment
7.1.3 Influence of Pre-heat Treatment Parameters on the Structure
7.2 Properties Control Methods of A-100 Fabricated by EBWD
7.2.1 Static Property
7.2.2 Fracture Toughness
7.3 Typical Defects and Control Methods of A-100 Material Fabricated by EBWD
7.3.1 Metallographic Inspection
7.3.2 Correlation Between Discontinuity and Inspection Signals
7.3.3 Correlation Between Internal Structure and Acoustic Parameters
7.4 Static Property of Typical A-100 Components Fabricated by EBWD
7.4.1 Lug Specimen of Axial Load
7.4.2 Lug Specimen of Lateral Load
7.4.3 Constraint Method
7.4.4 Test Load
7.4.5 Test Equipment
7.4.6 Test Installation
7.4.7 Test Results
References
8 Fundamentals of Electron Beam Wire Deposition Hybrid Prototyping Technology
8.1 Microstructure Characteristics of TC4-DT Titanium Alloy Fabricated by Electron Beam Wire Deposition Hybrid Prototyping
8.1.1 Microstructure Characteristics of the Forging Matrix Zone
8.1.2 Microstructure Characteristics of the Transition Zone
8.1.3 Microstructure Characteristics of the Wire Deposition Zone
8.2 Characteristics of Mechanical Properties
8.2.1 Tensile Properties at Room Temperature
8.2.2 Impact Property at Room Temperature
8.3 Defect Control of Forging—EBWD Structures
8.4 Batch Stability of the Mechanical Properties of Electron Beam Wire Deposition Hybrid Prototyping
8.4.1 Tensile Properties at Room Temperature
8.4.2 Fracture Toughness
8.5 Research on the Mechanical Properties of Hybrid-Fabricated Titanium Alloy Components
8.5.1 Static Property
8.5.2 Fatigue Property
References