Composite Technology

Name: Composite Technology | Prepregs and Monolithic Part Fabrication Technologies
Brand: Hanser Publications
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Prepregs and Monolithic Part Fabrication Technologies

Hauke Lengsfeld Javier Lacalle Thomas Neumeyer Volker Altstädt(Author)

Hanser Publications (Publisher)

2nd Edition

Published on 14. June 2021

267 pages

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978-1-56990-826-6 (ISBN)

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Intro
Contents
Preface to the Second Edition
Acknowledgments
The Authors
Abbreviations and Important Terms
1 Introduction
Felipe Wolff-Fabris and Hauke Lengsfeld
1.1 Materials
1.2 Continuous Fiber Reinforced Plastics
1.2.1 Property Profile
1.2.2 Manufacturing
1.2.3 Applications
1.3 References
2 Prepregs and Their Precursors
Felipe Wolff-Fabris, Hauke Lengsfeld, and Johannes Krämer
2.1 Structure and Preparation
2.2 Matrix Systems
2.3 Fibers and Textiles
2.4 Prepreg Systems
2.4.1 2.4.1 Thermoset Prepregs
2.4.2 Thermoplastic Prepregs
2.5 References
2.6 Additional Information
3 Prepreg Technology
Hauke Lengsfeld and Mike Turner
3.1 Historical Background
3.2 Introduction: Manufacturing Methods
3.2.1 Design of a Prepreg Production Line
3.2.2 Thermoset Prepreg Manufacturing Methods
3.2.2.1 Hot Melt Processes
3.2.2.2 Solvent Coating/Solvent Dip Method for Thermoset Prepregs
3.2.3 Thermoplastic Prepreg Manufacturing Methods
3.2.3.1 Powder Coating Process
3.2.3.2 Extrusion Process
3.2.3.3 Solvent Coating/Solvent Dip Method for Thermoplastic Prepregs
3.2.4 Prepreg Variations
3.2.4.1 Slit Tape
3.2.4.2 Towpregs
3.2.5 Effect of Manufacturing Parameters
3.2.5.1 Matrix Content
3.2.5.2 Level of Impregnation
3.2.5.3 Tack (Tackiness)
3.3 References
4 Prepregs: Processing Technology
Hauke Lengsfeld, Javier Lacalle, and Thomas Neumeyer
4.1 Introduction
4.2 Cutting of Thermoset Prepregs
4.2.1 Manual Cutting
4.2.2 Automated Cutting
4.3 Hand Lay-up of Thermoset Prepregs
4.4 Automated Lay-up Technologies: Automated Tape Laying (ATL) and Automated Fiber Placement (AFP)
4.4.1 Introduction
4.4.1.1 Goal of Automated Lay-up Processes
4.4.1.2 Principle Process Steps of Automated Lay-up Technologies
4.4.1.3 Prepregs for Automated Lay-up Processes
4.4.1.4 Machine Architecture
4.4.2 Automatic Tape Laying (ATL)
4.4.2.1 Introduction
4.4.2.2 Thermoset Prepreg Materials for ATL
4.4.2.3 General Principle of ATL Processes
4.4.2.4 ATL Technology and Major Subsystems
4.4.2.5 Selection of Machine Configuration for ATL Processes
4.4.3 Automatic Fiber Placement (AFP)
4.4.3.1 Introduction
4.4.3.2 Prepreg Materials for AFP
4.4.3.3 General Principle of AFP Processes
4.4.3.4 AFP Technology and Configuration
4.4.3.5 Criteria to Select an AFP Configuration
4.4.4 Productivity and Cost Effectiveness of Lay-up Processes
4.4.4.1 Lay-up and Floor-to-Floor Productivity
4.4.4.2 Characterization of the Machine Performance
4.4.4.3 Cost Effectiveness of Automated Lay-up Processes
4.4.5 Production of Molded Parts on the Basis of Thermoplastic UD-Tapes
4.4.5.1 2D Lay-ups Based on UD Tapes as Semi-Finished Products
4.4.5.2 Process Technologies for the Production of Lay-ups Based on UD Tapes
4.5 Pultrusion
4.6 Hot Drape Forming
4.7 Same-Qualified-Resin-Transfer-Molding Processes (SQRTM)
4.8 References
4.9 Additional Information
5 Curing and Consolidation Technologies
Felipe Wolff-Fabris, Hauke Lengsfeld, and Thomas Neumeyer
5.1 Fundamentals of the Curing Cycle
5.2 Autoclave Processing
5.3 Oven Curing
5.4 QuickstepTM Technology
5.5 Press Molding/Forming Processes
5.5.1 Press Molding Processes for the Production of Thermoset Components
5.5.2 Press Molding Processes for the Production of Thermoplastic Components
5.5.2.1 Pre-Consolidation Processes
5.5.2.2 Thermoforming of Consolidated Tape Layers
5.5.2.3 Profile Production from Thermoplastic UD Tapes
5.6 Induction Processes
5.7 Microwave Curing
5.8 Electron Beam Curing
5.9 References
6 Tooling Technology
Hauke Lengsfeld and Hilmar Apmann
6.1 Requirements
6.2 Tooling Materials
6.2.1 Metals
6.2.2 Fiber Composite Materials GFRP/CFRP
6.2.3 Other Materials
6.3 Manufacture of Tools
6.3.1 Direct Manufacturing of Forming Tools
6.3.2 Indirect Manufacturing of Forming Tools
6.4 Tooling Concepts and Examples
6.4.1 Hot Forming Tools
6.4.2 Curing Molds
6.4.2.1 Open Mold Curing Tools
6.4.2.2 Closed Mold Curing Tools
6.4.3 Release Agents and Cleaning
6.5 Additional Information
7 Testing of Prepregs
Johannes Krämer and Hauke Lengsfeld
7.1 Characterization of the Unprocessed Prepreg
7.1.1 Prepreg Areal Weight, Resin Content, and Fiber Areal Weight
7.1.2 Resin Flow
7.1.3 Tack
7.1.4 Drapability
7.1.5 Volatiles
7.1.6 Viscosity
7.1.7 Water Pickup Test (WPU Test)
7.1.8 Microscopy Cut Edge Test
7.1.9 Tensile Test on Thermoplastic UD Tapes (Single-Ply Test)
7.2 Characterization of the Cured/Processed Prepreg
7.2.1 Fiber Volume Content
7.2.2 Determination of Glass Transition Temperature
7.2.3 Cured Ply Thickness (CPT)
7.3 References
8 Design and Production
Hauke Lengsfeld
8.1 Design Concepts
8.1.1 Positive/Negative Design
8.1.2 Integral/Differential Design
8.1.3 Open Mold Concepts
8.2 Determining Factors and Interactions
8.2.1 Determining Factors during Component Manufacturing
8.2.2 Interrelations during Component Manufacturing
8.3 References
9 Conclusion
Index
Leere Seite

-Prepregs and Their Precursors -Prepreg Technology -Prepregs: Processing Technology -Curing Technologies -Tooling Technology -Testing of Prepregs -Design and Production -Thermoplastic Prepregs

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