Contents 4.1 Machine Parameters 4. 1. 2 Presser Foot Pressure 223 4.2 Stitching Pattern 224 5 Quality Secured Preforming 225 5. 1 Macro Preform Quality 5.2 Micro Preform Quality 5.3 Fiber Disturbance at seams 226 6 Liquid Composite Molding Process for Net-Shape Preforms 227 6. 1 Preform LCM Process Chain 2 Thermal Behavior of Seam in FrPc 8 Conclusions 9 Acknowledgements 10 References Chapter 13 Deconsolidation and Reconsolidation of Thermoplastic Composites During Processing 233 233 2 Experimental Observations 2. 1 Void growth 235 2.2Mi of Voids 2.3 Squeezed Flow of Resin During Reconsolidation 237 Mechanistic Model of the Void Growth 3. 1 Discussion of the Mechanism 38 3.2 Void-Growth Model 3.3 Theoretical Predictic 244 Thermal/Mechanistic Models of Migration of Voids 246 4.2 Thermal Analysis 246 4.3 Void Closure ueezed Creep Flow of Resin 253 Chapter 14 Long Fiber-Reinforced Thermoplastic Composites in Automotive Applications 255 55 Long Glass Fiber-Reinforced Poly with Mineral fillers 3 Long Fiber-Reinforced Polyamide 66 with MinimizedContents xi 4.1 Machine Parameters 4.1.1 Thread Tension 4.1.2 Presser Foot Pressure 4.2 Stitching Pattern 5 Quality Secured Preforming 5.1 Macro Preform Quality 5.2 Micro Preform Quality 5.3 Fiber Disturbance at Seams 6 Liquid Composite Molding Process for Net-Shape Preforms 6.1 Preform LCM Process Chain 6.2 Thermal Behavior of Seam in FRPC 7 Quality Management 8 Conclusions 9 Acknowledgements 10 References Chapter 13 Deconsolidation and Reconsolidation of Thermoplastic Composites During Processing 233 1 Introduction 2 Experimental Observations 2.1 Void Growth 2.2 Migration of Voids 2.3 Squeezed Flow of Resin During Reconsolidation 3 Mechanistic Model of the Void Growth 3.1 Discussion of the Mechanism 3.2 Void-Growth Model 3.3 Theoretical Predictions 4 Thermalh4echanistic Models of Migration of Voids 4.1 Discussion of Mechanisms 4.2 Thermal Analysis 4.3 Void Closure 4.4 Squeezed Creep Flow of Resin 5 Conclusions 6 Acknowledgement 7 References Chapter 14 Long Fiber-Reinforced Thermoplastic Composites in Automotive Applications 1 Introduction 2 Long Glass Fiber-Reinforced Polypropylene with Mineral Fillers 3 Long Fiber-Reinforced Polyamide 66 with Minimized Water Absorption 259