Preface Numerical Multiphysics CFD Modelling of Porosity Evolution in Thermoset Prepreg Microstructures Thermoforming as Rapid Prototyping Strategy of Fishing Lures Influence of Surface Finish and Energy Director on Ultrasonic Welding Process of PAEK/Metal Hybrid Structures Interfacial Welding of Two Different Reinforced Thermoplastics via TACOMA Development of a New Production Process for Thermally Conductive Resin for Additive Manufacturing Using mSLA Process 3D-Printed Pyrography Using PLA/Wood Filaments Thermal Crystallization Kinetics of PET, RPET and PEF for Sustainable Packaging Prediction of Temperature and Moisture Concentration in Autoclave-Cured Epoxy Resin Using Physics-Informed Neural Networks Meshless Transient Thermal Modeling of Polymer Composite Curing with Exothermic Heat Generation Material Characterization and Constitutive Modeling of PMMA for the Numerical Simulation of Vacuum Forming Process Analysis of Large Deformation Characteristics and Formability of PMMA From Deposition Sequence to Mechanical Response: A Macroscale Process Simulation of Material Extrusion Bio-Composites for Additive Manufacturing Study of the Mechanical Properties Multi-Objective Optimization of Injection-Molded Components for Defect Reduction and Warpage Minimization Determination of Gelation Zone Position in Reactive Thermoplastic Pultrusion by Analysis of Heating Power Consumption Thermal Transient Modelling and Experimental Validation of Hybrid Polymer-Steel Moulds for Micro-Injection Moulding.