Specialized Molding Techniques

Specialized Molding Techniques
اسم المؤلف
Hans-Peter Heim, H. Potente
2 أكتوبر 2019

Specialized Molding Techniques
Edited by
Hans-Peter Heim
H. Potente
Table of Contents
Preface v
Helmut Potente and Hans-Peter Heim
One-shot Manufacturing: What is Possible with New Molding Technologies 1
James F. Stevenson
Chapter 1: Gas Assisted Injection Molding 15
Gas Assist Injection Molding. The North American Legacy 15
Jack Avery
Flow Directions in the Gas Assisted Injection Molding Technology 27
Young Soo Soh and Chan Hong Chung
Gas-assisted Injection Molding: Influence of Processing Conditions and
Material Properties 35
Kurt W Koelling and Ronald C Kaminski
Cover Part as an Application Example for Gas-assisted Injection Molded Parts 43
Michael Hansen
Molded Part Design for the Gas Injection Technique 51
H. Potente and H.-P. Heim
Design Optimization of Gas Channels for an Air Cleaner Assembly Using
CAE Simulations 57
D.M. Gao, A. Garcia-Rejon, G. Salloum and D. Baylis
The Occurrence of Fiber Exposure in Gas Assist Injection Molded Nylon
Composites 65
Shih-Jung Liu and Jer-Haur Chang
Saving Costs and Time by Means of Gas-assisted Powder Injection Molding 73
Christian Hopmann, Walter Michaeli
Gas-assisted Reaction Injection Molding (GRIM): Application of the Gas
Injection Technology to the Manufacturing of Hollow Polyurethane Parts 79
I. Kleba, E. Haberstroh
Chapter 2: Thin Wall Molding 89
Thin Wall Processing of Engineering Resins: Issues and Answers 89
Larry Cosmaii Table of Contents
Effects of Processing Conditions and Material Models on the Injection
Pressure and Flow Length in Thinwall Parts 99
A. J. Poslinski
10 Common Pitfalls in Thin-Wall Plastic Part Design 107
Timothy A. Palmer
Flow Instabilities in Thin-wall Injection Molding of Thermoplastic Polyurethane 113
Christian D. Smialek, Christopher L. Simpson
Pressure Loss in Thin Wall Moldings 121
John W. Bozzelli, Jim Cardinal, and Bill Fierens
Integrating Thin Wall Molder’s Needs into Polymer Manufacturing 127
W. G. Todd, H. K. Williams, D. L. Wise
Thinning Injection Molded Computer Walls 133
Lee Hornberger and Ken Lown
Chapter 3: Molding Micro Parts and Micro Structures 143
Transcription of Small Surface Structures in Injection Molding – an Experimental
Study 143
Uffe R. Arlø, Erik M. Kjær
Injection Molding of Sub- m Grating Optical Elements 149
R. Wimberger-Friedl
Process Analysis and Injection Molding of Microstructures 157
Alrun Spennemann and Walter Michaeli
Simualtion of the Micro Injection Molding Process 163
Oliver Kemmann, Lutz Weber, Cécile Jeggy, Olivier Magotte, and
François Dupret
Chapter 4: Manufacturing of Composites 171
Melt Compression Molding (MCM) a One-shot Process for In-mold Lamination
and Compression Molding by Melt Strip Deposition 171
Georg H. Kuhlmann
In-mold Lamination Back Compression Molding 187
Thomas Huber
Analysis and Characterization of Flow Channels during Manufacturing of
Composites by Resin Transfer Molding 193
R. V. Mohan, K. K. Tamma, S. Bickerton, S. G. Advani and D. R. Shires
Optimization of Channel Design in VARTM Processing 209
Roopesh Mathur, Suresh G. Advani and Bruce K. Fink
µTable of Contents iii
Injection Compression Molding. A Low Pressure Process for Manufacturing
Textile-Covered Mouldings 215
Carsten Brockmann, Walter Michaeli
Kurz-Hastings Inmold Decoration 223
Roy Bomberger
Chapter 5: Improving Material Properties 229
High Impact Strength Reinforced Polyester Engineering Resins for Automotive
Applications 229
Mengshi Lu, Kevin Manning, Suzanne Nelsen, and Steve Leyrer
Control of Internal Stresses in Injection Molded Parts Through the Use of
Vibrational Molding, “RHEOMOLDINGSM”, Technology 237
Akihisa Kikuchi, Marc Galop, Harold L. Brown, and Alexander Bubel
Experimental Determination of Optimized Vibration-assisted Injection Molding
Processing Parameters for Atactic Polystyrene 245
Alan M. Tom, Akihisa Kikuchi, and John P. Coulter
Vibrated Gas Assist Molding: Its Benefits in Injection Molding 253
J.P. Ibar
Chapter 6: Mold Making and Plasticisation 259
Advances in Stack Molding Technology 259
Vincent Travaglini and Henry Rozema
Advanced Valve Gate Technology for Use in Specialty Injection Molding 267
John Blundy, David Reitan, and Jack Steele
In-mold Labeling for High Speed, Thin Wall Injection Molding 273
Gary Fong
Advances in Fusible Core Technique 281
E. Schmachtenberg and O. Schröder
Processing Glass-filled Polyethylene on a Twin-screw Injection Molding
Extruder 287
David Bigio, Rajath Mudalamane, Yue Huang and Saeid Zerafati
Injection Molding by Direct Compounding 295
Bernd Klotz
Improvement of the Molded Part Quality: Optimization of the Plastification Unit 301
S. Boelinger and W. Michaeliiv Table of Contents
Non-return Valve with Distributive and Dispersive Mixing Capability 307
Chris Rauwendaal
Index 313
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