Modelling Post-molding Warping
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X.-J. Fan
Abstract
The post-molding warping of injection molded parts is strongly influenced by thermal expansion history. We show that a thermal expansion hysteresis loop occurs, so that heating and cooling curves can sometimes be different, due to microstructural changes. Following an extensive investigation of thermal expansion for a polypropylene, we propose a model to predict the specific volume change during post thermal treatments. The model predictions are in good agreement with the experimental measurements.
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© 2010, Carl Hanser Verlag, Munich
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Professor James Lindsay White 1938–2009
- Regular Contributed Articles
- Effect of Clay on Thermal, Mechanical and Gas Barrier Properties of Biodegradable Poly(lactic acid)/Poly(butylene succinate) (PLA/PBS) Nanocomposites
- Thermo-mechanical Properties of Urea-based Pattern Molding Compounds for Investment Casting
- Erosion Wear Analysis of SiC Filled Glass-Epoxy Composites using Taguchi Technique
- Production and Characterization of PP/LDPE Blend Filament Yarns under Industrial Conditions
- Modelling Post-molding Warping
- Modelling Post-molding Warping
- Appropriate Boundary Conditions in the Flow of Molten Polymers
- Multiscale Simulation of Injection Molding of Parts with Low Aspect Ratio Microfeatures
- PPS-News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
- Polímeros: Ciência e Tecnologia Abstracts
- Polímeros: Ciência e Tecnologia – Abstracts
Artikel in diesem Heft
- Contents
- Contents
- Editorial
- Professor James Lindsay White 1938–2009
- Regular Contributed Articles
- Effect of Clay on Thermal, Mechanical and Gas Barrier Properties of Biodegradable Poly(lactic acid)/Poly(butylene succinate) (PLA/PBS) Nanocomposites
- Thermo-mechanical Properties of Urea-based Pattern Molding Compounds for Investment Casting
- Erosion Wear Analysis of SiC Filled Glass-Epoxy Composites using Taguchi Technique
- Production and Characterization of PP/LDPE Blend Filament Yarns under Industrial Conditions
- Modelling Post-molding Warping
- Modelling Post-molding Warping
- Appropriate Boundary Conditions in the Flow of Molten Polymers
- Multiscale Simulation of Injection Molding of Parts with Low Aspect Ratio Microfeatures
- PPS-News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
- Polímeros: Ciência e Tecnologia Abstracts
- Polímeros: Ciência e Tecnologia – Abstracts
