Accurate Simulation of the Four Modes of Post-Die Extrudate Shape Distortion
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M. Gupta
Abstract
A combined flow, thermal and structural analysis is employed to simulate post-die extrudate distortion in different profile dies. All four factors which can cause extrudate distortion, namely, nonuniform exit velocity distribution, extrudate shrinkage, extrudate draw down, and deformed shape of the calibrator or sizer profile, are simulated. To analyze the effect of exit velocity variation on extrudate distortion, the parameterized geometry of a simple profile die is optimized using an extrusion die optimization software. The simulation results presented for a bi-layer profile die successfully demonstrate how gradually changing profile shape in successive calibrators/sizers can be used to simplify the die design for extrusion of complex profiles. The predicted extrudate shape and layer structure for the bi-layer die are found to accurately match with those in the extruded product.
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Articles in the same Issue
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- Editorial
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- Numerical Simulation of Tensile Residual Stresses in SWCNT-Reinforced Polymer Composites
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- Effect of Graphene, SiO2 and Zeolite Powder on the Mechanical and Scratch Properties of PP
- Mechanical, Interfacial and Thermal Properties of Silica Aerogel-Infused Flax/Epoxy Composites
- The Effect of Silica Nanofiller on the Physical and Thermal Characteristics of Rubber-Based Composites
- Accurate Simulation of the Four Modes of Post-Die Extrudate Shape Distortion
- Effects of Hydrothermal Seawater Aging on the Mechanical Properties and Water Absorption of Glass/Aramid/Epoxy Hybrid Composites
- The Effect of Top Surface Lubrication on the Friction Stir Welding of Polycarbonate Sheets
- Influence of Solid TAIC on Crosslinking LLDPE by Electron Beam Radiation
- PPS News
- Seikei-kakou abstracts
Articles in the same Issue
- Frontmatter
- Editorial
- Regular Contributed Articles
- Effects of Expanded Graphite, Aluminum Hydroxide, and Kaolin on Flame Retardancy and Smoke Suppression of Polyurethane Composites
- Numerical Simulation of Tensile Residual Stresses in SWCNT-Reinforced Polymer Composites
- Thermo-Responsive Shape Memory Behavior of Methyl Vinyl Silicone Rubber/Olefin Block Copolymer Blends via Co-Crosslinking
- Enhanced Infrared Heating of Thermoplastic Composite Sheets for Thermoforming Processes
- Effect of Graphene, SiO2 and Zeolite Powder on the Mechanical and Scratch Properties of PP
- Mechanical, Interfacial and Thermal Properties of Silica Aerogel-Infused Flax/Epoxy Composites
- The Effect of Silica Nanofiller on the Physical and Thermal Characteristics of Rubber-Based Composites
- Accurate Simulation of the Four Modes of Post-Die Extrudate Shape Distortion
- Effects of Hydrothermal Seawater Aging on the Mechanical Properties and Water Absorption of Glass/Aramid/Epoxy Hybrid Composites
- The Effect of Top Surface Lubrication on the Friction Stir Welding of Polycarbonate Sheets
- Influence of Solid TAIC on Crosslinking LLDPE by Electron Beam Radiation
- PPS News
- Seikei-kakou abstracts
