Minimization of Warpage for Injection Molded Parts by Inverse Thermal Mold Design
-
Ch. Hopmann
Abstract
For injection molding, a controlled heat removal is important to produce dimensional accurate parts efficiently. The following article introduces a new concept called inverse thermal mold design. Using this method, a proper cooling channel system for the injection mold can be produced to achieve minimal part warpage. Based on the postulate of a homogeneous material density distribution within the plastic part to achieve homogenous shrinkage, the method calculates the local cooling demand of the part to derive the cooling channel layout of the mold.
References
Agazzi, A., Sobotka, V., Le Goff, R. and Jarny, Y., “Uniform Cooling and Part Warpage Reduction in Injection Molding Thanks to the Design of an Effective Cooling System”, Key Eng. Mater., 554–557, 1611–1618 (2013a) 10.4028/www.scientific.net/KEM.554-557.1611Search in Google Scholar
Agazzi, A., Sobotka, V., Le Goff, R. and Jarny, Y., “Optimal Cooling Design in Injection Moulding Process – A New Approach Based on Morphological Surfaces”, Appl. Therm. Eng., 52, 170–178 (2013b) 10.1016/j.applthermaleng.2012.11.019Search in Google Scholar
Agazzi, A., Sobotka, V., Le Goff, R., Garcia, D. and Jarny, Y., “A Methodology for the Design of Effective Cooling System in Injection Moulding”, Int. J. Mater. Form., 3, 13–16 (2010) 10.1007/s12289-010-0695-2Search in Google Scholar
Fassnacht, P., Kerkeling, J. and Nickel, R., “Künstlich intelligent statt manuell“, Plastverarbeiter62, 72–73 (2011)Search in Google Scholar
Mehnen, J., Michelitsch, T., Beielstein, T. and Schmitt, K., “Evolutionary Optimization of Mold Temperature Control Strategies”, Journal of Engineering Manufacture (JEM), B6657 (2004) 10.1243/0954405041167130Search in Google Scholar
Menges, G., Haberstroh, E., Michaeli, W. and Schmachtenberg, E.: Werkstoffe der Kunststoffe, Hanser, Munich, Vienna (2002) 10.3139/9783446443532Search in Google Scholar
Menges, G., Michaeli, W. and Mohren, P.: Spritzgießwerkzeuge. Auslegung, Bau, Anwendung, Hanser, Munich, Vienna (2007) 10.3139/9783446446823Search in Google Scholar
N.N.: Datasheet Durethan B 30 S 000000. Lanxess Deutschland GmbH, Cologne (2015)Search in Google Scholar
Papageorgiou, M., Leibold, M. and Buss, M.: Optimierung: Statische, dynamische, stochastische Verfahren, Springer, Berlin, Heidelberg (2012) 10.1007/978-3-540-34013-3Search in Google Scholar
Polifke, W., Kopitz, J.: Wärmeübertragung: Grundlagen, analytische und numerische Methoden, Pearson Deutschland GmbH, München (2009) 19640022Search in Google Scholar
Zabaras, N., “Chapter No. 17 Inverse Problems in Heat Transfer”, in Handbook of Numerical Heat Transfer, Minkowycz, W. J., Sparrow, E. M., Murthy, J. Y. (Eds.), John Wiley & Sons, Hoboken (2009) 10.1002/9780470172599Search in Google Scholar
© 2018, Carl Hanser Verlag, Munich
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Semi-Rigid Composite Foams of Calcium Sodium Aluminosilicate from Eggshells Embedded in Polyurethane
- Effect of Spin-Draw Rate and Stretching Ratio on Polypropylene Hollow Fiber Membrane Made by Melt-Spinning and Stretching Method
- A Novel Non-Planar Transverse Stretching Process for Micro-Porous PTFE Membranes and Resulting Characteristics
- Photo-Degradation of Polypropylene-Ascorbic Acid TiO2 Composite Films
- Melt Flow and Flexural Properties of Polypropylene Composites Reinforced with Graphene Nano-Platelets
- Effect of the Addition of ENR on Foam Properties of EVA/NR/Clay Nanocomposites
- Development of High Pressure Injection Technology for Normal Hydraulic Injection Molding Machines
- Influence of Electron Induced Reactive Processing and Secondary Rubber Phase on Spinnability of Polypropylene and Polypropylene/Rubber Blends
- Monitoring of Injection Molding Tool Corrosion and Effects of Wood Plastic Compound's Moisture on Material Properties
- Simulation of Micropelletization Mechanisms in Polymer Melt – Air Systems
- Cross-Linked Hydrophobic Starch Granules in Blends with PLA
- Numerical Predictions of Fiber Orientation for Injection Molded Rectangle Plate and Tensile Bar with Experimental Validations
- Fabrication of Polyethylene Terephthalate Microfluidic Chip Using CO2 Laser System
- Minimization of Warpage for Injection Molded Parts by Inverse Thermal Mold Design
- Influence of Titanium Dioxide Modified Expandable Graphite and Ammonium Polyphosphate on Combustion Behavior and Physicomechanical Properties of Rigid Polyurethane Foam
- Preparation, Foaming and Characterization of Poly(l-lactic acid))/Poly(d-lactic acid)-Grafted Graphite Oxide Blends
- A Simple Method of Fabricating Graphene-Polymer Conductive Films
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
Articles in the same Issue
- Contents
- Contents
- Regular Contributed Articles
- Semi-Rigid Composite Foams of Calcium Sodium Aluminosilicate from Eggshells Embedded in Polyurethane
- Effect of Spin-Draw Rate and Stretching Ratio on Polypropylene Hollow Fiber Membrane Made by Melt-Spinning and Stretching Method
- A Novel Non-Planar Transverse Stretching Process for Micro-Porous PTFE Membranes and Resulting Characteristics
- Photo-Degradation of Polypropylene-Ascorbic Acid TiO2 Composite Films
- Melt Flow and Flexural Properties of Polypropylene Composites Reinforced with Graphene Nano-Platelets
- Effect of the Addition of ENR on Foam Properties of EVA/NR/Clay Nanocomposites
- Development of High Pressure Injection Technology for Normal Hydraulic Injection Molding Machines
- Influence of Electron Induced Reactive Processing and Secondary Rubber Phase on Spinnability of Polypropylene and Polypropylene/Rubber Blends
- Monitoring of Injection Molding Tool Corrosion and Effects of Wood Plastic Compound's Moisture on Material Properties
- Simulation of Micropelletization Mechanisms in Polymer Melt – Air Systems
- Cross-Linked Hydrophobic Starch Granules in Blends with PLA
- Numerical Predictions of Fiber Orientation for Injection Molded Rectangle Plate and Tensile Bar with Experimental Validations
- Fabrication of Polyethylene Terephthalate Microfluidic Chip Using CO2 Laser System
- Minimization of Warpage for Injection Molded Parts by Inverse Thermal Mold Design
- Influence of Titanium Dioxide Modified Expandable Graphite and Ammonium Polyphosphate on Combustion Behavior and Physicomechanical Properties of Rigid Polyurethane Foam
- Preparation, Foaming and Characterization of Poly(l-lactic acid))/Poly(d-lactic acid)-Grafted Graphite Oxide Blends
- A Simple Method of Fabricating Graphene-Polymer Conductive Films
- PPS News
- PPS News
- Seikei Kakou Abstracts
- Seikei-Kakou Abstracts
