High precision validation of micro injection molding process simulations

Tosello, Guido; Costa, Franco

doi:10.1016/j.jmapro.2019.10.014

Cited by 28 publications

(16 citation statements)

References 13 publications

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“…[97] For example, injection molding of commonly used calcium carbonate composite materials and injection molding of wood flour composite materials can be performed by this method. [98] In the preparation of composite materials, in order to highly disperse the fillers on the matrix resin, the traditional method requires the matrix resin and the glass fiber to be fully mixed, and the assistance of a twin-screw extruder is required to perform out-ofprocess mixing. Pellets and then the corresponding products are obtained by the molding method.…”

Section: Injection Mold and Injection Process Parametersmentioning

confidence: 99%

“…Among the physical properties, it also has the characteristics of small friction coefficient, thus exerting the lubricity of carbon composites. [121][122] In specific applications, carbon fiber composite materials can be used for bridge deck reinforcement, tunnels, and plant engineering maintenance. The basic principle of injection molding of carbon fiber composite materials is to accurately measure the two reactants, mix and collide under high pressure conditions, and then fill the mold.…”

Section: Carbon Composite Injection Moldingmentioning

confidence: 99%

“…Many types of "microinjection machines" have been developed and put into commercial uses. [141][142][143]…”

Section: Micron Injection Molding Equipment and Process Requirementsmentioning

confidence: 99%

See 2 more Smart Citations

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Fu¹,

Xu²,

Liu³

et al. 2020

ES Mater.Manuf.

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Injection molding technology has been in development for almost 150 years. Injection molding is a molding technology that melts the material with the aid of a screw and an external heating device and then injects it into a mold to form the corresponding product as the mold cools. At present, many types of materials can be used to mold products by injection molding. Many requirements and problems in the processing of different materials have also caursed the birth of many molding processes. At present, injection molding has been applied in many fields, from daily necessities that are closely related to our lives to parts and components in the aerospace field. At present, injection molding still faces the challenges of processing new materials, and the continuous improvement of the existing equipment technology is required for the continuous development of injection molding.

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Section: Injection Mold and Injection Process Parametersmentioning

confidence: 99%

Section: Carbon Composite Injection Moldingmentioning

confidence: 99%

See 1 more Smart Citation

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Fu¹,

Xu²,

Liu³

et al. 2020

ES Mater.Manuf.

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“…In the search for the optimization of the processes of plastic microinjection, simulators have been used in conjunction with data analysis to obtain an approach to the real behavior of the processes, in many cases, the manufacturing processes have been taken to the study of a specific element for which a whole system of study and behavior analysis is carried out [71]. The use of simulators in the injection processes has allowed to deepen in the analysis and study of the parameters that are involved in the processes, managing to improve the understanding and precision of the manufacturing methods, achieving better quality results [72].…”

Section: State Of the Artmentioning

confidence: 99%

Integration of CAE Modeling and Artificial Intelligence Systems to Support Manufacturing of Plastic Microparts

Rojas

Chaves

Bolivar

et al. 2019

2019 Congreso Internacional De Innovación Y Tendencias en Ingenieria (CONIITI )

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“…Regarding the discretization of the solution domain, it is well known that 3D elements are necessary for decomposing micro-components when the wall thickness to flow length ratio is no longer negligible [4][5][6]. In addition, a high fidelity calibration of injection pressure and flow length can be achieved when the feeding systems (gate, runner, sprue, and injection unit as a hot runner) are included in the simulation domain [7,8]. At the microscale, the no-slip boundary condition at the wall is no longer a valid hypothesis.…”

Section: Introductionmentioning

confidence: 99%

Experimental Validation of Injection Molding Simulations of 3D Microparts and Microstructured Components Using Virtual Design of Experiments and Multi-Scale Modeling

et al. 2020

Self Cite

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The increasing demand for micro-injection molding process technology and the corresponding micro-molded products have materialized in the need for models and simulation capabilities for the establishment of a digital twin of the manufacturing process. The opportunities enabled by the correct process simulation include the possibility of forecasting the part quality and finding optimal process conditions for a given product. The present work displays further use of micro-injection molding process simulation for the prediction of feature dimensions and its optimization and microfeature replication behavior due to geometrical boundary effects. The current work focused on the micro-injection molding of three-dimensional microparts and of single components featuring microstructures. First, two virtual a studies were performed to predict the outer diameter of a micro-ring within an accuracy of 10 µm and the flash formation on a micro-component with mass a 0.1 mg. In the second part of the study, the influence of microstructure orientation on the filling time of a microcavity design section was investigated for a component featuring micro grooves with a 15 µm nominal height. Multiscale meshing was employed to model the replication of microfeatures in a range of 17–346 µm in a Fresnel lens product, allowing the prediction of the replication behavior of a microfeature at 91% accuracy. The simulations were performed using 3D modeling and generalized Navier–Stokes equations using a single multi-scale simulation approach. The current work shows the current potential and limitations in the use of micro-injection molding process simulations for the optimization of micro 3D-part and microstructured components.

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High precision validation of micro injection molding process simulations

Cited by 28 publications

References 13 publications

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Overview of Injection Molding Technology for Processing Polymers and Their Composites

Integration of CAE Modeling and Artificial Intelligence Systems to Support Manufacturing of Plastic Microparts

Experimental Validation of Injection Molding Simulations of 3D Microparts and Microstructured Components Using Virtual Design of Experiments and Multi-Scale Modeling

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