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learn more about injection molding
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DEVELOPMENT |
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So you have an Idea. Now What? Assuming that your part is a good candidate for injection molding, the following is a generic sequence of events you can expect to go through before you have parts ready to use. For the generic case we are considering a one part product. Multi-component products are simply a more complex case of the same. |
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Conceptual Design This phase involves a lot of sketching to determine defining features required for part functionality. Materials are selected (perhaps more than one) and at least a sketch of the mold design is made. |
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Detailed Part Design Once a solid concept is obtained, the details must be determined. The end of this phase is marked by completion of a design package to include detailed part drawings, material specifications, and production requirements (used for mold design). A solid model in electronic format is also generally considered part of this package. |
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Analysis Considered optional by many, a process, or MoldFlow analysis should be performed for all but the most simple parts. The results of the analysis either confirm manufacturability or serve as a basis for part redesign. Results are also used for tool design. |
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Tooling Design and Fabrication Design of the tooling (mold) is often more challenging and complex than the part design. Care is taken to insure the design provides long life, proper filling, proper ejection, minimal deflection under pressure, and consistent and rapid cooling of the plastic. Once designed, the tool is fabricated. |
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Commissioning Upon completion, the mold must be commissioned for production. An injection molding process is developed and parts are inspected by the customer for approval. If parts meet the customers quality requirements, production may commence. Otherwise, the tool or process will require minor changes to satisfy requirements. |
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Production This is the final phase in which parts are produced and the mold is maintained. |
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LINKS |
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Society of the Plastics Industry
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