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What is Injection Molding?

Posted on Apr 05, 2020 by Cullen Hikene

Injection Molding Interview

Injection molding (IM) is the most commonly used manufacturing process for the fabrication of plastic parts. A wide variety of products are manufactured using IM, which vary greatly in their size, complexity, and application. The injection molding process requires the use of an IM machine, raw plastic material, and a mold. The plastic is melted in the IM machine and then injected into the mold, where it cools and solidifies into the final part.

Unlike urethane or metal casting, which require significant ongoing labor inputs, the cost for injection molding is largely front-loaded. Tooling for injection molds typically runs in the five figures, with certain highly complex tools costing upward of $100k, but this higher upfront cost comes with a significant per-unit discount. The variable cost of injection molding can sometimes go below $10 per part for certain geometries and materials. As a result, it is an outstanding technology for larger-scale manufacturing. Part runs in the hundreds of thousands or millions are possible.

3Diligent offers both domestic and overseas molding operations. If you have a particular need for domestic fabrication, please specify as much in the Additional Assurances section of a Request For Quote (RFQ) via the 3Diligent.com platform.

Injection Molding Materials

3Diligent offers a range of injection molding options. Among the many materials offered include ABS, silicone, polycarbonate (PC), polyurethane (PU), polyester (HDPE, and LDPE), nylon, polypropylene (PP), and many others. If you have a specific material in mind, please specify it in the Material Notes field of the Request For Quote (RFQ) form.

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