If you’re working on a project that requires both metal and plastic components, then you’ll want to consider using insert molding to combine them into a single, solid unit. This process enables you to add functionality and strength to your product while reducing assembly and labor costs. In addition to this cost-saving measure, insert molding also helps you produce smaller, thinner parts and more intricate designs than would be possible otherwise.

Insert molding is a manufacturing process that involves the injection molding of plastic over a preformed, non-plastic component or “insert.” The inserted piece can be a variety of materials, including metal and ceramic. Inserts are often loaded into the mold as a separate step, although they can also be added during the injection molding process itself. The two parts are then molded together using chemical or mechanical bonding. This process is commonly used to manufacture handles for tools like power drills and screwdrivers.

Metal inserts can add durability, tensile strength, and weight reduction to a plastic part. These features can be particularly important when utilizing a plastic in a high-stress application such as an automotive component or surgical tool. Incorporating metal in a plastic part can also help prevent wear and tear by increasing the amount of resistance the fastener will encounter during use.

Another benefit of insert molding is that it eliminates the need for post-molding assembly and enables you to reduce the size of your product by eliminating the need for connectors and fasteners. Adding the metal inserts during the injection molding process also reduces motion waste, increases efficiency, and minimizes the need for labor or special assembly equipment.

Injection molding can be used to incorporate inserts into a variety of parts, such as dash panels, electric sockets and wires, dials, remote control coverings, handles, scissor grips, and many other devices and components. The inserts can be embedded into the plastic to create strain reliefs, waterproofing, and electrical contact points. The possibilities are almost endless for insert molding and the potential uses of metals in plastic parts.

The type of insert used in an insert molded part is highly dependent on the final product and the intended application of the part. Regardless of the type of insert, it must be compatible with the material used in the plastic and have the ability to withstand the forces of the injection molding process.

Whether you’re looking to add an insert to a finished product or you’re interested in learning more about how insert molding works, we recommend consulting with a reputable firm that can assist you with your project. Crescent Industries is a full-service plastics manufacturer with experience handling a wide range of insert molding projects. We can provide everything from concept and design to production, manufacturing, and even the sourcing of inserts.

To learn more about insert molding and our services, get in touch with us today. We’re happy to answer any questions you may have and guide you through the process.

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