What Are the Benefits of Plastic Injection Molding?
Plastic injection molding is one of the best options for manufacturing a wide range of plastic components. The production method is based on injecting a heated material into a perfectly shaped mold. The mold is custom-made to give complete control over the size and shape of the final product.
Here are a few of the most pleasing qualities of plastic injection molding:
The flexibility of plastic injection molding means it is possible to create virtually any plastic component or part of the exact specifications to match the needs. It is used in many different areas, including parts for manufacturing and parts for medical devices.
This method makes it really easy to not only change the color of the individual parts, but also change the actual type of material. Also, it is possible to add filler to the liquid plastic when it is injected into the mold. The filler helps to lower the density of the plastic to give the parts greater strength and durability.
It is relatively quick method to produce parts which help to save on production costs. The speed of creating each part will vary with the complexity of the mold, but in general the time-frame for a standard part is in the region of 15 to 30 seconds per cycle pass. Also, the ability to rely on custom-made molds means there is a much lower risk of human error during the production process. This is a further step to managing costs, as well as streamlining operations.
The precise nature of the mold means the plastic injection molding process is very consistent and virtually error-proof. The accuracy level can be within 0.005 inches. However, this is based on creating the high-quality mold housing to ensure each individual piece produced is 100% accurate.
The plastic injection molding makes little to no waste throughout the production process. The mold can accept the right amount to create the desired part and any excess or leftover material can easily be ground up and reused on the next part or project.
Cheaper than alternatives
Over the long-term, the plastic injection molding method is a lot more cost-effective than alternatives like plastic machining. There is the upfront cost of creating the mold which can cost several thousand dollars. Once the mold is ready, there are minimal other costs involved in the process.
Even though this molding technique is quite versatile, it does still have its limitations and is only practical for the less sizable objects that can be placed in a purpose-built mold. This process is intended for one piece projects. Also, the different materials and designs can have an impact on the thickness of the product wall.
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