Three advantages of injection molding
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1 - Low scrap rates
Relative to traditional manufacturing processes like CNC machining which cut away substantial percentages of an original plastic block or sheet, scrap rates are so low. Note: waste plastic from injection molding manufacturing typically comes consistently from four areas: the sprue, the runners, the gate locations, and any overflow material called “flashing”.
2 – Repeat-ability and Accuracy
The second part you produce is going to be practically identical to the first one. This is a wonderful characteristic when trying to produce brand consistency and part reliability in production. Plastic injection molding is such a precise method that the finished product to be very precise. In fact, accuracy is typically within 0.005 inches.
3 – Wide range of material selection
Most polymers may be used for injection molding, including all thermoplastics, some thermosets, and some elastomers. One cool benefit of plastic injection molding is that fillers can be added to components during processing, reducing the density of the liquid plastic while adding enhanced strength to the finished part. Plastic injection molding is an ideal process for industries or products where parts need to be strong. This allows product designers to choose from a vast selection of materials so they can choose exactly the right properties for the injection molded parts they need.