Injection Molding – 3 Easy Tips for Your Invention Prototype

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injection molding
Rapid Injection Molding

Injection molding is one of the most widely used and accessible processes for manufacturing products. This manufacturing process produces plastic injection parts from both thermoplastic and thermosetting plastic materials.

Having a grasp on the injection molding process can really help improve the efficiency of production and the quality of your product prototype & invention.

3 Quick and Easy Injection Molding Tips

1. Add a Draft Angle

A simple way to understand what we mean by incorporating a draft angle is to think about using ice trays when making ice. Each individual cube chamber in the tray is tapered to allow for an easy exit process. This tapper eliminates the need to try and pry the cube out of the tray. The draft angle in your injection molded product design serves the same exact purpose. A couple degrees of taper makes a world of a difference when trying to take apart the mold. The surface of the part will have a higher chance of remaining undamaged, and the injection molding process moves much more efficiently.

2. Be Familiar With Your Materials

Material selection is very important to consider when designing a piece. The materials you use can effect shrinkage, cooling time, flexibility and much more. Different materials can have different wall thicknesses or can require different degrees of a draft angle. This is why it is important to keep in consideration what materials you’ll be using.

2. Built-in Texture

Instead of going through the trouble of adding a second finishing process to create texture on your product, you can incorporate a finish on the mold itself. By etching the mold to create a finish, you gain better control and uniformity over the look and feel of that part. Incorporating two processes into one saves time and money.

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