Injection molding has been around for decades. It’s in in almost every industry around the globe, but it still isn’t fully understood. There are a lot of myths about what it can do, how cheap it can be, and what happens after the process. We’re going to dispel eight common rumors we see asked frequently to cast some light on injection molding.
Myth 1: Injection Molding Can Do Any Shape Possible
We often are asked how complex a shape can be before it isn’t manufacturable. The myth is that anything can be injection molded. While injection molding is capable of many shapes, there are certainly limitations. One key element that is done in a design review is a ‘moldability check’, and your part should have a minimum target of 90%. That target allows enough flexibility to make changes and increase the moldability for a more balanced melt flow, heat exchange, as well as uniform cooling inside the injection mold as the cycle completes.
Myth 2: Injection Molding Shouldn’t Be Used for Prototypes
Plastic injection molding can be used to create many things, but not prototypes. Does that sound familiar? Plastic injection molding can absolutely be used for prototyping. You might say that 3D Printing or Additive Manufacturing has become more common for prototypes in some cases, but using a simple injection mold may be a more cost-effective and faster option depending on the situation. It will come down to how many prototypes are being made, how often changes need to be made, and the material your prototype needs to be made from.
source : https://sealectplastics.com/