If you are planning a plastic injection molding project, and want to ensure excellence and timelines in your product delivery - review these following five considerations to make certain the result is exactly what you need.
1) Do 2d part drawings and 3d cad models exist?
The first question to ask yourself is this; Are you replacing an existing or similar product? Which means there may already be 2d drawings and cad models to work from.
If you do not have 2d part drawings or 3d cad models of the part, these should be provided. The 2d part drawings and 3d cad models provide detailed information on the size and complexity of the part.
This is really necessary because words can always be interpreted differently, and details can be missed. This could make for significant differences in mold design, as well as cost.
When done in this way - you can give the plastic injection molder the ability to access the part from a mold design perspective, to define parting lines, and draft angles for proper ejection and gate locations. This will protect and maintain the manufacturability of your parts.
2) What is the application for your product and its material?
It is important for your injection molder to know the end application, and usage conditions. These include variables such as temperature, chemical contact and resistance. It also includes;
- Applied stresses during use
- Color, aesthetics
- Water absorption
- Lubricity and wear resistance
Your injection molder can then help to recommend a material base properly suited for your application. This is important for the plastic injection mold design stage because different resins have different shrinkage rates, levels of corrosiveness, etc. It is not practical to change resins after the mold has been fabricated.
This also relates to the type of manufacturing environment required to manufacture the product, for example a clean room may be required.Read More