Injection molding is the process of shaping plastic resins into a specific part by forcing melted plastic in to a heated mold cavity. Once the plastic has cooled and solidified, the part can be ejected. Products manufactured today are greatly improved through the use of various plastic components.
Injection molding is used in both mass-production and prototyping. Automobiles, household items, furniture, toys, tools, and medical devices are some of the products that have been improved through the use of plastic injection molded parts.
The Injection Molding Process is composed of several stages: Clamping, Injection, Dwelling, Cooling, Mold Opening, Ejection.
The advantages of injection molding are as follows:
-
High production rates -
High tolerances are acceptable;
i.e. produced pieces have low error tolerances
-
Wide range of materials can be used
-
Low labor costs
-
Minimal scrap losses
-
Little need to finish parts after molding
