What is the purpose of injection molding?

The purpose of injection molding is to mass produce plastic parts. This manufacturing process involves injecting molten plastic into a mold, where it cools and solidifies into the desired shape. The method is particularly advantageous for producing large quantities of identical items with high precision and repeatability.

Injection molding is widely used in various industries to create items such as containers, automotive components, and electronic housings. The efficiency of this process not only speeds up production times but also allows for minimal waste of materials, making it a cost-effective solution for manufacturing.

While the other options refer to different manufacturing processes, they do not align with the characteristics or intended use of injection molding. Cutting materials into specific shapes involves subtractive manufacturing methods, creating large structures from concrete pertains to construction techniques, and applying coatings involves surface treatment processes. Each of these serves distinct purposes which are not related to the mass production of plastic parts.