Injection Molding involves producing parts in a large volume. It’s usually used in mass-production processes where the same part is being created over and over again.
The main advantage for using such a process is its ability to scale production on a mass amount. Once its costs are paid initially, it can be a very low and cost effective way to create parts. The more parts that are produced, the cheaper it gets too.
Another reason why injection molding is seen as a great choice is that it produces low scrap rates (scrap rate referring to an unwanted and defective part that gets thrown into the bin – scrapped!).
It is also highly repeatable. The second part that is produced from injection molding, will be highly similar to the first. So will the third, fourth, etc. A great upside to consider when you wish to be both consistent and reliable while working in high volumes.