Molds are built through two main methods: standard machining and EDM. Standard machining, in its conventional form, has historically been the method of building injection molds. With technological development, CNC machining became the predominant means of making more complex injection molding with more accurate mold details in less time than traditional methods.

More complex parts are formed using more complex molds. These may have sections called slides, that move into a cavity perpendicula...


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