Insert method
Another part is inserted into the mold to get the final shape of the part.
Using a different material from that of the mold to improve abrasion resistance or make temperature control easier.
It is difficult to directly machine a mold when complicated shapes or multiple shapes are aligned, whereas attaching an insert as a separate part makes the process easier.
It is possible to change the material of the part that is subject to damage due to repeated molding with a special material or replace only the damaged part.
An insert attached to the cavity side is called a cavity insert. An insert that is attached to the core side is called a core insert.
