Injection molding involves using a hopper to feed plastic pellets into a hot chamber where a plunger melts the plastic and injects it into a mold that determines the final shape of the molded part. The process uses a hopper, hot chamber with a plunger, and molds to shape melted plastic into the desired form.

3. INJECTION MOLDING
1.hopper 2.hot chamber- plunger
4. mold- shape of the mold