1. Engineering Materials
Polymeric materials
Processing of plastic materials
Processing of Thermoplastic materials
Injection Molding:- A Molding process where a heat-softened plastic material is forced by a screw-drive cylinder into a relatively cool mold cavity that gives the plastic the desired shape.

2. Engineering Materials
Polymeric materials
Processing of plastic materials
Processing of Thermoplastic materials
Injection Molding:- A Molding process where a heat-softened plastic material is forced by a screw-drive cylinder into a relatively cool mold cavity that gives the plastic the desired shape.

3. Engineering Materials
Polymeric materials
Processing of plastic materials
Processing of Thermoplastic materials
Extrusion:- The forcing of softened plastic material through an orifice, producing a continuous product. Example: plastic pipe and sheet are extruded.

4. Engineering Materials
Polymeric materials
Processing of plastic materials
Processing of Thermoplastic materials
Blow molding- A method of fabricating plastics in which a hollow tube (parison) is forced into the shape of mold cavity by internal air pressure.

5. Engineering Materials
Polymeric materials
Processing of plastic materials
Processing of Thermosetting materials
Compression Molding:- A thermoset molding process in which a molding compound (which is usually heated) is first placed in a molding cavity. Then the mold is closed and heat and pressure are applied until the material is cured.

6. Engineering Materials
Polymeric materials
Processing of plastic materials
Processing of Thermosetting materials
Transfer molding:- A thermoset molding process in which a molding compound is first softened by heat in a transfer chamber and then is forced under high pressure into one or more mold cavities for final curing.

7. Engineering Materials
Polymeric materials
Processing of plastic materials
HW3
Make a clear comparison among the processes used for molding the plastic materials.