Molding, also spelled as "moulding" in British English, is a manufacturing process used to shape materials into specific forms or objects. There are several different types of molding processes, each tailored to different materials and product requirements. Here are some common types of molding:

1. Injection Molding: As described in the previous response, injection molding is used primarily for plastics. It involves injecting molten plastic material into a mold cavity to create a wide range of plastic products.

2. Compression Molding: Compression molding is used for materials like rubber, thermosetting plastics, and some composites. In this process, a pre-measured amount of material is placed in an open mold cavity. The mold is then closed, and heat and pressure are applied to compress and shape the material.

3. Blow Molding: Blow molding is used for producing hollow plastic or glass parts, such as bottles and containers. It involves inflating a molten thermoplastic material inside a mold cavity to create the desired shape.

4. Extrusion Molding: Extrusion is a continuous process used primarily for plastics and rubber. Material is forced through a shaped die to create products with a consistent cross-section, like pipes, hoses, and tubing.

5. Rotational Molding: Rotational molding, also known as rotomolding, is used for hollow, large, or complex parts like tanks, playground equipment, and kayaks. The material is placed in a mold, which is rotated on multiple axes while being heated. The material evenly coats the interior of the mold to form the final shape.

6. Thermoforming: Thermoforming is used for creating thin-walled plastic parts, such as food packaging and disposable cups. It involves heating a flat sheet of plastic until it becomes soft and then forming it over a mold using vacuum or pressure.

7. Transfer Molding: Similar to compression molding, transfer molding is used for materials like rubber and thermosetting plastics. It involves forcing the material into the mold cavity through channels, which connect a pot containing the material to the mold cavity.

8. Injection Blow Molding: This process combines elements of injection molding and blow molding. It is commonly used for producing small, complex plastic bottles and containers.

9. Insert Molding: In insert molding, a pre-formed component, such as a metal part, is placed into the mold cavity, and plastic is injected around it. This is often used in electronics and automotive industries to combine different materials in a single part.

10. Reaction Injection Molding (RIM): RIM is used for producing parts from thermosetting plastics. It involves mixing two or more liquid components that react to form a solid material within the mold.

11. Powder Metallurgy: This is a molding process used for metals. It involves compacting fine metal powders in a mold at high pressure and then sintering (heating without melting) them to form a solid object.

These are some of the most common types of molding processes used in manufacturing. The choice of which process to use depends on the material being molded, the complexity of the part, production volume, and other specific requirements of the project.