What is the purpose of extrusion? a) To compress metal into a cylindrical shape. b) To melt metal and pour it into a container. c) To force metal...

he answer is (c), to force metal through a die to obtain a desired shape.

Extrusion is a metal forming process that uses a compressive force to push a metal billet through a die. The die has a specific cross-sectional shape, and the metal is forced to take on this shape as it is extruded.

Extrusion is a versatile metal forming process that can be used to produce a wide variety of shapes and sizes. It is a cost-effective process, and it can produce high-quality parts.

The other options are incorrect. Compression is a metal forming process that uses a compressive force to shape metal. However, compression does not involve forcing metal through a die. Melting metal and pouring it into a container is a casting process. Heating metal and shaping it using an embossing tool is a stamping process.

Here are some examples of products that are made using extrusion:

• Aluminum profiles
• Copper tubing
• Lead pipes
• Steel bars
• Plastic rods

Extrusion is a valuable metal forming process that is used to produce a wide variety of products.