There are many different types of forging (e.g., drop forging, roll forging, press forging, upset forging), but all require the use of a die to give the metal its final shape. Some types of forging use dies that enclose the material (closed-die forging), while other methods of forging shape the material around the die (roll forging).

Carbon steels, alloy steels, and stainless steels are frequently forged, but softer metals such as aluminum, brass, and copper can also be forged. Types of forging processes are categorized by temperature such as cold, warm, or hot forging. Forging is widely used across the automotive, aerospace, and energy industries.

Source: What Is Forging? Definition, Process, And Types, Understanding the Different Forging Processes