Pattern welding is a technique used in metallurgy to create decorative and functional patterns on blades and other metal objects. This process involves forging together layers of different types of steel, which are then twisted, folded, or manipulated to form unique designs. The resulting patterns not only enhance the aesthetic appeal but also improve the strength and flexibility of the metal. Historically, pattern welding was commonly used in the production of Viking swords and other weapons. The method allowed blacksmiths to combine the properties of various steels, resulting in blades that were both beautiful and durable. Today, artisans continue to use this ancient technique to create modern knives and art pieces.