What You Should Know About Metal Extrusion

Metal extrusion is a commonly used method of machining or fabricating metal components, though the average person may never even have heard the term before. Extrusion is a technique used to form metal into desired shapes and forms using a combination of pressure and dies that render the final product. It can be performed in either hot or cold manufacturing environments and is a low-fuel, labor-efficient way or rendering components from metals.

Because of its beneficial characteristics and simple production, extrusion has quickly risen to prominence in many industries. This trend will likely continue as efficiency in manufacturing is a current concern to the copper extrusion supplier wanting to maximize profit and improve sustainability. Keep reading to learn a few other things that you should know about the process of metal extrusion.

Extrusion Characteristics

Extrusion features characteristics that make it a beneficial process for many fields of industry. For example, extrusion allows for the creation of complicated cross-sections that are identical over the length of the extrudate. Extrusion can be performed in both hot and cold environments, though hot extrusion leads to a reduction in the amount of force needed to push the metal through the die. The cost of extrusion is low since there is little waste of materials, and the rate of production is high compared to the amount of energy used. Metals that are usually brittle can be successfully extruded without defect because the primary forces in extrusion are compression and shear. Extruded metals have pre-smoothed finishes after being pressed through the die, which means they require less post-manufacture machining.

Types of Extrusion

Metal extrusion is an umbrella term that describes many different extrusion processes. Those processes include direct extrusion, indirect extrusion, hydrostatic extrusion, horizontal extrusion, vertical extrusion, hot extrusion, cold extrusion, and impact extrusion.

Potential Extrusion Defects

While extrusion is the preferred method for creating many metal products, there are a few defects that are commonly the result of the process. Those defects include surface cracking, piping, and internal cracking. Many other potential metal defects are mitigated through extrusion, however, which makes it beneficial in many industries.

Products Made with Extrusion

A few common products that are routinely made using metal extrusion include curtain rods, window frames, and other structural shapes, tubes, pipes, rods, dowels, aluminum beverage cans, battery cases, and fire extinguishers.

Types of Metals Used in Extrusion

Metals that are well-suited for extrusion, and are therefore commonly used in the process, include aluminum, brass, copper, steel, lead, magnesium, zinc, and titanium. Though the performance of these metals within the extrusion process may differ, they can all be extruded with the right process, adequate pressure, and proper lubrication.

Metal extrusion is a manufacturing process that can create high-quality components with minimal energy consumption, reduced waste of raw materials, and a high rate of production. Because of these beneficial traits, it continues to be a commonly used way or shaping metals fin manufacturing.

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