Lost-wax casting has been around for thousands of years, and after carbon-14 dating tests, the earliest known examples of the process are thought to date back to 3700 BC. They were found in treasure caves in southern Israel. Other early examples of the lost wax casting process also exist in many different countries.
Lost wax casting, also known as precision casting. Lost wax casting has long been a well-known and popular metal casting process. As such, it remains the process of choice for many, especially due to its accuracy, ability to reproduce details, repeatability and completeness. Lost wax casting is used to produce fine, intricate metal parts that are then used in a variety of industries and situations. This technique may have originated thousands of years ago, but it still plays a very important role in casting today.
Lost wax casting has many different applications in many different industries. For a long time, this technique has been used for casting jewelry and small parts, as well as sculpture. However, lost wax casting is now part of the supply chain for most industries, including the medical industry (knee and hip implants), automotive, rail and mining, aerospace and virtually every other manufacturing that requires precision metal parts method.
Which metals are used in lost wax casting? The lost wax casting process is versatile, which means that a wide variety of materials can be used to produce high-quality parts, whether they are light or strong, common or rare. Some of the materials used by lost wax casting in the casting process include: stainless steel and heat-resistant alloys, carbon steel, nickel-cobalt alloys, copper-based alloys, aluminum alloys, and more.
Lost wax casting is best for smaller, more complex parts because it offers great precision and design flexibility - you can add numbers, product IDs, logos and more to castings created using this method. Lost wax casting is also a method that generally does not require extensive secondary operations such as polishing, as the surface finish is far superior to most other forms of casting. It also results in tighter tolerances in the finished part than other processes such as sand casting, meaning post-processing and its associated costs can be greatly reduced or eliminated entirely.