Dryform

Dryform refers to a method of creating three-dimensional objects through the use of a specialized additive manufacturing technique known as dry powder bed fusion. This process is a subset of 3D printing that utilizes a powdered material, typically metal or polymer, which is selectively fused together using a high-energy heat source, such as a laser or electron beam. Unlike traditional 3D printing methods that rely on liquid binders or melted filaments, dryform emphasizes the use of dry powder, eliminating the need for additional materials like resins or solvents.

The process begins with a thin layer of powder being spread across a build platform within a controlled chamber. A laser or electron beam then scans the surface, selectively melting or sintering the powder particles to form the desired cross-sectional shape of the object. This layer-by-layer approach continues until the entire structure is complete. The excess powder, which remains unfused, can often be recycled for subsequent prints, making dryform an efficient and cost-effective method for producing complex geometries.

Dryform is widely used in industries such as aerospace, automotive, and medical devices due to its ability to produce high-strength, intricate parts with fine details. Materials commonly used in dryform include titanium alloys, stainless steel, cobalt-chrome alloys, and certain polymers. The technique is particularly advantageous for applications requiring high precision, such as functional prototypes, tooling, and end-use components.

One of the key advantages of dryform is its ability to produce parts with excellent mechanical properties, as the fusion process creates a dense, solid structure without the need for supports. However, the process can be slower compared to other additive manufacturing techniques, and post-processing steps, such as heat treatment or machining, may be required to achieve final specifications. Despite these considerations, dryform remains a valuable technology for advanced manufacturing applications.