Directed light fabrication

Directed Light Fabrication (DLF) is a rapid fabrication process that is based on controlled deposition of molten powder particles according to computer controlled patterns. It makes fully dense, near-net-shape metal components without molds or dies, and without forming, pressing, or forging equipment. The DLF process is independent of both part shape and material. Therefore, an assortment of shapes can be made from a variety of materials with the same machine and process. Current DLF technology provides the capability to produce components from nearly any metal and from many intermetallic compounds. In short, the DLF process has the potential to reduce the cost of products made of many difficult-to-fabricate materials, and to create new products that cannot be fabricated by conventional means. This article describes the basics of DLF technology, its benefits, potential applications, and current limitations.