Additive Manufacturing and Its Types

1. Additive Manufacturing and Its Types Additive Manufacturing, often known as 3D Printing, is a technique for creating three-dimensional parts layer by layer from a polymer or metal-based substance. For decades, additive manufacturing has been used for design and prototyping, but the focus is now changing to direct fabrication of components such as medical implants, aircraft engine parts, and jewelry. Additive manufacturing is a broad term that encompasses a variety of technologies and processes. Types of Additive Manufacturing: 1. Jetting of Binders The materials fusing process in AM is unique in that it does not involve heat. The powder material is selectively deposited with a binding liquid or binder, which bonds the powder material together to produce the 3D part. The type of binder chosen is determined by the type of powder, the system being employed, or the customer application requirements. 2. Deposition of Directed Energy (DED) DED produces three-dimensional objects by melting and depositing powder- or wire-based materials using a focused thermal energy source such as a laser, electron beam, or plasma arc. Although the technique may produce metal, ceramic, and polymer parts, it is primarily utilised for metal parts and in hybrid manufacturing where the substrate bed can be moved to generate complicated designs. Because of the many energy sources and end uses, DED is also known as laser metal deposition (LMD), 3D laser cladding, or direct light fabrication. 3. Fusion of Powder Beds (PBF) Laser fused, electron beam fused, fused with agent and energy, and thermally fused are the four types of energy sources employed in PBF. The object is created by melting plastic or metal powder particles, which solidify and fuse together in a pattern. The build chamber and powder chamber, as well as a coating roller, are used in the powder bed fusion process. The coating roller

2. rolls and spreads the powder material across the build chamber to deposit a thin layer of powder to make the items. 4. Lamination of Sheets AM that creates three-dimensional things by bonding, ultrasonic welding, or brazing thin sheets of material together. Laser cutting or CNC machining are utilised to generate the final shape of the product. This AM technology creates parts with the least additive resolution or degree of detail of all the AM technologies, but at a lower cost and faster manufacturing time, making it ideal for quick prototyping using commonly available, low-cost materials. 5. Extrusion of Materials A continuous filament of thermoplastic or composite material is used to manufacture 3D items in the most popular AM technique in terms of availability for broad customer demand and quality. The material, in the form of plastic filament, was fed via an extruding nozzle, heated, and then deposited layer by layer onto the build platform. 6. Material Jetting Droplets of wax-like materials are selectively deposited on a build platform in this method. Layers of materials can be stacked on top of each other as the material cools and solidifies. Support structures are either mechanically removed or burned away after the build is completed. 7. Vat Photopolymerization An ultraviolet (UV) laser is used to cure photopolymer liquid resin in a vat layer by layer, turning it into hard plastic pieces. Stereolithography, Digital Light Processing (DLP), and Continuous Digital Light Processing are the three most popular versions of this technique (CDLP) Veero Metals Engaged in custom machined components and Metal 3D Printing Services in Automotive Industry. Metal Additive Manufacturing (DMLS) is an augmented cutting edge technology for rapid prototyping and rapid manufacturing by overcoming the design constraints,traditional m/c tools, special tools, and reducing the lead time in manufacturing cycles and raw material wastage.