What is SLM in 3D printing?

Selective laser melting (SLM) is a specific 3D printing technique, which utilizes high power-density laser to fully melt and fuse metallic powders to produce near net-shape parts with near full density (up to 99.9% relative density).

What is SLM used for?

Selective laser melting (SLM) is one of many proprietary names for a metal additive manufacturing (AM) technology that uses a bed of powder with a source of heat to create metal parts. Also known as direct metal laser sintering (DMLS), the ASTM standard term is powder bed fusion (PBF).

How does SLM printing work?

Similar to SLA where UV laser is used, a high-powered laser beam is used in SLM to form 3D parts. During the printing process, the laser beam melts and fuses various metallic powders together. As the laser beam hits a thin layer of the material, it selectively joins or welds the particles together.

What is the difference between DMLS and SLS?

However, the biggest difference between the two processes is the type of materials that can be used to “print” the required parts. SLS can be used with a variety of metals and non-metallic materials, whereas DMLS is designed to work solely with metals.

Is DMLS fast?

Direct metal laser sintering (DMLS) is an industrial 3D printing process that builds fully functional – rapid metal prototypes and production parts in 7 days or less. A range of metals produce final parts that can be used for end-use applications.

What is the difference between sintering and melting?

Sintering and Melting Key Takeaways – Sintering combines materials by heat and pressure, without melting involved. Melting combines particles by heating them till they liquify and combine as one material. Sintering can occur at low temperatures if enough pressure is applied.

What is EBM printing used for?

It is used to print components for aerospace, automotive, defense, petrochemical, and medical applications. Electron beam melting technology is proprietary and EBM printers require skilled technicians to run them.

What is EBM process?

Electron-beam machining (EBM) is a process where high-velocity electrons concentrated into a narrow beam that are directed towards the work piece, creating heat and vaporizing the material.

How does electron beam additive manufacturing work?

An electron beam melts welding wire onto a surface to build up an object. This is similar to the typical 3D printing process of fused deposition modeling but with metal instead of plastics. With this method, an electron-beam gun provides the energy source used for melting metallic feedstock.


Videos

Bulltech SLM 3D printer Metal printing

MADIT METAL – Selective Laser Melting (SLM) Process – Metal 3D Printing

What is Selective Laser Melting “SLM”? (3D Printing Technology)


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