SLM vs SLS Additive Manufacturing

What is the difference between SLS vs SLM? SLS atomically fuses powdered industrial materials together using a high-powered laser; SLM fuses powdered materials together by heating them until they reach a melting point. Sintering temperatures typically run at about 85% of a material’s melting point.

Is SLM the same as LPBF?

Selective laser melting (SLM), also referred to as laser powder bed fusion (LPBF) or direct metal laser melting (DMLM), is an AM technique developed to melt and fuse metallic powders via a high power-density laser.

What is SLS SLA 3D printing?

See how selective laser sintering works. SLS 3D printers use a high-powered laser to fuse small particles of polymer powder. The unfused powder supports the part during printing and eliminates the need for dedicated support structures.

What is EBM manufacturing process?

Electron beam melting (EBM) is a type of additive manufacturing for metal parts. It is often classified as a rapid manufacturing method. The technology manufactures parts by melting metal powder layer by layer with an EB in a high vacuum.

What is EBM printing?

Electron-beam additive manufacturing, or electron-beam melting (EBM) is a type of additive manufacturing, or 3D printing, for metal parts. The raw material (metal powder or wire) is placed under a vacuum and fused together from heating by an electron beam.

What is electron beam melting 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 does SLM stand for?

SLM (Service-Level Management)

What is the raw material used for SLM?

The most common powder materials used in SLM include:

Steel and iron-based alloys. Nickel-based alloys. Titanium-based alloys.

What is SLS nylon?

SLS 3D Printing Materials

The most common material for selective laser sintering is nylon, a highly capable engineering thermoplastic for both functional prototyping and end-use production. Nylon is ideal for complex assemblies and durable parts with high environmental stability.

What are the different types of powder bed fusion?

  • Selective Laser Sintering (SLS)
  • Selective Laser Melting (SLM)
  • Direct Metal Laser Sintering (DMLS)
  • Electron Beam Melting (EBM)

Who invented DMLS?

Most alloys can be used in the DMLS process but 17-4 Precipitation Hardened (PH) and 15-5 PH stainless steel are the most common. The process was invented and patented by Pierre Ciraud in the 1970’s and EOS of Germany is now the main manufacturer of DMLS technology.

Who invented Powderbed Fusion?

The powder bed or selective laser melting (SLM) technology was invented by Fraunhofer ILT in mid 1990s and is now one of the fastest growing AM technologies globally.

What does SLM stand for in additive manufacturing?

Selective laser melting (SLM) is a part of additive manufacturing where a high-power-density laser is used to melt and fuse metallic powders together. This is a fast developing process that is being implemented in both research and industry.

Which material is used in SLA process?

SLA 3D printers use light-reactive thermoset materials called “resin.” When SLA resins are exposed to certain wavelengths of light, short molecular chains join together, polymerizing monomers and oligomers into solidified rigid or flexible geometries.


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