Practically the same as SLS but uses metal powder.

Practically the same as SLS but uses metal powder.

• A. Selective Laser Sintering (SLS)
• B. Stereolithography (SLA)
• C. Direct metal laser sintering (DMLS)
• D. Fusion deposition modelling (FDM)

Answer: (C)

Direct Metal Laser Sintering is the laser-based powder-bed fusion process that uses metal powder. It follows the same basic idea as Selective Laser Sintering: a laser scans each powder layer, fusing the particles to form a solid layer, the bed lowers, and a new layer of powder is spread until the part is built. The key difference is the material: metal powders produce metallic parts with properties like strength and heat resistance that polymers can’t match. Other options involve different materials or solidification methods—SLS typically uses polymer powder, SLA uses a resin cured by light, and FDM builds parts by extruding thermoplastic filament.

Direct Metal Laser Sintering is the laser-based powder-bed fusion process that uses metal powder. It follows the same basic idea as Selective Laser Sintering: a laser scans each powder layer, fusing the particles to form a solid layer, the bed lowers, and a new layer of powder is spread until the part is built. The key difference is the material: metal powders produce metallic parts with properties like strength and heat resistance that polymers can’t match. Other options involve different materials or solidification methods—SLS typically uses polymer powder, SLA uses a resin cured by light, and FDM builds parts by extruding thermoplastic filament.