PBF technology. SLS. MJF. DMLS. 3D printing process.
Powder Bed Fusion (PBF) — laser/jet/electron beam fuses powder layer by layer. SLS, MJF for plastic. DMLS, EBM for metal. Industrial 3D printing standard.
Powder bed fusion
SLS: better mechanical properties, no support structures, complex geometry. FDM: cheaper, faster setup, simpler equipment.
Key principles.
Layer fusion
Powder bed. Energy source (laser, jet, EB) fuses one layer. Bed lowers, new powder, repeat.
Selective Laser Sintering
Single laser per layer. Standard for nylon prototypes and production.
Multi Jet Fusion
HP's technology. Print head deposits fusing agent, IR lamp fuses. Faster than SLS.
Direct Metal Laser Sintering
Metal powder fused by laser. Aerospace, medical, complex metals.
Electron Beam Melting
Vacuum chamber, electron beam fuses metal. Specialty for titanium.
Up to 380 × 280 × 380
Standard build size. Larger machines available.
FAQ
SLS: better mechanical properties, no support structures, complex geometry. FDM: cheaper, faster setup, simpler equipment.
PBF as-built Ra 10-20 µm. Bead blast or polish improves. CNC machine for tight tolerance.
±0.2 mm typical. ±0.05 mm with care + post-machining.
PA12 powder reuse 30-50% blend. DMLS metal reuse 70-80% blend with virgin.
Complex geometry: PBF cheaper. Simple geometry: CNC cheaper. Each suits different design.
Aerospace lightweight structures, medical implants, fixtures, low-volume production.
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