WAAM vs. DED vs. PBF – The big technology comparison
Which process is suitable for which application? A detailed technical and economic comparison.
Read PDFDED-Arc/M (WAAM)
Arc-based Directed Energy Deposition / WAAM
DED process using an electric arc to melt metal wire. WAAM (Wire Arc Additive Manufacturing) is the most widely known and commercially important variant.
Operating Principle & Process Flow
Operating Principle: A standard welding process (MIG/MAG, TIG, CMT, Plasma) is automated on robotic kinematics to build up a part bead by bead.
Process Flow: Arc ignition between electrode/wire and substrate → Wire melts off → Motion system (robot) shapes the part.
Technical Specifications
- Energy Source: Electric arc (plasma, MIG, TIG, CMT).
- Feedstock / Material Feed: Metal wire.
- Typical Part Size: Medium to enormous (theoretically unlimited, often several metres long).
- Build Rate: Very high (typically 1–10 kg/h, sometimes more).
- Accuracy: Low (±1–2 mm).
- Surface Quality: Very rough (pronounced weld bead structure).
Applications & Materials
Typical Materials: Steels, aluminium, titanium, copper and nickel alloys.
Typical Applications: Ship propellers, bridge components, large tools, excavator bucket repairs.
Industries: Shipbuilding, civil engineering, heavy machinery, oil & gas.
This content was created in whole or in part with the assistance of artificial intelligence.