Wire Arc Additive Manufacturing WAAM
Important for large structural metal parts, especially titanium and aluminum demonstrators. Moving from demonstration to early production in aerospace and naval sectors.
Uses an electric arc (GMAW, GTAW, or plasma) to melt metal wire feedstock, building up large near-net-shape parts layer by layer. Derived from welding technology; typically deployed on robotic arms or gantry systems. Very high deposition rates but coarse resolution requires significant post-machining.
Also known as: WAAM, Wire-DED, plasma arc AM
Ti-6Al-4V, aluminum alloys (2xxx, 7xxx), mild steel, ER70S-6, Inconel 625, high-strength steel
- 01Very low feedstock cost vs powder-bed processes
- 02Very high deposition rates — 5–10× faster than DED powder for large parts
- 03Large structural parts beyond any powder-bed build volume
- 04Significant buy-to-fly improvement for titanium structural components
- 05Uses standard welding wire feedstock
- 01Very rough as-built surface — always needs post-machining
- 02Porosity and microstructure control require process development
- 03Qualification for flight-critical parts remains limited
- 04Geometric complexity limited vs powder-bed processes
- 01Large titanium aerospace structural frames and ribs
- 02Naval propeller blades and ship components
- 03Pressure vessel and pipe sections
- 04Tooling and mold bases
- 05Automotive structural components (demonstrators)
• Norsk Titanium — FAA-approved titanium structural aerospace parts• Boeing 787• WAAM3D — RoboWAAM large-format robotic systems• Cranfield University / TWI — Pioneer research• industrial licensing• Lincoln Electric / Baker Industries — Hybrid wire-arc manufacturing cells• Gefertec — arc605 and arc605 systems for steel/Ti
Growth in large aerospace structural parts where buy-to-fly improvement justifies cost. Naval sector interest growing for ship components. Titanium WAAM qualification progressing with FAA and EASA. Hybrid WAAM+machining cells becoming more common.
Promising for higher-volume metal parts post-sintering. Industrialization slower than early hype suggested. Active production deployments in automotive and industrial sectors.
Defense and maintenance-relevant technology for repair and metal deposition with low thermal input. Growing in military sustainment and selected industrial repair applications.
Growing for repair, cladding, large metal parts, and hybrid manufacturing. More adoption in defense, aerospace MRO, and energy.
Niche but well-established for titanium orthopedic implants and selected aerospace applications. Arcam (GE Additive) is the dominant supplier.
- 01Norsk Titanium Boeing 787 case studyconfidence 78%
- 02Wohlers Report 2024confidence 78%
- 03TWI WAAM technical guideconfidence 78%
Cite this page
APA
AM Roadmap. (2026). Wire Arc Additive Manufacturing WAAM. AM Roadmap (v0.4.2-fixes-deployed). Retrieved 2026-05-17, from https://amroadmap.com/technologies/metal-wire-arc-additive-manufacturing-waam
BibTeX
@misc{amroadmap_wire_arc_additive_manufacturing_waam_2026,
title = {Wire Arc Additive Manufacturing WAAM},
author = {{AM Roadmap}},
year = {2026},
url = {https://amroadmap.com/technologies/metal-wire-arc-additive-manufacturing-waam},
note = {AM Roadmap dataset v0.4.2-fixes-deployed, accessed 2026-05-17}
}Canonical URL: https://amroadmap.com/technologies/metal-wire-arc-additive-manufacturing-waam