MetalCold Spray AMTRL 6 · Emerging

Cold Spray AM

Defense and maintenance-relevant technology for repair and metal deposition with low thermal input. Growing in military sustainment and selected industrial repair applications.

Emerging

TRL 6

confidence 75%

How it works

Metal powder is accelerated to supersonic velocities (500–1,200 m/s) using a high-pressure gas jet and impacted onto a substrate. Particles deform plastically on impact and bond without reaching their melting point — hence 'cold.' The process is inherently near-room-temperature from the substrate perspective.

Also known as: kinetic deposition, supersonic particle deposition

Materials

copper, aluminum, titanium, IN625, tantalum, tungsten

Strengths

01Low heat input — no HAZ, no thermal distortion, suitable for heat-sensitive substrates
02Field-deployable systems for forward repair
03Can deposit on dissimilar materials
04Very high deposition rates for simple shapes
05No oxidation of material (particle stays solid)

Bottlenecks

01Limited geometric complexity — line-of-sight process
02Bond quality depends on particle velocity and substrate condition
03Not all materials bond effectively
04Qualification for structural applications is limited

Key Applications

01Military aircraft corrosion repair (USAF, USN depots)
02Engine component repair (compressor blade leading edges)
03Electrical conductor deposition (copper busbars)
04Corrosion-resistant coatings
05Obsolete part replacement by deposition

Key Suppliers

• Impact Innovations — Kinetics 9M series• industrial and aerospace• VRC Metal Systems — Gen III Raptor• DoD field repair focus• Centerline SST — Supersonic spray technologies• Plasma Giken — High-pressure cold spray systems

Trajectory 2025–2035

Growth in DoD sustainment applications. Several DoD programs (AFRL, ARL, ONR) actively funding cold spray qualification for depot repair. Field-portable systems under development. Key challenge: qualification frameworks for structural flight-critical repairs.

RELRelated technologies

TRL 7 · 80% confidence

Binder Jetting Metal

Promising for higher-volume metal parts post-sintering. Industrialization slower than early hype suggested. Active production deployments in automotive and industrial sectors.

TRL 7 · 82% confidence

Directed Energy Deposition DED

Growing for repair, cladding, large metal parts, and hybrid manufacturing. More adoption in defense, aerospace MRO, and energy.

TRL 8 · 85% confidence

Electron Beam Powder Bed Fusion EB-PBF

Niche but well-established for titanium orthopedic implants and selected aerospace applications. Arcam (GE Additive) is the dominant supplier.

TRL 9 · 92% confidence

Laser Powder Bed Fusion LPBF

Most mature, highest-adoption metal AM process for precision aerospace, medical, and industrial components.

SOURCES & CITATIONSMethodology →

01
ARL cold spray technology overview
confidence 75%
02
VRC Metal Systems DoD programs
confidence 75%

Cite this page

APA

AM Roadmap. (2026). Cold Spray AM. AM Roadmap (v0.4.2-fixes-deployed). Retrieved 2026-05-17, from https://amroadmap.com/technologies/metal-cold-spray-am

BibTeX

@misc{amroadmap_cold_spray_am_2026,
  title  = {Cold Spray AM},
  author = {{AM Roadmap}},
  year   = {2026},
  url    = {https://amroadmap.com/technologies/metal-cold-spray-am},
  note   = {AM Roadmap dataset v0.4.2-fixes-deployed, accessed 2026-05-17}
}

Canonical URL: https://amroadmap.com/technologies/metal-cold-spray-am