Laser cladding and hardening

Laser cladding


Our pioneering state of mind and mastering of hardfacing metallurgy techniques led us to develop the highly innovative Lasercarb® CNC laser cladding technology in 1990.

Laser cladding or DLD (Direct Laser Deposition) consists in focusing the energy of a laser beam to melt a powder on the surface of the part.

Laser cladding is today at the top of hardfacing and cladding solutions thanks to a perfect welding on the substrate, surpassing any other alternative technology.

The combination of a laser with a CNC means easy welding overlays on complex shapes with a high level of automation and repeatability.

Our know-how integrates Direct Energy Deposition capacities typical of additive manufacturing technologies.

Initially focused on tungsten carbide welding overlays, our laser cladding know-hows now includes a wide range of powders to address many abrasion, cavitation, corrosion problems :

  • Tungsten carbide with nickel Technolase® powders with Spherotène® spherical grains.
  • Nickel based Inconel® or Hastelloy® powders for corrosion protection or buffer layers.
  • AISI 316, 420, 430 stainless steels powders
  • Cobalt based powders Stellite®

Benefits for laser cladding and hardfacing

  • Welded overlay: Metallurgical bond, perfect welding on the substrate.
  • Defect free deposit: No porosity or cracks.
  • Very low dilution.
  • Minimal Heat Affected Zone.
  • Extremely limited deformations.
  • Precise, reproducible and fully automated process.
  • Wide range of powders
  • Deposit thickness from 0.4mm


  • Outside Diameter :
    • Length : 10m
    • Diameter : 600mm
    • Weight : 2 tonnes
  • Inner Diameter :
    • Length : 2 x 500mm
    • Diameter : 65 mm

Types of laser cladding powders

Tungsten carbide powders

Spherotene® (Spherical fused tungsten carbide) is mixed with a nickel-based powders for severe wear applications. Tungsten carbide grains are not affected by the laser, which maintain their intrinsic properties.

TechnopowdersDeposit thicknessComposition
Technolase® 40S3 mm60% WC-W2C 40% – 40HRc
Technolase® 30S3 mm60% WC-W2C 40% – 30HRc
Technolase® 30S3 mm60% WC-W2C 40% – 20HRc

Nickel based powders

TechnopowdersDeposit thicknessComposition
TP 625UnlimitedBase Nickel
TP C276UnlimitedBase Nickel

Cobalt based powders

TechnopowdersDeposit thicknessComposition
Stellite 11.5 mmBase colbalt
Stellite 63 mmBase colbalt
Stellite 123 mmBase colbalt
Stellite 21UnlimitedBase colbalt
UltimetUnlimitedBase colbalt

Iron based powders

TechnopowdersDeposit thicknessComposition
TP 316UnlimitedInox austénitique
TP 420UnlimitedInox martensitique

Lasercab® process is particularly suitable for tools or parts working in severe abrasion, erosion and corrosion conditions. Mainly used in oil and gas drilling, agriculture and food industry, bricks and tiles, foundry, dredging, mining, steel industry, waste treatment – biomass, tunneling…

Laser hardening

Carbon steels ( min. 0.22% C), tool steels, cast irons are suitable for laser hardening.

Achievable surface and core hardness are dependant on the base material. As an example, a carbon steel 42CD4 ( AISI 4140) after laser hardening will reach 54 Hrc on 0.5 mm depth

Contact us for further details !

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