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Surface Engineering - Wear Resistance Specialists

Wear Resistance Specialists

An Intelligent Approach
To Wear Solutions

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  • Hard Facing Wires and Rods
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You are here: Home / Processes / Welded Overlay Processes / Laser Hardfacing

Laser Hardfacing

Laser Cladding is a weld build-up process, and a complementary coating technology to thermal spray. It is increasingly used instead of PTA (Plasma Transferred Arc) welding and easily outperforms conventional welding methods like TIG (Tungsten Inert Gas) for advanced weld repair applications.

In laser cladding, the laser beam is focused on the work piece with a selected spot size. The powder coating material is carried by an inert gas through a powder nozzle into the melt pool. The laser optics and powder nozzle are moved across the work piece surface to deposit single tracks, complete layers or even high-volume build-ups.

Key characteristics

  • Perfect metallurgically-bonded and fully dense coatings
  • Minimal heat affected zone and low dilution between the substrate and filler material, resulting in functional coatings that perform at reduced thickness. Fewer layers are required for equivalent performance.
  • Fine, homogeneous microstructure resulting from the rapid solidification rate, that promotes wear resistance of carbide coatings.
  • Edge geometries can be coated and built-up with welded deposits.
  • Near net-shape weld build-up requires little finishing effort.
  • Extended weldability of sensitive materials like carbon-rich steels or nickel-based superalloys that are difficult or even impossible to weld using conventional welding processes.
  • Post-weld heat treatment is often eliminated as the small heat affected zone minimizes component stress.
  • Excellent process stability and reproducibility because it is numerical controlled welding process.

Typical applications

  • Dimensional restoration
  • Wear and corrosion protection
  • Laser additive manufacturing
Surface Engineering - Wear Resistance Specialists

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MENU
  • Home
  • Wear Modes
    • Abrasion
    • Erosion
    • Adhesion
    • Surface Fatigue
  • Consumables
    • Product Forms
    • Diamond EnhancedKRYPTONITE
    • Nickel Alloys SPECIALLOY
    • Cobalt Alloys PRIME
    • Alloy + Tungsten Carbide CARBORIDE
    • Carbide HVOF Powders VELOCITY
    • Tungsten Carbide
    • Tungsten Powders
    • Tungsten Rods
    • Iron Based Products
      • Ferro-Carboride AA Series
      • Hardfaced Wear Plate & Pipe
    • Thermal Spray Consumables
  • Processes
    • Welded Overlay Processes
      • MIG & Submerged Arc Hardfacing
      • TIG & Oxy-Acetylene Hardfacing
      • Laser Hardfacing
      • Plasma Transfer Arc (PTA) Hardfacing
    • Spray Overlay Processes
      • HVOF Spray
      • Plasma Spray
      • Twin Wire Arc Spray (TWAS)
      • Flame Spray
      • Manual Torch Powder Welding
    • Furnace Overlay Processes
      • Infiltration
  • Equipment
    • SE PTA 350 – PTA System
    • SE TW 400 – Twin Wire Arc Spray System
    • SE-JET 5000 – HP-HVOF Spray System
    • SP1100DP TAC System
    • Manual / Puddle Spray Torch
  • Resources
    • Hardness Conversion Chart
    • Coefficient of Thermal Expansion
    • Powder Mesh Size Comparator
    • Particle Size Distribution Chart
  • About Us
  • Contact