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Laser Cladding Coatings
Laser Cladding Coatings

Laser Cladding Coatings

Laser cladding is a coating process where materials are deposited, melted, and fused to the surface of a component with a laser beam. The laser cladding process can build up and create a new surface with new properties. It can also be used to repair damaged or worn surfaces by adding new material to replace that material which has been lost in service and restore a worn part to its original dimensions.

There are choices in materials which can be deposited onto a component's surface and each cladding material will have a desired property such as extremely high hardness, wear resistance, and/or corrosion resistance.  

The cladding on the surface with higher wear resistance or corrosion resistance is used to increase the usable lifetime of that clad component in harsh high wear or highly corrosive operating environments. Many clad components will have their usable life increased to double, triple or several more times the normal life of an unclad component.

How Laser Cladding Works

A powder or wire form is deposited onto the surface of a workpiece, and then a laser beam is used to melt the powder onto the substrate. The process produces a metallurgically bonded, fully 100% dense clad layer with minimal dilution of the base material for enhanced erosion, abrasion, and wear resistance in addition to high corrosion resistance.  

Advantages of Laser Cladding

There are several advantages of laser cladding over conventional weld cladding, slurry coating or flame spray coatings:

  • Can produce denser coatings with no porosity, better surface finishes, more uniform and consistent layer thicknesses, and more precise clad placement compared to thermal spray coating.
  • Laser cladding is a low heat input process, resulting in low dilution, fine microstructures, small heat affected zones (HAZ), and low distortion.
  • Does not require separate fusing operation in a furnace after the cladding has been applied to improve productivity and reduce cost and time required to perform processing.
Inquiries for this process should be directed to Craig Zimmerman, Director-Technical
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