Laser cladding is an additive manufacturing

process in which material is fused onto

a substrate. The laser cladding process

is often used in heavy construction

industries to build a new surface

for increased functionality, as

well as repair damaged surfaces

worn down by repeated use.

Laser cladding is a process in which a metal coating is applied onto the surface of a part using a laser as the heat source. The process is often used to create a protective coating for increased functionality, as well as restore damaged or worn surfaces. Laser cladding allows extended life of equipment and machinery in which parts are exposed to corrosion, wear or impact. For example, the construction equipment industry applies this technology to their products to increase wear resistance and keep equipment in service longer.

Typically, a coating is added to a substrate using a laser such as IPG’s high power multi-mode fiber laser by melting metallic powder. Protective coatings such as tungsten carbide, nickel alloy or cobalt alloy may be applied to steel alloy or stainless steel substrates. The process produces a strong metallurgical bond with minimal dilution of the base material for enhanced corrosion, abrasion and wear resistance of metals. Significant advantages of laser cladding include:

  • Dense coatings with smooth, consistent surface finishes
  • Low dilution and minimal heat affected zone (HAZ)
  • Improved material functionality (i.e. corrosion, wear and oxidation)
  • Reduced processing time


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