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Process
What is laser cladding?
In laser cladding, a coating is welded onto a workpiece with a laser beam. A weld pool is created on a workpiece surface with a precisely focused laser beam. Powdered filler metal is simultaneously injected into the weld pool to melt completely into a weld bead lying on the workpiece surface. By applying overlapping weld beads, a crack- and pore-free coating is achieved with a fine, homogeneous microstructure and a 100% density that is completely metallurgically bonded to the workpiece. Due to the low heat input and high process stability, laser cladding is a cost-effective way to extend the service life of business-critical parts with welded coatings, with layer thicknesses from 0.1 to a few millimeters.
Advantages of laser cladding
Due to the low heat input, high cooling rates and accurate process control, laser cladding offers major advantages:
- A welded coating that will not detach from the workpiece;
- Superior surface properties due to a fine, homogeneous microstructure and high-purity of the cladding;
- Minimal distortion of the workpiece;
- Minimal heat affection of the base metal so it retains its original properties;
- The ability to laser clad traditional "non-weldable" materials.
Recycling and upcycling
Laser cladding offers the ability to extend the service life of industrial parts:
- Surface enhancement of new parts;
- Repair and improvement of damaged parts.
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