Laserpinnoitus

Laserpinnoitus, also known as laser cladding or laser metal deposition, is an additive manufacturing process used to apply a coating or build up a material layer on a substrate using a laser beam. The process involves melting a feedstock material, typically in powder or wire form, with a focused laser beam. This molten material is then deposited onto the surface of a workpiece, where it solidifies and fuses with the substrate.

The laser beam provides a highly concentrated heat source, allowing for precise control over the melting and deposition process. This precision leads to a narrow heat-affected zone in the substrate, minimizing distortion and preserving its original properties. The feedstock material is usually delivered coaxially with the laser beam, ensuring efficient and controlled deposition.

Laserpinnoitus is employed for a variety of applications, including wear resistance, corrosion protection, repair of damaged components, and surface modification to impart specific functional properties. It is particularly useful for creating hard, wear-resistant surfaces on tools, molds, and machine parts. The process can be used with a wide range of metals and alloys, including steels, nickel alloys, cobalt alloys, and ceramics.

Key advantages of laserpinnoitus include high deposition rates, excellent metallurgical bonding between the coating and substrate, minimal thermal distortion, and the ability to create complex geometries. The process can also be highly automated, making it suitable for mass production. However, it requires specialized equipment and expertise.