Laser cladding is a process which applies a metallic overlay material to primarily metallic substrates, offering properties similar to traditional welding methods such as hardness and impact resistance. It does, however, offer the benefits of substrate metallurgy effects similar to spray and fuse overlays, such as low dilution, a small heat-affected zone, and minimal heat input into the substrate.
Laser-applied overlays do not require masking of components to ensure correct geometry of treated areas, and heat treatment can mostly be avoided. Precise application of localised refurbishment and superior metallurgical properties make laser cladding the perfect solution to heat sensitive components that are exposed to harsh erosive, corrosive or abrasive environments.
Thermaspray’s laser cladding holds benefits for Original Equipment Manufacturers (OEM) and end-user clients in all industries. OEM customers benefit through the use of laser cladding that improves the wear and corrosion resistance, and impact performance of critical surfaces in the equipment they supply to a wide range of industries, thereby extending the service life and reducing the lifecycle cost of their equipment.
For end-user customers, Thermaspray's laser cladding is used to refurbish components subjected to degradation by wear, corrosion, abrasion, oxidation or cavitation, all of which result in reduced service life and increased maintenance costs. Laser cladding improves the performance and extends the service life of components and restores components to a better-than-new state.
Thermaspray’s 4kW, fiber-coupled diode laser, along with various optics ensures that Thermaspray is fully capable of meeting clients’ needs in applications ranging from shafts to valves, housings, rotors and drilling stabilizers.
Benefits of Laser Cladding:
- Full metallurgical bond to the base material
- Non-porous overlays
- Little to no thermal distortion due to exceptionally low power density at the melt pool
- Less than 5% dilution between substrate and overlay
- Overlays between 0.5 – 5mm
- Precise overlay thickness control
- High repeatability and process stability
- High deposition rates
- Greatly extended part lifespans
- Reduced maintenance downtime
- Excellent impact resistance