About Laser Cladding

---

The process consists of using the energy of a laser beam to melt deposition powder (Ni-Cr or other material) on the part.  A weld occurs between the deposit and the base metal.

The cast pheres exhibit hardness 3000 =/- 500 HV, and they pack together to produce a dense deposit. Having the spherical shape of the deposit increases the overall strength of the carbide grain as well as the deposit.

• Cast tungsten because of it's high melting point is not affected by the energy of the laser.
• High hardness 3000 HV +/- 500
• Cast tungsten carbide are not by the lasercarb
• Low heat affected zone
• Almost total absence of porosity
• Limited cracking and deformation
• Large deposit thickness of 0.020" to 0.125" (0.5 to 3 mm)
• Metallurgical bond
• Precision, Automation, Reproducability

• Drilling components (wear band, stabilizer, drill collar....)
• Tunnel boring
• Pump ring and shaft
• Wear parts in the agri-food industry
• Paper industry
• Ceramics industry
• Foundries
• Cylinders and rollers in the steel industry

• At a given speed, the higher the power, the deeper the hardening and the harder it gets
• Higher speed at a given power means higher hardness and penetration
• Lower speed at a given speed means lower hardness and penetration
• Power stability of diode laser -> good reliability of hardness profiles
• No use of paint nor absorbing layer

• Diode Laser
• CNC controlled process gives the ability to continuously adjust the power in real time
• No absorbing layer required prior to hardening