Laser Cladding With Pneumatic Powder Delivery

Laser cladding also called laser deposition involves the use of filler material to create a metallurgical bond between a metal substrate and a metal coating.

Laser cladding with pneumatic powder delivery.

3 a uniform and fine dendritic microstructure has been obtained as a result of the high cooling rates associated with laser cladding. The exposure time is short which creates only a short delay as the cooling is quick. 2 in the initial process stable cladding quality was achieved by fixing the process point of the laser powder and shielding gas and rotating the workpiece that is the cylinder head figure 4. Laser clad valve seats were adopted on the production lines of toyota s japanese plants for mass production in 1997.

1 shows a general layout of the laser surface cladding with a pneumatic powder delivery. The powder injection nozzle is associated with the beam delivery system to direct the powdered hardfacing material to the interaction zone between the beam and the substrate the process sequences are shown in fig. The filler material generally arrives in powder strip or wire form and gets introduced to the heat of the laser coaxially or laterally. Laser cladding of astm s31254 stainless steel on a plain carbon steel substrate.

Laser cladding is realized either as wire laser hot wire cladding or powder cladding. 2 a pneumatic argon powder delivery system has been found to be an effective means of blowing a mixture of alloy and carbide particles into the laser generated melt pool. Lasercladding germany provides remanufacturing solutions to worn and damaged parts by laser powder cladding. The laser beam creates a molten pool at the workpiece surface to which is simultaneously added the laser coating material wire or powder molten by the laser.

Such method was applied in the present study. The flexibility and versatility of this process are noted together with the significant process improvement obtained using a reflective shroud and shot blasted specimen. Lct offers a wide range of optics for all coherent laser cladding core systems from fiber to the fiber coupled diode as well as options for both powder or wire delivery depending on the application requirements. Reconditioning of high value parts with local damages.

The effect of the process parameters on the quality of the clad layer is discussed. Lasercladding germany provides additive manufacturing solutions by laser powder cladding on various base material as steel titanium nickel and aluminum based alloys.