Laser Cladding With Pneumatic Powder Delivery

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.

Laser cladding with pneumatic powder delivery.

Laser cladding of astm s31254 stainless steel on a plain carbon steel substrate. Laser clad valve seats were adopted on the production lines of toyota s japanese plants for mass production in 1997. 3 a uniform and fine dendritic microstructure has been obtained as a result of the high cooling rates associated with laser cladding. A process of laser cladding using argon blown powder delivery is described.

Dsmw 0014 3 tungsten carbide nickel alloy powder blend for laser cladding en 174 81 kb pdf file dsm 0218 3 cosuperalloy stellite type en 305 08 kb pdf file dsmw 0002 6 nickel based superalloy powders for laser cladding and laser additive manufacturing en. 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. Anjos s 7 research works with 166 citations and 342 reads including. The effect of the process parameters on the quality of the clad layer is discussed.

The filler material generally arrives in powder strip or wire form and gets introduced to the heat of the laser coaxially or laterally. The exposure time is short which creates only a short delay as the cooling is quick. Lasercladding germany provides additive manufacturing solutions by laser powder cladding on various base material as steel titanium nickel and aluminum based alloys. 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.

Reconditioning of high value parts with local damages. 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. Lasercladding germany provides remanufacturing solutions to worn and damaged parts by laser powder cladding. 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.

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. 1 shows a general layout of the laser surface cladding with a pneumatic powder delivery.