Laser Metal Deposition – LMD

Laser Metal Deposition (LMD) is an additive manufacturing process in which a laser beam forms a melt pool on a metallic substrate, into which powder is fed. Afterwards, the powder melts to form a deposit that is fusion-bonded to the substrate. The required geometry is built up in this way, layer-by-layer. Both the laser and nozzle from which the powder is delivered are manipulated using a gantry system or robotic arm.

Examples of LMD applications include; repair of mold tool surfaces, repair of high-value parts (aero-derivative engine components and military vehicles), tipping of turbine blades with protective coatings, surfacing of oil and gas drilling components. One can choose from a wide variety of materials in powder form; including steels, base-alloys made from nickel (Ni), cobalt (Co), aluminum (Al), copper (Cu), titanium (Ti), and WC or TiC embedded in metal matrixes. Generative laser metal deposition is used in industries including aerospace, petrochemicals, automotive, and medical technology.

 

Applications

  1. Laser Repair Technology – LRT

The repair of worn components when operating any type of mechanical equipment with moving parts; repairing or rebuilding worn metal components becomes easier.

 

  1. Laser Cladding Technology – LCT

The application of cladding materials, which is the process of repairing surfaces on parts by first machining-down the worn surface and building it back-up by depositing cladding material in thin layers to restore the worn surface.

  1. Laser Freeform Manufacturing Technology – LFMT

Performing near-net-shape freeform builds when design is complicated and riddled with hidden and freeform features directly from CAD files.

 

In other words, LMD is distinguished from other additive manufacturing processes that it’s suited for repair and rehabilitation of spare parts in a cost-effective way without compromising quality.