The Diamond Laser Cladding Process
Our high-speed diamond laser cladding process is fully automated. The computer guides the laser over the workpiece dispersing precise amounts of diamond powder as it goes along.DLC Cladding LP’s diamond laser cladding process can be broken down into four steps.
Before the cladding process begins, we remove oil, grease, and other surface contaminants from the tool or piece of equipment.
At this stage, we also repair worn parts, remove old cladding if necessary, and build up areas of the workpiece if required.
Next, the workpiece is preheated.
After the workpiece is prepared, the computer that guides the encapsulated laser over the wear surface of the workpiece is programmed.
Once the computer is programmed, the nozzle begins moving over the wear surface of the workpiece.
It first disperses a “butter” layer of nickel-chromium matrix powder. This “butter” layer enhances the bonding between the diamond powder and the base metal layer.
As the nozzle moves over the workpiece dispersing the powder, the laser simultaneously creates a melt pool on the base metal.
As the powder comes in contact with the melt pool, it melts and mixes.
Once the laser moves on, the powder and base metal rapidly cool, solidifying the metallurgical bond between the two layers and preserving the structural integrity of the workpiece with a very thin heat-affected zone.
Once the butter layer is applied, the process is repeated with our proprietary diamond powder. Two layers of the diamond powder are applied.
Following a butter layer and two layers of diamond powder the workpiece is allowed to cool. It is then ground to a finish that meets the specific dimensions and tolerances for the piece’s specific application.