Restoring Turbine Blade Dimensions by Laser Weld
Blade tips in Diesel engine turbo chargers can become worn over time from operation. Once the turbine blade tip is ground below the secondary “undersize” limit, it cannot be returned to service, thus leading to premature fallout from it’s capable life. A repair procedure frequently performed on various aviation and land based turbines can restore the airfoil to it’s new make dimension by application of weld build up. As a result, scrapped turbo blades can be returned to service after being repaired by this procedure. The unique qualities of this process, provided limited and focused heat input, eliminating a need for pre and post well heat treat.