Pratt & Whitney enhances repair service offerings

Pratt & Whitney Turbine Overhaul Services, a Singapore-based aircraft engine airfoil components repair specialist, has boosted its operations with an automated inspection system, laser cladding technology and improved Electron Beam Physical Vapor Deposition capabilities, the company said.

Pratt & Whitney Turbine Overhaul Services is a joint venture between Pratt & Whitney and Singapore Technologies Aerospace. Pratt & Whitney is a division of United Technologies Corp. (NYSE: UTX).

Manual operations have given way to automated processes at this facility. Prior to using an automated inspection system, inspectors had to painstakingly measure the internal wall thicknesses of specific components using a hand-held probe.

With the automated inspection system, inspectors simply place the parts to be measured into the machine which automatically carries out a wall thickness inspection on the required areas. The system has since reduced inspection process time cycle by 10 percent. The automated inspection system requires fewer tools, and as a result, is also helping to save costs arising from the maintenance and calibration of those tools.

Traditional welding operations have been replaced with laser cladding technology. Technicians used to manually weld materials together, a process which is highly dependent on the individual´s skill. With the laser cladding machine, staff can now perform the task with minimal supervision to achieve lower re-work rates. Similar to additive manufacturing, this laser technology deposits coatings on blade tips at a close-to-99 percent first-time pass rate. The overall downstream process cycle, and product cycle time has also been reduced.

Pratt & Whitney is a world provider of the design, manufacture and service of aircraft engines and auxiliary power units. United Technologies Corp., based in Farmington, Connecticut, provides high-technology systems and services to the building and aerospace industries. To learn more about UTC, visit its website at, or follow the company on Twitter: @UTC.