GE Aviation has demonstrated capability for a Cold Metal Transfer (CMT) repair – a new, low-heat metal build-up (additive technology) process for repairing seals on rotating parts that restores the seals to original dimensions.

“We first developed the process for GE90-94B hardware,” says Scott Fentress, GE Aviation’s Component Repair GM, “and its application is being expanded to other materials and engine components from various engine lines.”

CMT process w roboticsSpecifically, its low-heat input reduces crack sensitivity during the repair process – improving repair cycle time by 2.5X (vs. more conventional methods) and significantly improving yield, which translates to saving/repairing the part rather than having to purchase a completely new one.

“Though the basic technology is commercially available, we developed proprietary algorithms to provide very precise control of the metal deposition,” Fentress adds. “The bottom line is that this automatic robotic process enables repair on seals and potentially other parts that previously would have had to be scrapped.”

Equipment has recently been installed in GE Aviation’s repair facility in Cincinnati, and the repair is expected to be offered to customers soon. For more information on CMT, contact Lorna Hyman.

Or, learn more about GE Aviation’s repair capabilities.