Additive GTF repair solution aimed at enhancing turnaround time

RTX has created a new additive manufacturing repair for some critical GTF engine components that lowers process time requirements by over 60 percent. The company is currently working to industrialize the repair, which will be implemented in phases throughout the global GTF MRO network. Pratt & Whitney anticipates that it will recover $100 million worth of parts over the next five years by minimizing repairs through additive methods throughout the MRO process.

Created by Pratt & Whitney's North American Technology Accelerator in Jupiter, Florida, the new solution involves repair to GTF structural case features using a 3D printing approach known as Directed Energy Deposition. By removing many steps from the existing repair process, the new method reduces process time by over 60 percent, with the largest reductions through minimizing machine changeover and reduced heat treat cycles. Pratt & Whitney developed the new technology in partnership with the Connecticut Center for Advanced Technology and the RTX Research Center. The new technology will also have future applications for component refurbishment due to wear over normal engine operation. 

A more agile, additive repair process enables the company to better serve its customers by improving turnaround time and reducing tooling costs, complexity, and setup. It also lessens the company’s reliance on current material supply constraints. Also, additive technology has the potential to support a range of critical GTF part repairs, and that they are actively exploring further opportunities for its implementation.