Increased F135 TMS Aluminum Component Performance (1001-786)

Triton Systems, Inc. proposes to enhance elevated temperature resistance of cast aluminum components in the JSF F-135 engine fuel & lube systems by incorporating Fiber Reinforced Aluminum (FRATM) inserts into highly stressed areas of the castings. The F-135 Thermal Management System is mostly comprised of a sand cast aluminum alloy. At 400F, the tensile strength of this alloy is approximately 20ksi. While this strength level is sufficient for most portions of the gearbox, local stresses near mounting lugs and power shafting may approach or exceed these levels. We are proposing to develop manufacturing techniques to incorporate FRA inserts into critical areas where the baseline alloy strength is inadequate.