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From Ground to Flight: Proven LPM® Technology
for Advanced Turbine Components
Doug Nagy, Jeff ChapinLiburdi Turbine Services, Mooresville, NC
[email protected], [email protected] 13, 2019
Liburdi Turbine ServicesLiburdi Turbine Services hascore competency in hot sectionrepair, superalloy processing and gas turbine engineering
Hamilton, Ontario, CanadaCharlotte, North Carolina
Ground and Flight Component RepairsFor 40 years, Liburdi Turbine has been repairing and upgrading airfoils
With High Yields: Recover What Others Scrap
When is a Cracked Turbine Vane a Success Story?
LPM Repair Durability Truly Revealed After Service.
Notice the ‘new’ Cracks are NOT Preferentially Following Prior Repairs.
Thought Experiment; Boundary ConditionsJet Engines Achieve Maximum Efficiency at Highest Temperatures.
and when Maintaining Minimal Blade-Tip Leakage
Thought Experiment; Boundary ConditionsAero-component and aero-engine structures must be light, but light-weight structures struggle to be stiff.
Turbine cases are no exception
Thought Experiment; Developing SolutionsWhat if we could protect blade tips during rub events?
COMOTI Romanian Research & Development Institute for Gas Turbines
And if we Could have that Defense in Depth?
The Solution might be Grit-Filled LPM
Yes, LPM Abrasive Tips WorkOperated 14,000h on F-Class IGT with Single Crystal blades
Still Protective after Service Exposure
And LPM Abrasive Tips are Producible Applicable by Furnace Sintering
or, Induction Sintering
Conclusions• Liburdi Turbine Services developed LPM as an alternative to the
distortion of conventional weld repairs for vanes, and free of the gap limitations of braze.
• LPM has penetrated the OEM manufacturing plan and flight hardware
• LPM allows innovative design freedom.• Just imagine what LPM could do for you!