from ground to flight: proven lpm® technology for advanced ... · from ground to flight: proven...
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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
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Liburdi Turbine ServicesLiburdi Turbine Services hascore competency in hot sectionrepair, superalloy processing and gas turbine engineering
Hamilton, Ontario, CanadaCharlotte, North Carolina
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Ground and Flight Component RepairsFor 40 years, Liburdi Turbine has been repairing and upgrading airfoils
With High Yields: Recover What Others Scrap
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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.
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Thought Experiment; Boundary ConditionsJet Engines Achieve Maximum Efficiency at Highest Temperatures.
and when Maintaining Minimal Blade-Tip Leakage
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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
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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?
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The Solution might be Grit-Filled LPM
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Yes, LPM Abrasive Tips WorkOperated 14,000h on F-Class IGT with Single Crystal blades
Still Protective after Service Exposure
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And LPM Abrasive Tips are Producible Applicable by Furnace Sintering
or, Induction Sintering
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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!