Restore cracked or damaged turbine parts using our patented brazing-based repair process — without the distortion and cracking risks of welding.
Tired of replacing gas turbine parts due to cracks or corrosion damage? Liburdi’s patented LPM® (Liburdi Powder Metallurgy) process is a field-proven, FAA-approved alternative to welding and conventional wide-gap brazing. Designed for nickel and cobalt superalloy repairs, LPM® delivers enhanced mechanical strength while avoiding the cracking and distortion common with welding. Unlike traditional brazing, LPM® can structurally restore damage with gap sizes up to 0.500” — as much as 10 times wider than what conventional brazing can handle. Suitable for aircraft, aeroderivative, and heavy-duty industrial components, LPM® restores critical geometry and ensures long-term durability and cost savings.
LPM® avoids weld-related distortion and rework, helping reduce downtime and return parts to service faster.
LPM® repairs withstand high thermal and mechanical stress, supporting reliable performance across full service intervals.
By restoring high-value parts, LPM® helps avoid early replacements and lowers long-term maintenance costs.
LPM® uses engineered nickel- and cobalt-based powder alloys to deliver fatigue-resistant repairs that extend service life in high-stress areas. This process pushes repair limits beyond what welding can achieve — restoring blade tips with exceptional oxidation resistance and durability. Ideal for hot-section components, LPM® ensures thermal performance and long-term reliability.
Liburdi’s LPM® process restores vanes and nozzles without the distortion associated with welding. Using MarM247 and other tailored alloys, LPM® reinforces trailing edges and vane throats, while restoring dimensional losses caused by erosion or hot corrosion. It also re-establishes tight tolerances, including precision machining of abutment seal slots to OEM specifications.
LPM® is FAA-approved for aircraft engine repairs and trusted by major OEMs in both aero-derivative and industrial applications. Since its development in 1990, the process has evolved to support a wider range of alloys and larger repair areas. OEM testing has shown that LPM® repairs can match the performance of new parts — restoring components once considered unrepairable.
LPM® allows significantly larger repair volumes than conventional wide-gap brazing — restoring gaps up to 0.500", compared to the typical 0.004"–0.040". It uses mechanical removal methods (such as grinding) to eliminate damaged material and oxides, enabling strong metallurgical bonding without the need for chemical cleaning. LPM® materials are applied as putty or tape, depending on the repair geometry, allowing uniform build-ups on eroded airfoils and trailing edges. The process offers high repair integrity with minimal boron content, ensuring excellent hot corrosion resistance and full compatibility with conventional coating systems — even after multiple heat treatment cycles.
Unlike welding, LPM® repairs do not melt the base material, eliminating heat-affected zone (HAZ) cracking and distortion — particularly in crack-sensitive superalloys. It uses matching or near-matching nickel and cobalt alloys to restore structural strength, often exceeding that of conventional weld fillers like IN625. LPM® is especially effective for complex geometries such as vane trailing edges or abutment areas, where welding may cause localized stress and dimensional distortion. The result is a stronger, more stable repair — ideal for mission-critical turbine parts.
