Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
The high-pressure turbine blades and compressor blades of aircraft engines are expensive, and their operation under high temperature and high stress can easily lead to blade tip wear and curling. Restoring its original aerodynamic profile is the core challenge of repair. Laser cladding (especially laser directed energy deposition technology, DED) has become a cutting-edge technology for repairing aviation components due to its extremely high forming accuracy and controllability.
The repair process first involves 3D laser scanning of the damaged blade, comparing the data with the original CAD model, and automatically generating a repair path. Subsequently, using a high-precision laser head in an inert gas shielded chamber, nickel based high-temperature alloy powder (such as the Rene series) with a composition similar to the base material is melted layer by layer to the blade tip wear area. Strictly control the interlayer temperature during the cladding process to avoid grain coarsening.
After fusion forming, the blades need to undergo a small amount of CNC precision grinding to ensure that the blade tip profile and tolerances fully meet the design requirements. Finally, non-destructive testing such as fluorescence penetration and X-ray is used to ensure the absence of defects. Wind tunnel tests have verified that the airflow separation characteristics and working efficiency of the repaired blades are no different from those of the new ones. This technology reduces the cost of single repair to only 30% of new parts, while shortening the supply cycle of spare parts, and has extremely high military and economic value.
