Turbine blades often feature intricate aerofoil geometries, tight wall thickness, and are made from heat-resistant alloys like Inconel or titanium. These characteristics make them challenging to machine, especially when tight tolerances and surface integrity are critical
DEK applies multi-axis CNC strategies to maintain contour accuracy and profile tolerances. We also integrate heat treatment and finishing in-house to reduce distortion risk. Final inspection includes dynamic balance testing and CMM verification to ensure aerodynamic and mechanical performance.
We use 5-axis machining centers to handle complex freeform surfaces. Each toolpath is CAM-optimized to control scallop height and avoid overcutting on airfoil and shroud features.
Inconel and titanium alloys require controlled feeds, coated tools, and constant temperature. We apply rigid setups, through-spindle cooling, and low-RPM strategies to maintain edge quality.
For blade root forms like fir-tree or dovetail types, we use wire EDM to achieve ±0.005mm tolerances without introducing thermal distortion.
We achieve Ra < 0.4μm using fine abrasive flow or hand-polishing for critical flow zones. Surfaces are then passivated or coated as per spec.
We conduct dynamic balancing with a two-plane method for rotating assemblies. CMM, height gauges, and profile projectors assist in pre-checking the geometry.
Précision, rapidité d'exécution et absence de défauts - les ingénieurs en mécanique font confiance à DEK lorsque l'échec n'est pas envisageable.
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