INDUSTRY COMPONENT

Blades/Aerofoils

Aerodynamically shaped blades designed to extract energy from high-velocity fluid flow in turbine wheels for power generation and propulsion systems.

View Specifications

Component Specifications

Definition
Turbine blades, also known as aerofoils, are precision-engineered components mounted radially on a turbine wheel's rotor disk. They convert kinetic energy from expanding gases (in gas turbines) or steam (in steam turbines) into rotational mechanical energy through aerodynamic lift and impulse principles. Their complex 3D geometries include airfoil profiles, twist, lean, and sophisticated cooling channels for high-temperature applications.
Working Principle
Operate on aerodynamic principles where high-velocity fluid flow creates pressure differentials across the blade's airfoil profile, generating lift forces that impart torque to the turbine wheel. In impulse turbines, blades redirect fluid flow to transfer momentum; in reaction turbines, blades accelerate fluid while experiencing reaction forces. The energy conversion follows Euler's turbine equation relating fluid velocity triangles to mechanical work output.
Materials
High-temperature nickel-based superalloys (Inconel 718, Rene N5), titanium alloys (Ti-6Al-4V), single-crystal alloys for critical applications. Advanced coatings include thermal barrier coatings (yttria-stabilized zirconia) and environmental coatings (aluminide, platinum-aluminide). Composite materials (ceramic matrix composites) for next-generation designs.
Technical Parameters
  • Twist Angle 15-45 degrees
  • Aspect Ratio 1.5-4.0
  • Chord Length 50-300 mm
  • Surface Roughness Ra < 0.4 μm
  • Cooling Efficiency >0.7
  • Leading Edge Radius 0.5-2.0 mm
  • Trailing Edge Thickness 0.1-0.3 mm
Standards
ISO 12179, ISO 4287, DIN EN ISO 1101, ASME PTC 6

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Blades/Aerofoils.

turbine blades aerofoils turbine components gas turbine blades steam turbine blades airfoil design turbine wheel turbomachinery Blades/Aerofoils Blades/Aerofoils in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Turbine Wheel

A rotating component in a turbocharger that converts exhaust gas energy into mechanical rotation to drive the compressor wheel.

View Product Details

Engineering Analysis

Risks & Mitigation
  • High-cycle fatigue from resonant vibrations
  • Creep deformation under sustained high temperatures
  • Thermal-mechanical fatigue from thermal gradients
  • Erosion/corrosion from particulate matter
  • Foreign object damage (FOD)
FMEA Triads
Trigger: Resonant vibration at natural frequencies
Failure: High-cycle fatigue cracking leading to blade separation
Mitigation: Modal analysis during design, damping features, mistuning, active clearance control
Trigger: Exceedance of material temperature limits
Failure: Creep rupture and microstructural degradation
Mitigation: Advanced cooling schemes, thermal barrier coatings, temperature monitoring systems
Trigger: Thermal gradients during transient operations
Failure: Thermal-mechanical fatigue cracks at stress concentrations
Mitigation: Optimized thermal profiles, reduced constraint designs, improved material ductility

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Profile tolerance ±0.05 mm, position tolerance ±0.02 mm, surface finish Ra 0.4-0.8 μm
Test Method
Coordinate measuring machines (CMM) for geometric verification, fluorescent penetrant inspection (FPI) for surface defects, ultrasonic testing for internal flaws, modal analysis for vibration characteristics

Buyer Feedback

★★★★☆ 4.6 / 5.0 (13 reviews)

"The Blades/Aerofoils we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 23+ suppliers for Blades/Aerofoils on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Blades/Aerofoils is very thorough, especially regarding technical reliability."

Related Components

Inspection Frame
Structural support component in automated fabric inspection systems that holds cameras, sensors, and lighting for defect detection.
Machine Frame
The rigid structural foundation of a CNC wood router that provides stability, vibration damping, and precision alignment for cutting operations.
pH Sensor Assembly
Precision pH sensor assembly for automated monitoring and dosing systems in industrial applications
Load Cell Assembly
Precision load cell assembly for automated powder dispensing systems

Frequently Asked Questions

What is the difference between impulse and reaction turbine blades?

Impulse blades operate by redirecting fluid flow through fixed nozzles onto curved blades, converting kinetic energy through momentum change. Reaction blades accelerate fluid through converging passages between blades, utilizing both impulse and reaction forces with typically higher efficiency.

Why are turbine blades twisted along their length?

Blade twist compensates for varying tangential velocities from hub to tip, optimizing incidence angles across the span to maintain efficient aerodynamic loading and prevent flow separation under different rotational speeds.

How do cooling channels in turbine blades work?

Internal serpentine passages circulate cooler air (bled from compressor stages) through the blade, with film cooling holes ejecting air to form protective layers over the surface, allowing operation above material melting points.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Blades/Aerofoils

Blades (Vanes) Blades/Impeller