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Aerospace Industry
Aero-engine blades are mostly made of difficult-to-machine materials such as titanium alloy and superalloy, including fan blades, compressor blades and turbine blades. They are core precision parts of aero power systems, going through forging blank, machining and final surface polishing.
Blades feature complex curved profiles. Forged blanks carry mill scale, machining allowance, tool marks and impact defects. Weld repair leaves weld beads. Overheating, burning and residual stress are high risks during grinding. Stock removal, surface roughness and subsurface damage must be strictly controlled to guarantee fatigue performance and aerodynamic profile.
Lean Abrasives’s diamond grinding wheels are used for precision grinding of blade fir-tree roots and root locating surfaces, stabilizing dimensional tolerance and reducing grinding burn for hard substrates such as superalloy and titanium alloy.
Our high-precision sanding belts and flap wheels are suitable for stock removal and weld blending on blade airfoils, leading edges and trailing edges, conforming flexibly to complex curved surfaces and smoothing repaired areas. Polishing wheels are used for final mirror finishing to reduce surface roughness and air flow friction loss.
Non-woven polishing brushes and nylon roller brushes remove burrs and fine oxide layers on blades with gentle grinding, avoiding new scratches. Sanding discs, abrasive discs, sanding paper and scouring pads are used for rework, local defect repair and manual fine finishing.
