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Precision CNC
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Engineering-grade turbine wheel prototype for turbocharger, precision CNC machined aluminum parts with 2mm blade walls. Delivered 3 units in 3 days.

プロジェクト概要

Industry: 自動車 / Turbocharger
Material: Aluminum Alloy
Process: Multi-Axis CNC
Blade Wall: 2mm Thin Wall
Lead Time: 3 Days
Volume: 3 Units

課題

The client needed precision-machined turbine wheel prototypes for a turbocharger application, where concentricity, structural integrity, and blade accuracy directly affect vehicle stability and performance at high speeds.

Critical Requirements

Ultra-thin blade walls: 2mm blade thickness requiring extreme precision to avoid deformation or breakage during machining.
High accuracy concentricity: Structural integrity directly affects vehicle stability, handling performance, and safety at high speeds.
Tight development schedule: Only 3 days from order confirmation to delivery.
Small batch CNC production: Just 3 units needed, requiring efficient setup without compromising quality.
Limited budget: Cost-effective machining strategy without sacrificing precision.

Our Machining Solution

We employed a multi-stage CNC machining strategy, combining 3-axis rough machining with precision channel and blade finishing, followed by rigorous CMM verification.

3-Axis Rough Machining

Initial rough machining using 3-axis CNC to establish the base geometry and remove bulk material efficiently, setting the foundation for precision finishing passes.

Precision Channel & Blade Machining

Semi-machining for flow channels followed by precision machining for blade profiles, fillet clean-up, and deburring with dynamic balancing. On-machine probing ensured accurate positioning throughout.

CMM Inspection & Verification

Coordinate Measuring Machine (CMM) inspection verified all geometric tolerances including concentricity, blade profile accuracy, and surface finish requirements.

Final Quality Assurance

Strict in-process and final inspection ensured the project was completed with high quality. Each unit underwent dynamic balancing verification before packaging.