Precision Custom Aluminum Turning Parts

CNC Turning Tolerance Precision

Dimension Tolerance

General Grade: Tolerance range from ±0.02mm to ±0.1mm, suitable for general mechanical parts such as brackets, housings, and other non-core components. These parts have low precision requirements, which CNC turning can easily meet. They are often used in conjunction with structural components after Sheet Metal Bending and are commonly found in general equipment manufacturing.

Precision Grade: Tolerances can be controlled within ±0.005mm to ±0.02mm, suitable for transmission components such as motor shafts and gears. High-precision tools and stable cutting parameters must be used during processing to ensure smooth operation after assembly. These parts work in conjunction with precision components processed by CNC Milling to enhance the overall performance of the equipment.

Ultra-precision Grade: Tolerances can reach ±0.001mm to ±0.005mm, primarily used for gyroscope shafts in aerospace applications and core components of precision instruments. Achieving this level of precision requires a temperature-controlled processing environment and advanced inspection equipment. Some parts may also require fine adjustments through High Precision CNC Milling.

Geometric Tolerances

Roundness: For standard parts, roundness can be controlled within 0.005mm, while precision parts can achieve 0.002mm, ensuring the stability of shaft components during rotation and reducing vibration and noise. This metric is equally important as the flatness requirements of Precision Milling Services.

Coaxiality: The coaxiality of multi-step shafts is generally controlled within 0.01mm, ensuring uniform force distribution across all parts after assembly and extending equipment lifespan. This is commonly used in critical components such as engines and transmissions, with processing referencing the positioning accuracy standards of 5-Axis CNC Milling.