Custom five axis CNC machining stainless steel impeller used for water sports equipment

Custom five axis CNC machining SS alloy impeller used for water sports equipment

This is an impeller manufactured for a civilian water sports device. The impeller rotates at high speed and is the core component of this device, requiring high-quality standards.
Five-axis machining is a mode of CNC machine processing. The machine tools used for five-axis machining are typically referred to as five-axis machines or five-axis machining centers. Five-axis machining is commonly used in the aerospace field to process body parts with freeform surfaces, turbine parts, impellers, and more. Five-axis CNC machines can machine different sides of a workpiece without changing its position on the machine, significantly improving the efficiency of processing prismatic parts.
An impeller is a working wheel with one or more rows of blades, and the equipment used to machine impeller blades is known as five-axis equipment. The blade machining of an impeller involves surface machining, which can only be accomplished with five-axis equipment. Five-axis machining can handle some complex surfaces that three-axis machines cannot process.
Material: 316L stainless steel.
Process: Raw material cutting, Turning, CNC lathe machining, 5-axis CNC milling, finish turning.
Surface treatment: Natural surface finish
Tolerance: +/-0.03mm
MOQ: 1 pieces.
Testing equipment Vernier caliper, Coordinate measuring machine, projector, roughness tester, hardness tester, concentricity tester.
Packaging: Seaworthy packing with protection for productions or customers’ requirement
Delivery: 15 days.

Five axis CNC machining stainless steel impeller used for water sports equipment:

Our 5-axis CNC-Machined Product:

Technical challenges of five-axis machining impellers:

The technical challenges of five-axis machining impellers mainly include the following aspects:

  1. Complex geometries: Impellers typically feature intricate 3D surfaces and blade designs, requiring precise cutting strategies and toolpath planning to ensure accuracy in shape and dimensions.
  2. Cutting force control: Due to the thin-walled nature of impellers, cutting forces can easily lead to deformation or vibration during machining, necessitating precise control of cutting parameters for stability.
  3. Tool wear: When machining high-hardness materials (such as high-temperature alloys), tool wear can occur rapidly, affecting machining quality and efficiency, so it’s crucial to select appropriate tool materials and coatings.
  4. Cooling and chip removal: The complex structure of impellers requires careful design of coolant flow and chip removal to prevent heat buildup and clogging during machining.
  5. Machining allowance management: Maintaining a reasonable machining allowance during multiple cuts is essential to avoid tool collisions or over-machining in subsequent processes.
  6. Programming and simulation: The programming of five-axis machining is complex and requires advanced CAM software for toolpath simulation to avoid collisions and optimize machining efficiency.

Our Workshop:

5-axis CNC Machining Process: