An Efficient Approach to the Five-Axis Flank Milling of Non-Ferrous Spiral Bevel Gears

Area of Science:

• Manufacturing Engineering
• Mechanical Engineering

Background:

• Five-axis flank milling offers flexibility for spiral bevel gear (SBG) production, particularly for small batches and repairs.
• Current methods suffer from low efficiency and potential inaccuracies affecting gear meshing performance.

Purpose of the Study:

• To enhance the efficiency of SBG cutting, especially for non-ferrous metals.
• To improve machining accuracy for qualified gear meshing performance.

Main Methods:

• A novel approach using a filleted cutter for simultaneous tooth surface and bottom cutting in a single pass.
• Tool path optimization considering contact area accuracy for improved meshing.
• Finite element method (FEM) analysis and closed-form solutions for efficient tooth surface point calculation.

Main Results:

• Reduced tool path length and increased cutting efficiency.
• Achieved qualified contact area and meshing performance.
• Validation through simulation and experimental cutting.

Conclusions:

• The proposed method significantly improves efficiency and accuracy in five-axis flank milling of SBGs.
• This approach is suitable for non-ferrous metal cutting and ensures reliable gear performance.