Why can we improve accuracy

The advantage of five axes is not just 'within reach'. Each re clamping introduces new positioning errors, which accumulate over multiple clamping attempts and make it difficult to ensure positional accuracy. Five axis machine tools can complete multiple surface machining of complex parts in one clamping, reducing clamping times, unifying benchmarks, and naturally reducing cumulative errors. More importantly, the tool axis can be adjusted along the normal direction of the surface, allowing the tool to always cut at the optimal angle, resulting in smoother cutting force, more uniform tool wear, and better surface roughness. For aviation structural components and mold cavities that require extremely high dimensional accuracy, these improvements directly determine whether the parts can be used. This is also why the high-end manufacturing industry considers five axis capability as a key threshold.