How does 5-axis machining differ from 3-axis and 4-axis machining?
Custom Metal Parts Samples from a Chinese Factory
5-axis CNC machining incorporates two rotary axes, allowing the cutting tool or the part to tilt and rotate; this enables the machining of multiple sides in a single setup without the need to stop and re-clamp the workpiece. Compared to 3-axis machines—which move linearly along the X, Y, and Z axes—and 4-axis machines—which add a single rotary axis—5-axis machining offers a second rotary axis, significantly increasing flexibility.
Depending on the machine configuration, 5-axis machining can rotate the part, the tool, or both, allowing you to access hard-to-reach areas in a single setup. This is crucial when dealing with complex geometries, sharp angles, or deep cavities. Imagine carving a sculpture: with 3-axis machining, you can only chisel one side at a time; with 5-axis machining, you can rotate both the sculpture and the chisel simultaneously without stopping or repositioning.
When to use 5-axis instead of 3-axis or 4-axis machining
Your part features awkward angles or deep pockets that are difficult to access.
You need fewer setups to maintain tight tolerances.
You require a flawless surface finish and smoother tool paths.
You are prototyping a complex object or manufacturing a part with intricate details.
