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CNC Four-Axis

Precision 4-Axis CNC Machining Services: Cost-Effective Solutions for Complex Parts

What is 4-Axis CNC Machining?

4-axis CNC machining is an advanced manufacturing process that adds a rotational axis (the A-axis) to the standard X, Y, and Z linear movements. In this setup, the workpiece can rotate around the X-axis, allowing the cutting tool to approach the part from multiple angles without manual repositioning.

For B2B buyers, this means higher efficiency and tighter tolerances for components with curved surfaces or lateral features.

Key Advantages of 4-Axis Milling for Your Project

Why should you choose 4-axis over traditional 3-axis machining? Here are the primary benefits:

Reduced Setups (Single-Fixation): We can process four sides of a part in one setup. This minimizes human error during flipping and significantly shortens production cycles.
Complex Geometries: It is the ideal choice for parts requiring continuous rotation, such as cams, screw threads, and curved slots.
Superior Surface Finish: By maintaining the optimal cutting angle, 4-axis machines reduce tool vibration, resulting in a smoother, high-quality finish.
Enhanced Precision: Fewer setups mean better alignment between different machined features, ensuring your parts meet strict ISO standards.

Custom 4-Axis Milling for Aerospace Recommended Cutting Parameters

Material	Cutting Speed (m/min)	Feed Rate (mm/tooth)	Axial Depth (mm)	Radial Depth (mm)
Aluminum Alloy (6061/7075)	300 - 800	0.05 - 0.20	2.0 - 5.0	0.5 - 2.0
Stainless Steel (304/316)	60 - 150	0.03 - 0.10	0.5 - 2.0	0.2 - 1.0
Medium Carbon Steel/Alloy Steel	100 - 250	0.04 - 0.15	1.0 - 3.0	0.3 - 1.5
Titanium Alloy (Ti-6Al-4V)	40 - 80	0.03 - 0.08	0.3 - 1.5	0.1 - 0.5
Engineering Plastics (POM/PEEK/PTFE/Nylon)	200 - 500	0.05 - 0.25	1.0 - 5.0	0.5 - 3.0

Note: These parameters are general guidelines. Our engineers optimize cutting conditions for every specific project based on part geometry and machine rigidity.

Common Applications & Special

Our 4-axis CNC capabilities serve critical industries worldwide:

Special feed in four-axis machining

Linear Feed Vs. Rotary Feed

In 3-axis machining, the speed is linear (mm/min). However, in 4-axis simultaneous machining, the part rotates, and the feed unit becomes degrees per minute.

Key Knowledge Points:

Because of differences in part diameter, the actual cutting speed produced by the same rotational speed on the surface will vary. Excellent manufacturers like Sindh Technology (Suzhou) Co., Ltd. use TCPM (Tool Tip Control) or Inverse Time Feed to ensure smooth cutting.

4-Axis vs. 5-Axis: Which One Do You Need?

While 5-axis machining offers maximum flexibility, 4-axis machining is often the most cost-effective solution for parts that only require rotation around one axis. It provides the perfect balance between complexity and manufacturing cost.