Whirlwind milling , the magical tool for thread processing

What is whirlwind milling？

Because of its high milling speed (speed up to 400m/min), the processing efficiency is fast, and compressed air is used for chip cooling. The cutting splash during the machining process is named after the whirlwind.

Whirlwind milling thread is a whirlwind milling head to process the thread, and only one cut can complete the thread processing method.

Whirlwind milling tool determination process

01. Determine part shape

02. Determine the tool shape according to the part

03. Make the corresponding blade
Several companies specialize in the production of thread milling blades, such as Camus, NTK, Haoen and domestically made Fengyi. Fengyi cutters are commonly used professional blades for domestic whirlwind milling equipment.

04. Install the blade on the cutter head

Five movements of whirlwind milling

After the cyclone milling machine is matched with the lathe, five processing motions need to be completed during the processing process:
The cutter head drives the cemented carbide forming knife to rotate at high speed (main movement)
The lathe spindle drives the workpiece to rotate slowly (auxiliary movement)
Cyclone milling moves along the workpiece axis (feed motion) according to the workpiece pitch or lead
Cyclone milling carries out radial movement (cutting movement) driven by the carriage in the lathe
Whirlwind milling has the freedom to adjust the helix angle within a certain angle range (rotational movement)

Advantages of whirlwind milling
The advantages of whirling thread cutting:
1. High processing efficiency, higher than traditional turning processing efficiency! The highest can reach more than 10 times.
2. The product is formed in one cut, no need to retract for eccentric cutting.
3. Without changing the structure of the lathe, the spiral lift angle is adjustable, and the installation is convenient.
4. The surface roughness can reach Ra0.8 microns or even higher, and the processing accuracy can be improved by 2 levels.
5. The programming method is simple and fast, and the positioning accuracy of the forming blade, the blade and the blade slot is high, which reduces the technical requirements of the workers.

Cyclone milling can achieve dry cutting, heavy-duty cutting, difficult-to-machine materials and ultra-high-speed cutting, with low power consumption. The surface roughness can reach Ra0.8μm. The spindle speed of the lathe is slow, so the machine has high motion accuracy and good dynamic stability. It is an advanced thread processing method.