An advanced thread processing method —— Vortex milling

Thread, like other types of appearance, has certain requirements of size accuracy, shape and position accuracy and appearance quality. Because their use and application requirements are different, skill requirements are also different, often processing thread difficult point is the accuracy and power control.

For fastening threads and transmission threads without transmission accuracy requirements, the general requirements are for medium diameter, large diameter of external thread and small diameter of internal thread. For threads with drive accuracy or for reading purposes, pitch and Die Angle accuracy are required in addition to pitch and top diameter accuracy. In order to ensure the transmission or reading accuracy and wear resistance, the surface of the thread roughness and hardness also have higher requirements.

Here we introduce an advanced threading method —— Vortex Milling!

Cyclone milling is a new type of thread processing technology, which uses hard alloy forming cutter mounted on high-speed rotating cutter head to mill out thread from workpiece. Because of its high milling speed (speed up to 400m/min) , high processing power, and the use of Compressed air chip cooling. The process of cutting is sputter like a cyclone, named as vortex milling. The so-called "whirlwind milling" can choose different cemented carbide tools on a variety of data for high-speed, efficient thread milling equipment. Whirlwind milling drives the carbide tool on the external rotating cutter head or the internal rotating cutter bar to rotate at high speed to complete the cutting movement. Whirlwind milling can complete dry cutting, heavy-duty cutting, difficult-to-cut data and ultra-high-speed cutting, low power consumption. The surface roughness can reach RA0.8 M. Lathe spindle speed is slow, so the machine movement precision is high, dynamic stability is good. For most users, they have not touched the whirlwind milling equipment, processing thread by ordinary lathe, backward technology, low power, low yield, meet the slightly disorderly thread structure can not be processed. Once the introduction of whirlwind milling, that is, like a whirlwind across the south do not, won the broad user's praise. Because the whirlwind milling machine does not need to change the structure of the machine can be easily installed in the ordinary machine, processing screw screw screw thread products, power improvement of 10-30 times, processing accuracy improvement of two levels, finish up to 0.8 m.

Whirlwind milling of the cutting method is divided into:

1. The incised

2. cutaway

The BENEFITS OF INLINE WHIRLWIND MILLING:

The inner-cutting whirlwind milling cutter covers the cutting of the part, because the whirlwind milling cutter has long enveloping stroke, large cutting amount, higher cutting force and higher finish than the outer-cutting whirlwind milling. So the incised type whirlwind milling is suitable for thread precision machining.

Whirlwind milling and lathe after the completion of the process in the need to complete five processing movement:

1. The cutter head drives the carbide forming cutter to rotate at high speed (main motion)

The Lathe spindle drives the workpiece to rotate slowly (auxiliary motion)

3. The cyclone mill moves along the axial direction of the workpiece (feed motion) according to the pitch or lead of the workpiece

4. The cyclone mill carries on the Radial Movement (cutting movement) under the driving of the carriage in the lathe

5, the whirlwind milling still has the degree of freedom of the spiral rise angle adjustment in the certain angle scope. (whirring motion)

ADVANTAGES OF WHIRLWIND MILLING OF THREADS:

1, high processing power, than the traditional processing power can be improved by more than 10 times

2, the product one-knife Molding, partial pain cutting does not need to retreat the knife

3, do not change the lathe structure, spiral angle adjustable, convenient device

4. The surface roughness can reach Ra0.8 m, and the machining precision is improved by 2 grades

5. The cost of machining parts has dropped dramatically

6, Lathe spindle feed slow, easy to operate, decline on the worker's professional skills.