Carbide Milling Inserts for Thread Milling with High Productivity / Excellent Thread Quality
- In non-rotating parts, thread milling is a good alternative to tapping and can also be used instead of thread turning.
- With a thread milling cutter, the thread can be machined very close to the shoulder or the bottom of the hole.
- In long chip materials, interrupted cutting in milling provides good chip control.
- The same tool is used for a wide range of thread diameters and there is no upper limit for the hole size.
- Full threading near the bottom of the blind hole can be machined.
- It can be adjusted for specific tolerances.
- Long processing range requirements and preferred solutions to avoid vibration.
- Good chip control.
- Good chip evacuation provides reliable performance.
- Advantageous results are provided in hard material processing, as well as in poor machinability and chip shape.
- The internal coolant supply facilitates threading in difficult to machine materials.
- In the event of a tool break, it is easy to remove the tool without damaging the workpiece.
- Thread profile deviation:
- The thread shape of the thread milling cutter has a small error and can be ignored.
- This depends on the relationship between the threading diameter and the cutting diameter and also on the pitch.
- A good rule of thumb is that the proportional relationship between the threading diameter and the diameter of the threaded tool should be no less than 1.5.
- Choose the shortest tool possible.
- The same thread milling cutter can also be used for larger thread sizes with the same pitch.
- Machine tool requirements:
- Thread milling requires a machine that can move along the X, Y, and Z axes simultaneously.
- The X and Y axes determine the diameter of the thread, while the Z axis controls the pitch.
- Thread milling is best done under dry machining.
- A variety of different micro-lubrication systems using compressed air along with a small amount of special oil facilitates chip evacuation.
Recommended Cutting Parameters:
- In internal thread milling, the tool periphery will be faster than the tool centerline.
- In most milling machines, the feedrate (mm/min) is programmed based on the centerline of the spindle. This must be included in the calculation of thread milling to avoid shortening, vibration or complete fracture of the tool life.
- Thread milling cutters can use the same cutting speed as conventional end mills.
- For shallow cutting, the feed rate should not exceed 0.15 for a well-machined threaded surface.