Thread turning is a precision machining process mainly used to manufacture various types of threads, including T threads (Trapezoidal threads), R threads (Round threads) and tapered threads (Tapered threads). These thread types are widely used in mechanical components such as bolts, nuts, bearings and various connections to ensure a tight fit and force transmission between components. Before discussing in depth the application of milling cutters in thread turning, let us first understand the characteristics of these three threads and their application scenarios.
T thread (Trapezoidal thread)
Features and applications:
T thread, or trapezoidal thread, is characterized by the trapezoidal shape on its side. This thread provides a high-strength connection and is suitable for scenarios that bear heavier loads, such as screw drive systems. Its unique geometry allows it to disperse stress when subjected to load, thereby extending the life of the part.
R thread (Round thread)
Features and applications:
R thread, or round thread, has a smooth appearance. This type of thread is often used when a sealing effect is required, such as in pipe connections. Their rounded design helps provide a better seal and is suitable for systems conveying liquids or gases.
Tapered thread (Tapered thread)
Features and applications:
Taper teeth are named for their tapered appearance and are commonly found in connectors that require self-locking functionality. This thread design allows for a tighter seal when connecting and is particularly suitable for applications that require leak protection, such as water pipe connections.
Use of dental milling cutter
Milling cutters are key tools for thread turning. They are designed according to specific thread shapes to accurately cut the required thread form. When selecting a milling cutter, you need to consider not only the type of thread, but also the hardness of the material, processing accuracy requirements, and production efficiency.
Types of dental milling cutters:
Straight tooth milling cutter: suitable for most general thread processing, especially when processing straight or wider threads.
Spiral tooth milling cutter: used for processing deep threads or difficult-to-machine materials. Its spiral design helps to remove chips and reduce cutting resistance.
Taper milling cutter: specially designed for processing tapered threads, which can accurately form the required tapered threads.
Note when using:
Make sure the milling cutter is aligned with the workpiece axis to avoid thread deflection.
Choose appropriate cutting speeds and feed rates to prevent tool wear too quickly and achieve good surface roughness.
Use a suitable lubricating coolant to extend tool life and prevent workpiece overheating.