IMPORTANCE OF THREAD MACHINING IN THE MANUFACTURE OF MECHANICAL PARTS
Thread machining, also known as thread whirling, is a machining process that generates threads on cylindrical parts. Although it may seem like a simple task, thread machining is actually a complex process that requires precision and skill to achieve high quality results.
Thread turning is a fundamental process in the manufacture of mechanical parts, as threads are used in a wide variety of applications, from heavy machinery to medical and electronic devices. There are different methods for generating screw threads, which can be external or internal, but all involve the removal of material from a blank.
COMMON METHODS OF CNC THREAD MACHINING
Among the CNC subtractive machining methods, the most common methods for thread machining are thread cutting, thread grinding and thread lapping.
Thread cutting is performed by using cutting tools, such as taps and taps, or by thread milling with a rotating multi-point tool. Single point tapping is another method of thread cutting that uses a single point tool on a CNC lathe to impart a thread on the inside or outside of a rotating part. Thread milling is a more precise CNC milling operation in which a rotating multi-point tool threads the surface of a workpiece if a helical tool path can be maintained.
Thread grinding, on the other hand, is performed on a variety of grinding machines that use specialised grinding wheels precisely profiled to the desired thread pattern that travel along the rotating workpiece. This technique is typically used to produce threads to very close tolerances or in extremely hard materials.
Thread lapping is a process that involves the use of a lapping tool, which is a flat plate or disc coated with a fine abrasive, to remove material from the workpiece. This method is generally used to achieve high quality surfaces and to remove small imperfections in threads.
CHALLENGES IN PRECISION MACHINING OF SCREW THREADS
Today, modern machining shop technology makes it possible to produce precise and accurate screw threads faster, more accurately and more efficiently, regardless of their size. However, precision machining of screw threads remains a challenge, especially in micro threading, where even greater precision is required. Therefore, the choice of a suitable application for screw thread machining is based on the constraints of time, money, equipment and the degree of precision required.
In summary, precision machining of screw threads is a fundamental process in the manufacture of mechanical parts and requires skill and precision to obtain high quality results. The various methods used to generate
