kierteittäminen

Kierteittäminen is a Finnish term that refers to the process of creating screw threads, either internally or externally, on a workpiece. This is a fundamental machining operation used in countless manufacturing and repair applications. The creation of threads allows for the assembly and disassembly of mechanical components through the use of fasteners like bolts and screws, or for the creation of threaded shafts and pipes.

There are several methods for kierteittäminen. External threads are typically produced using a die or a threading lathe. A die is a cutting tool with hardened teeth that can be rotated onto a rod or bolt blank to form the thread. A threading lathe uses a cutting tool that moves along the workpiece in a helical path to generate the desired thread profile. Internal threads, found in nuts or tapped holes, are most commonly created using a tap. A tap is a tool with cutting edges that is rotated into a pre-drilled hole, removing material to form the internal threads. Other methods include thread milling and thread grinding, which offer higher precision and are often used for specialized applications or materials. The specific method chosen depends on factors such as the material being threaded, the desired thread size and pitch, the required accuracy, and the production volume.