Innengewindeschneid

Innengewindeschneid, also known as internal thread cutting, is a machining process used to create screw threads inside a hole. This is typically achieved using a tool called a tap. Taps are essentially threaded rods with cutting edges that remove material as they are rotated into a pre-drilled hole. The process is fundamental in manufacturing for creating fasteners, assemblies, and various mechanical components.

There are several types of taps, including hand taps, machine taps, and thread-forming taps. Hand taps are operated manually, often with a tap wrench, and are common for lower volume production or repair work. Machine taps are designed for use in power-driven machinery like drill presses or CNC machines and are characterized by their ability to withstand higher cutting speeds and forces. Thread-forming taps, unlike cutting taps, deform the material to create the thread, which can result in stronger threads with no chip production.

The success of innengewindeschneid depends on several factors. Proper hole preparation, including drilling the correct pilot hole size, is crucial. Lubrication or cutting fluid is essential to reduce friction, cool the tool and workpiece, and facilitate chip removal. The choice of tap material, such as high-speed steel (HSS) or carbide, depends on the workpiece material and production requirements. Incorrect tap usage, such as cross-threading or applying excessive force, can lead to tool breakage or defective threads.