What is Cutting Acme Threads?

Acme threads are a type of trapezoidal thread that are commonly used for power transmission and linear motion applications, such as lead screws and jack screws. Cutting acme threads involves removing material from the workpiece using a cutting tool to create the thread profile.

To cut acme threads, a lathe or thread-cutting machine is typically used. The cutting tool is set to the correct depth and angle to match the desired acme thread profile, and the workpiece is rotated at a controlled speed. The cutting tool is then fed into the workpiece to remove material and create the thread.

Acme threads have a trapezoidal shape, with a flat top and bottom and angled sides. The angle of the sides is typically 29 degrees, making it easier to machine than other thread profiles. Acme threads are designed to transmit high loads and are often used in applications where accuracy and repeatability are important.

Cutting acme threads requires a high degree of precision, as any errors in the thread profile can lead to performance issues and premature wear. As a result, the cutting process may require multiple passes to achieve the desired thread profile, and the cutting tool may need to be sharpened or replaced periodically to maintain accuracy.