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Thread grinding

Abrasive process with a grinding wheel cuts threads in a work piece which rotates slowly while being moved axially.

Beskrivning
Illustration of Thread grinding

The process

The grinding wheel that is shaped like the threads cross section rotates and polishes the workpiece while it slowly rotates and moves axially. Often the process is supported by a cutting fluid.

Cutting fluid
Cutting fluid has three main purposes. Cooling, lubrication and removal of chips.
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Threads
Spiral shaped outer or inner grooves are usually used for fitting
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Advantages and disadvantages
In comparison with alternative methods
Improved accuracy, smoother surface
Improved control of cut
Can handle hard materials
Can handle tough materials