Chip accumulation is a common problem with external and internal thread turning. The fact that the chips do not break can create long tangled chips that can damage the surface of the part or stay inside a hole during internal threading operations.
This phenomenon happens because the tool does not achieve the optimal cutting conditions to break the chips because the feed is determined by the lead of the thread and passes are very small.
Oscillation cutting, which is an option available in CMZ lathes is used to break the chips with a sinusoidal oscillation in the X or Z axis, but it is not compatible with threading as the feed cannot be modified in this case.
The tool manufacturer Sandvik Coromant has recently developed a new method for programming thread turning called Optithreading™. In collaboration with Sandvik, CMZ has tested this methodology in house to check the results and the feasibility in all CMZ models. No special functions are needed.
Discover all the programming tips with this free downloadable
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Our applications department can analyse in detail the process to be carried out and offer you a part study helping you to reduce cycle times.
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