What are the machining stages in turning?

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Turning, which is a method of moving metal against metal for cutting purposes, has two stages. The first stage is rough cutting and the second stage is finishing cutting.

Rough cutting is done at high feeds and depths and is designed to remove as much material from the work piece as quickly as possible. Rough cutting produces a piece that is close to the desired form but with some material left on to allow for finishing cutting.

Finishing cutting, the second stage of turning, is done at low feeds and depths and is designed to render a product that achieves the desired tolerances, surface finish quality and dimensions of the end product. Finishing cutting uses higher speeds than those used in rough cutting.

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