Question

Derive
expression for calculation thread
id for 2-D data.​

Answer 1

Answer:

• By dividing the full cutting depth of the thread into smaller cuts, the sensitive nose radius of the insert is not overloaded.

• Example: By taking 0.23–0.10 mm (0.009–0.004 inch) in cutting depth per pass (radial infeed), the full cutting depth (ap), and the profile depth of the thread (0.94 mm (0.037 inch)), is turned on a 1.5 mm (0.06 inch) pitch metric thread in 6 passes (nap).

Answer 2

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By dividing the full cutting depth of the thread into smaller cuts, the sensitive nose radius of the insert is not overloaded.

Example: By taking 0.23–0.10 mm (0.009–0.004 inch) in cutting depth per pass (radial infeed), the full cutting depth (ap), and the profile depth of the thread (0.94 mm (0.037 inch)), is turned on a 1.5 mm (0.06 inch) pitch metric thread in 6 passes (nap).

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