Feeds and speeds - turning strategy

Use the Feeds and speeds page to change the feeds and speeds settings for a turning toolpath.

Feeds and Speeds — Displays the Feeds and Speeds dialog where additional options such as the toolpath, tool, or material properties are available.

Load tool cutting data — Click to apply the values from the active tool's Cutting Data into this dialog.

Constant Surface Speed — Select this option to specify the speed as a constant surface speed.

Surface speed — Enter the surface speed

Maximum Speed — Enter the maximum constant surface speed in RPM. This is the maximum revolutions per minute that the machine can generate.

Approach Speed — Enter the constant surface speed approach in RPM. This is the initial speed for the operation before it reaches the part.

Cutting Conditions

Spindle Speed — Enter the rotation of the spindle, measured in revolutions per minute. If you edit this value then the Surface Speed value automatically updates to reflect your change.

The Spindle Speed is Surface Speed x 1000/3.14 x Tool diameter or, as a formula: n = Vc.1000/(.Dc). Editing either the Spindle Speed or Surface Speed automatically updates the other.

Spindle Direction — Select the direction that the spindle turns.

Cutting Feed Rate — Enter the cutting feed rate.

The Cutting Feed Rate is Number of teeth x Feed per tooth x Spindle Speed or, as a formula: Vf = Zn.fz.n. Editing either the Cutting Feed Rate or the Feed/Tooth automatically updates the other.

Coolant — Select the type of coolant.

• None — When selected, there is no coolant output.
• Standard — When selected, turns the coolant on.
• Flood — When selected, turns the coolant to flood.
• Mist — When selected, turns the coolant to mist.
• Tap — When selected, turns the coolant to tap.
• Air — When selected, turns the coolant to air blast.
• Through — When selected, turns the coolant to through spindle.
• Double — When selected, enables two coolant codes.

PowerMill turns the coolant off at the end of a toolpath.

You can apply coolant several different places. For more information see Coolant and how it updates/flows.

Some of these fields are preceded by an icon (either or ).

Calculated — When displayed, shows values calculated by PowerMill.

Edited — When displayed, shows value entered by you (or another user). Click to change this value to the automatically calculated value.