Rough Turning Options

Rough turning operations support the following options:

• Casting Depth: casting material allowance. This defaults to the value of the cost model variable finishAllowance. To override the default, use the following option:

o Casting Depth: enter a value in millimeters greater than or equal to 0.1.

• Requested Feed Per Rev: distance the tool travels along the part per revolution of the workpiece. This value is used to help determine volume removal rate—see Chipmaking Time for Rough Turning Operations.

Select one of the following options:

o Use Computed Feed Per Rev: aPriori determines this value by interpolation from data tables—see Tool Selection. This value is adjusted to compensate for various factors, including required tolerance. Tool feed is also adjusted by multiplying by the cost model variable turningFeedAdjustment. The adjusted value is used to help determine volume removal rate.

o Override Feed Per Rev: enter a value in millimeters. This value is adjusted to compensate for various factors, including required tolerance. Tool feed is also adjusted by multiplying by the cost model variable turningFeedAdjustment. The adjusted value is used to help determine volume removal rate.

• Requested Tool Cutting Speed: how fast the workpiece turns in unit distance per unit time; that is, the speed at which a point on the outer edge of the workpiece moves along the circular path around the turning axis. This value is used to help determine volume removal rate. See Chipmaking Time for Rough Turning Operations.

Select one of the following options:

o Use Recommended Tool Cutting Speed: aPriori determines this value by interpolation from data tables--see Tool Selection. This value is adjusted to compensate for various factors, including machine spindle speed limitations and stock hardness. The value is also adjusted by multiplying by the cost model variable turningSpeedAdjustment. The adjusted value is used to help determine volume removal rate.

o Override Tool Cutting Speed: enter a speed in meters per minute. This value is adjusted to compensate for various factors, including machine spindle speed limitations and stock hardness. The value is also adjusted by multiplying by the cost model variable turningSpeedAdjustment. The adjusted value is used to help determine volume removal rate.

• Requested cut depth: depth of the cut. Use one of the following options:

o Use Computed Cut Depth: determined by tool selection (see Tool Selection). The value is adjusted based on machine power and limited by material allowance (as specified by the option Casting Depth—see above). The adjusted value is used to help determine volume removal rate—see Chipmaking Time for Rough Turning Operations.

o Override Cut Depth: specify a value in millimeters. This value is adjusted based on machine power and GCD size or limited by material allowance (as specified by the option Casting Depth—see above). The adjusted value is used to help determine volume removal rate—see Chipmaking Time for Rough Turning Operations.