GCD

Name

The name and number that identifies the GCD. This information is an identifier only and is not used in any cost calculation.

Properties

Num Lobes

The total number of lobes about the helix axis.

 

Pitch (mm)

The axial distance between grooves (of the same helical groove).

 

Groove Angular Span (deg)

The angular span of the groove; the angle is measured at the point of intersection with the external cylinder that encloses it.

 

Max Diameter (mm)

The diameter of the groove, about the helical axis, as measured to the top of the lobe.

 

Min Diameter (mm)

The diameter of the groove, about the helical axis, as measured to the bottom of the groove.

 

Axial Length (mm)

The extent of the helical groove, as measured along the helix axis.

 

Surface Area (mm2)

The surface area of the helical groove (Note: does not include the area of the outer cylindrical surfaces).

Technique

Requested

The technique selected by you. If you have not selected a technique, this field is set to auto-select.

 

Selected

The technique used by aPriori. If the requested technique cannot be used, aPriori will select a technique that can be used.

Results

Time(s)

The time (in seconds) that it takes to machine the GCD or complete work on a technique. If there is more than one occurrence of the GCD or technique, this field shows the sum of the occurrences.

 

Status

The costing status of the GCD or technique. A green icon indicates that costing was successful; a yellow icon indicates that costing succeeded with a warning, and a red icon indicates that costing failed.