AxiGroove Geometric Properties
Child GCDs of an AxiGroove include the bottoms and sides of the tooth valleys. They do not include the tops of the teeth, and they do not include surfaces normal to the axis of rotation; so the cost of such surfaces is not included in the cost of an AxiGroove.
Extracted geometric AxiGroove properties include the following:
• Approach From: direction of approach of the machine tool: OD (from the outside), ID (from the inside), or NONE.
• Artifact Key: unique identifier.
• Axial Length: length of the AxiGroove along turning axis.
• Cone Angle cone angle of the AxiGroove in degrees. This is one half the apex angle of the AxiGroove’s root cone. (The gear’s axis of rotation is the root cone’s axis of symmetry. The surface of the root cone coincides with the bottoms of the tooth valleys.) The angle is 0 for cylindrical AxiGrooves, positive for conical AxiGrooves, and -1 if the valley profile is not cylindrical or conical.
• Distance To Shoulder A: distance to the shoulder along the turning axis (in direction A). For external AxiGrooves, this is the distance between the end of the AxiGroove and the closest point on the turning profile that is higher than the valleys between teeth. For internal AxiGrooves, it is the distance to the closest point on the turning profile that is lower than the tooth valleys. A dash, -, is displayed when there is no shoulder.
• Distance To Shoulder B: distance to the shoulder along the turning axis (in direction B). For external AxiGrooves, this is the distance between the end of the AxiGroove and the closest point on the turning profile that is higher than the valleys between teeth. For internal AxiGrooves, it is the distance to the closest point on the turning profile that is lower than the tooth valleys. It is -1 when there is no shoulder.
• Groove Depth: depth of the grooves.
• Helix Angle: helix angle of the AxiGroove in degrees. This is positive for right-handed AxiGrooves, and negative for left-handed AxiGrooves.
• Helix Total Twist Angle: total twist of the AxiGroove in degrees. This is set to -1 when either of the following holds:
o AxiGroove’s inner surface is neither cylindrical nor conical.
o For external AxiGrooves, the bottom groove points are not on a spiral; for internal AxiGrooves, the top groove points are not on a spiral.
• Max Diameter: maximum diameter of the AxiGroove. This is twice the maximum distance from a tooth or valley surface to the turning axis.
• Min Diameter minimum diameter of the AxiGroove. This is twice the minimum distance from a tooth or valley surface to the turning axis.
• Number of Teeth: number of teeth in the AxiGroove.
• Radial Undercut Volume Ratio: ratio of the radial undercut volume to the whole volume of the AxiGroove.
• Shoulder Diameter A: diameter of the shoulder in direction A. For external AxiGrooves this is the largest diameter of the turning profile on one side of the AxiGroove. For internal AxiGrooves it’s the smallest diameter. This is -1 for AxiGrooves with no shoulder.
• Shoulder Diameter B: diameter of the shoulder in direction B. For external AxiGrooves this is the largest diameter of the turning profile on one side of the AxiGroove. For internal AxiGrooves it’s the smallest diameter. This is -1 for AxiGrooves with no shoulder.
• Surface Area: area of all grooves. This is the area of the walls and bottoms of the tooth valleys. It excludes the area of the tooth faces.
• Tooth To Valley Volume Ratio: ratio of tooth volume to valley volumes.
• Valley Axial Extent : axial length of valley extent. This is the total length of all inner faces of the axigroove adjacent to the turnable (recognized) surfaces.
• Volume: volume of axigroove.