Undercut is a special machining operation that is required in cavities to ensure increased flow requirements through ports of the same size. Undercut increases the port area to handle the increased flow.
MDTools® insert an undercut in a cavity at the specified depth from the cavity’s face and at a specified angle from the center of the selected cavity.
1. MDTools 790 ribbon > Insert panel > Mounting Holes drop-down > Undercut
The Insert Undercut dialog box displays.
2. Select the cavity in which you want to insert the undercut.
3. Select any optional undercut from the list, if defined for the cavity.
Or
Select the port of the cavity.
Default values for the undercut as per the selected port/optional undercut are displayed.
4. Select/Deselect Concentric, if required.
This option is available for undercuts at zero offset distance.
Diameter should be larger than the selected port starting step diameter for concentric undercut.
5. Enter Undercut ID.
Selected Cavity ID_UC is the default component ID.
For example, if the ID of the selected cavity is 23, then the default component ID for the undercut will be 23_UC.
6. Modify the Offset distance, as required.
Change the desired distance between the center of the undercut and the selected cavity.
7. Modify the Undercut diameter, as required.
Undercut diameter should be larger than the selected port diameter.
8. Modify the undercut depth from the spot face of the cavity, as required.
9. Modify the undercut height, as required.
Default value would be the diameter of the selected port.
10. Select the orientation from the drop down or enter the orientation angle.
Enter the orientation angle between 0 to 360 degrees.
11. Enter the machining ID.
12. Click OK.
MDTools creates an undercut in the selected cavity with the selected orientation.
Note
Use $DIA, $DEPTH, $OFFSET & $HEIGHT for machining sequence any field for easily maintaining of machining chart information.
$DEPTH is measured from the surface of the manifold in the Machining Chart.
Optional undercuts linked to the cavity inside the Library Manager are displayed in the Optional Undercuts drop down.
Mandatory undercuts can be defined inside the Library Manager for a cavity. and the same Undercut is created automatically when that cavity is inserted.
Insert an undercut in the dead area of a cavity when the Concentric option is selected.
Insert an undercut overlapping with dead area and working area.