Creating a Thread without Tap Head Operation with the Legacy Interface

You can create a Thread without Tap Head operation.

  1. From the Axial Machining section, select Thread without Tap Head then a position in the Manufacturing Program.
    • A Thread without Tap Head entity is added to the Manufacturing Program.
    • The Thread without Tap Head dialog box opens directly at the Geometry tab . This tab includes a sensitive icon to help you specify the geometry.
    • Areas colored red, texts such as No point and No geometrical feature has been selected indicated that geometry is required.
  2. Still in the Geometry tab.
    1. Select the red hole depth representation then select a threaded hole feature in the 3DEXPERIENCE platform. Double-click to end your selection.

      See Selecting Geometry

      The sensitive icon is updated with information such as the thread pitch, direction, depth and diameter, hole extension type, number of machining points, ...
    2. Select the axis representation in the sensitive icon to invert the tool axis direction, if required.
    3. Optional: Select the check boxes below the sensitive icon to modify the corresponding data.
  3. Select the Strategy tab and specify the following parameters:
    • Approach clearance (A)
    • Breakthrough (B)
    • Compensation number depending on those available on the tool.

    The other parameters are optional in this case.

  4. Select the Tool tab and choose a tool.

    Boring bar and tap tools are supported.

    See Assigning a Tool Element to a Machining Operation.

  5. Select the Feeds and Speeds tab to specify the feedrates and spindle speed parameters for the operation.

    Example for 3 machining points:

    • Motion at machining feedrate from 1 to 2
    • Spindle stop
    • Retract at retract feedrate from 2 to 3.

  6. Select the Macros tab to specify the desired transition paths.

    Defining and Editing Macros

  7. Click Display or Simulate to check the validity of the operation.

    See Simulating the Tool Path.

    • The tool path is computed.
    • A progress indicator is displayed.
    • You can cancel the tool path computation at any moment before 100% completion.
  8. Click OK to create the operation.
    If your PP table is configured with the following statement for Thread without Tap Head operations: 
    CYCLE/TAP, %MFG_TOTAL_DEPTH, %MFG_FEED_MACH_VALUE,
&MFG_FEED_UNIT, %MFG_CLEAR_TIP

    A typical NC data output is as follows: 

    CYCLE/TAP, 38.500000, 500.000000, MMPM, 2.500000

    The parameters available for PP word syntaxes for this type of operation are described in the NC_THREAD_WITHOUT_TAP_HEAD.

  9. Click Edit Cycle to edit or choose output syntaxes.