The following example is intended to illustrate the correct use of a formula in a formula.
Example: Main operating time of longitudinal turning (= pure machining time in which the work piece is chipping shaped)
Definition:
Main operating time: T = ((L * I) / (N/1666.66667 * F)) * 1666.66667
Speed of rotation: N = ((V * 1000) / (PI * D)) * 1666.66667
Note: |
(PI is a constant provided in TiCon; the factor 1666.66667 is used for conversion of TMU in minutes) |
Included parameters:
Variable |
Description |
Parameter type |
Value |
L |
Turning length (mm) |
Variable |
|
I |
Number of cuts |
Variable |
|
R |
Feed (mm) |
Constant |
0.08 mm |
N |
Speed of rotation, calculated from |
Formula |
|
V |
Cutting speed (m/min) |
Constant |
120 m/min |
D |
Work piece diameter (mm) |
Variable |
|
Procedure:
Create sub-formula (e.g. speed of rotation) Definition: N = ((V * 1000) / (PI * D)) * 1666.66667
 Formula: Enter definition in header / adjust formula type + time type Enter the required parameters in the "Parameters" tab.  Tab Parameters Check the validity of the formula in the "Test calculation" tab. Values for test calculation:
Speed of rotation (intermediate result): 509.3 rpm |
Create main formula and use the sub-formula in the "Parameters" tab as a parameter. Definition: T = ((L * I) / (N/1666.66667 * F)) * 1666.66667  Formula: Enter definition in header Enter all required parameters in the "Parameters" tab. Select "N" formula as the type of parameter Then click on the magnifying glass at the bottom.  A search dialog opens where you can navigate to the formula. The formula is selected by double-clicking or clicking "Open".  Dialog for formula selection After the formula has been entered, activate the "with variable generation" checkbox and click the "Generate parameter list" button.  Checkbox "with variable generation" enabled, "Generate parameter list" button clicked The formula has been created and can be saved.  Finished parameter list with formula Check the validity of the formula in the "Test calculation" tab. Values for test calculation:
Main operating time: t = 10.55 min |