This function is used to estimate the elongation ratio of the blank along the specified profile direction. It is useful for estimating the level of blank deformation.

If this function is selected, the user needs to select a profile. After selecting a profile, two section lines are highlighted as illustrated in Figure 7.3.57. These section lines are created from the plane of the profile intersecting with the binder and the die.

Figure 7.3.57  Select profile

Figure 7.3.58  Point Selection on Line

Next, the user selects a reference point on the highlighted line or clicks the middle button to select the default point. As illustrated in Figure 7.3.58, the lines are divided into three lines identified as 1, 2, 3 respectively. The result is printed in the message prompt window:

ELONGATION: 23%; LENGTH: 1: 434.1   2:521.7   3:207.7

ELONGATION is the elongation percentage of the specified section line after deformation. It is calculated by the following equation:

ELONGATION = (LENGTH 1+ LENGTH 3 -LENGTH 2)/ LENGTH2 *100%

LENGTH 1 and LENGTH 3 indicate the lengths of the punch and addendum after deformation, respectively. LENGTH 2 indicates the length of the line 2 prior to deformation.

Then, the user continues by selecting another profile or click on the right mouse button to exit the function.