A profile is defined as cross section line of the addendum that is usually cut along the outer boundary of a part at a direction normal to the boundary. A master profile is used as the primary reference profile for the global addendum geometry. The global setting for profile parameters such as width, height, radii, and angles are used as default for other profiles. For various distances between part and binder around the addendum, only height and length may be varied from the master profile.

The displayed master profile does not represent the real geometry at every section on the addendum as the distance between part and binder varies. The displayed master profile is only a schematic drawing with respect to the settings for width, height, radii, and angles.

Click on the New button from the Addendum Generation dialog box to open the MASTER window. This window shows the master profile with the end section of the part and binder geometry. Figure 7.3.2 illustrates a Type 3 master profile with four radii.

Figure 7.3.2  Master Profile window

The dotted circles represent various radii parameters that can be interactively changed. The user can place the mouse cursor near the circle, click and hold the left mouse button, and drag the circle to modify the radius.  eta/DYNAFORM dynamically displays the radius near the circular arc. The user can also enter the value in the input frame to modify the radii by clicking the parameters of the circles.

For profile, as illustrated in Figure 7.3.3, five different lines can be used to adjust the location and size of the circles. Click and hold the left mouse button, and drag the circle to move the location of the circles. The user can also enter the value in the input frame to modify the location of the circles by double clicking the parameters of the circles.

The line or circle varies with the values in the 2D window. All the parameters aviliable are shown in Figure 7.3.3.

Figure 7.3.3  Various Addendum Parameters

Note:   The user should create different profiles by modifying the control parameters. In some cases, some parts of a profile may not be moved in certain directions to prevent unreasonable addendum designs. The user should also change different parameters to check the effects on the profile.

WIDTH:

BAR: Determine the width of the draw bar.

PO Line: Determine the position of the punch opening line (PO Line).

HEIGHT:

BAR: Determine the height of the draw bar.

CBAR: Determine the position of the CB height line (Counter Bar) with respect to the part boundary.

There are 6 types of master profiles available in DFE:

TYPE 1

The TYPE 1 profile is used primarily for parts with vertical edges. This type of profile will produce a tangential transition from the part boundary to the binder surface. As illustrated in Figure 7.3.4, the BAR WIDTH, BAR HEIGHT and CB HEIGHT are disabled in TYPE 1 profile. This type of profile is always extended from the part boundary.

Figure 7.3.4  Profile Type 1 window

TYPE 2

The TYPE 2 profile is the combination of TYPE 1 profile with RBAR. The TYPE 2 profile produces the shortest distance between the part boundary and the punch opening line. As illustrated in Figure 7.3.5, the BAR WIDTH, BAR HEIGHT and CB HEIGHT are disabled in TYPE 2 profile.

Figure 7.3.5  Profile Type 2 window

The position of the PO width depends on the die radius, RBAR radius and part plus width (if not zero).

TYPE 3

The TYPE 3 profile illustrated in Figure 7.3.6 is the combination of TYPE 2 profile with PART RADIUS and LCBAR added before RBAR. CB HEIGHT is also disabled. The positions of BAR and CBAR are adjusted by the height of BAR.

Figure 7.3.6  Profile Type 3 window

TYPE 4

The TYPE 4 profile illustrated in Figure 7.3.7, is the combination of the TYPE 3 profile with CBAR HEIGHT LINE for the user to adjust the positions of BAR and CBAR.

Figure 7.3.7  Profile Type 4 window

TYPE 5

The TYPE 5 profile is the combination of TYPE 4 profile with RCBAR. As illustrated in Figure 7.3.8, both BAR WIDTH and CB HEIGHT are disabled.

Figure 7.3.8  Profile Type 5 window

TYPE 6

The TYPE 6 profile is a combination of the TYPE 5 profile with a full-featured draw bar.  As illustrated in Figure 7.3.9, all parameters are enabled in this type of profile.

Figure 7.3.9  Profile Type 6 window

Note:   1. If the distance between part and binder changes, the displayed master profile does not represent the true geometry of each part of addendum, and it is just a schematic drawing about the setup of width, height, radius and angle.
2. If the distance between part and binder is basically consistent, the profile of the true geometry can be set by adjusting the binder height. As illustrated in Figure 7.3.10, adjust the binder height according to the practical distance (40mm) between binder and part.

Figure 7.3.10  Adjust binder height

NEW

After clicking on the New button to automatically create a Type 3 master profile with four radii, the name of the master profile will be listed in the Master Profile List.

DELETE

Click on the Delete button to delete the selected master profile.

Note:   If a segment of the addendum is created based on a master profile, this master profile cannot be deleted until the segment is deleted first.

EDIT MASTER

The user can select a master profile from the list to directly modify the parameters and types at the right of the 2D window.

IMPORT

This function enables the user to import a profile file (*.prf) and add its parameters into the current profile.

SELECT

This function enables the user to select other profile and copy the parameters into current profile.

SAVE

This function enables the user to save parameters of the current master profile to a profile (*.prf) file.  Click the Save icon to open the dialog window, as shown in Figure 7.3.11.

Figure 7.3.11  Save Profile Parameters in the File

2D WINDOW ZOOM

Hold the <CTRL> key and the right mouse button to zoom in or zoom out the 2D window along the cursor in the profile display window.

2D WINDOW FILL

Double click the profile display window. Automatically fit the profile to fill in the display window.

PARAM.

Toggle on this option to display all the parameters in the profile display window. Double click one parameter to directly modify the value in the input frame.

 

Ctrl Prf

After select one profile, it will be activated. Toggle on it, the selected will be set as the control profile. The adjacent profiles vary with this control profile.

GRID

Toggle on this option to display grid in the profile window.

CIRCLE

Display the circle of Part Radius, Bar Radius, CBar Radius and Die Radius, user can drag the circle to change the radius.

WHITE

Set the background color of 2D window. If this option is toggled off, the background color turns from white to black.

PROFILE

Toggle on this option to display all the profiles..

MESH

Toggle on this option to show the Addendum mesh.

BINDER

Toggle on this option to display the Binder.

CHECK

After selecting this option, the contour with 3 different colors will display in Die Parts and Addendum. This contour is used to illustrate whether the undercut exists.

UNDO

Click on this button to undo the last operation.