MASTER PROFILE

A profile is a cross section line of the addendum that is usually cut along the outer boundary of a part with the direction normal to the boundary. 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 all 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 a schematic drawing with respect to the settings for Width, Height, Radii and Angles.

Click the NEW button from the ADDENDUM menu, and DYNAFORM will open the PROFILE display window. This window shows the master profile with the end section of the part and binder geometry. Figure 6.3.2 shows a Type 1 master profile with two radii.

Figure 6.3.2 Master Profile

The dotted circles represent various radii parameters that can be interactively changed. Using the LEFT mouse button, click and drag a circle perimeter. The program shows the radius of the circle in the corresponding data window under the Radius column.

There are four different dashed lines that can be used to adjust the position of the circles. Using the LEFT mouse button, click and drag the line to move the circle. The program will display the corresponding parameters in the data windows.

The total length-of-line of the profile is displayed at the lower right corner of the PROFILE GRAPHIC window.

These lines or circles may also be modified using the corresponding data boxes. Figure 6.3.3 shows all the available parameters.

Figure 6.3.3 Various Addendum Parameters

Note: The user should create different profiles using these lines to develop a feeling for 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 see the effects on the profile.

WIDTHS:

Bar: Determines the width of the drawbar.

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

HEIGHTS:

Bar: Determines the height of the drawbar.

CBar: Determines the position of the CB height line (Counter bar) with respect to part boundary.

There are 6 types of master profiles available in DFE.

TYPE 1

Type 1 profile is used primarily for most parts' vertical edge. This type of profile will produce a tangential transition from the part boundary to the binder surface. Bar width, Bar height and CB height are deactivated as shown in Figure 6.3.4. This type of profile is always extended from the part boundary.

Figure 6.3.4 Profile Type1

TYPE 2

Type 2 profile produces the shortest distance between the part boundary and the punch opening line. Bar width, Bar height and CB height are deactivated as shown in Figure 6.3.5.

Figure 6.3.5 Profile Type 2

The position of PO depends on the Punch Radius, Die Radius and Part Plus width (if not zero).

TYPE 3

Type 3 profile is similar to Type 1 with an added step in the middle of the profile. The height of Bar is measured from the tangential extension of the part. Bar width is set to minimum and is not activated. CB height is also switched off. Figure 6.3.6 shows the TYPE 3 PROFILE dialog window.

Figure 6.3.6 Profile Type 3

TYPE 4

Type 4 profile is similar to Type 2 with an additional step in the middle of the profile. CB height is measured from part boundary. Bar width and Bar height are deactivated. Figure 6.3.7 shows the TYPE 4 PROFILE dialog window.

Figure 6.3.7 Profile Type 4

TYPE 5

Type 5 profile is similar to Type 4 with the addition of a simple drawbar. Bar width and CB height are deactivated as shown in Figure 6.3.8.

Figure 6.3.8 Profile Type 5

TYPE 6

Type 6 profile is similar to Type 5 with the addition of a full-featured drawbar. All parameters are activated as shown in Figure 6.3.9.

Figure 6.3.9 Profile Type 6

OPERATION

The functions under the OPERATION group are used to perform input/output and viewing of the master 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 6.3.10.

Figure 6.3.10 Save Profile Parameters in the File

 OPEN

This function enables the user to open a profile file (*.prf) to import the parameters into the current master profile.

 WINDOW ZOOM

Enables the user to define the corners of the zoom window by positioning the cursor on the profile display window to zoom in a part of the profile.

 FILL

Automatically rescales the profile to fill the profile display window.

After selecting NEW to add a Master Profile, the name of the profile will be added in the MASTER PROFILE LIST window as shown in Figure 6.3.11.

Figure 6.3.11 Master Profile Operations

Select a Master Profile from the list, and click MODIFY. The program will open a PROFILE window as in Figure 6.3.2. The user may modify the selected Master Profile in this window.

Select a Master Profile from the list, and click DELETE to delete the selected Master Profile.

Note: If there is an addendum based on the modified master profile, DYNAFORM will automatically update the addendum after the master profile is modified. If a region of the addendum is based on the deleted master profile, this region will be deleted automatically.