DYNAFORM 5.9.
4 Training Tutorial
Trim Line Estimation
Descriptions for trim line estimation function of Mstep
I. Open and Save the Database
1. Start up Dynaform 5.9.4.
2. Click FileOpen and select
\Tutorial_3_triming_line_estimation\MSTEP_Model3.df file.
3. Click FileSave As (See Figure 3).
4. Enter MSTEP_Model3_(user name)_(date).df as the file name.
5. Click Save to save the database.
6. The data model is shown in Figure 5. In the file of this case, there are meshed
models, products, flanges and formed CAD surfaces.
I. Open and Save the Database
Figure 1
Figure 2
I. Open and Save the Database
Figure 3
Figure 4
I. Open and Save the Database
Figure 5
II. Check Part in Database
1. Click PartsTurn on to display four Parts in the database: DIE1, DIE2,
PRODUCT1 and FLANGE.
2. Toggle on Only Select On option and click on DIE1 and DIE2 respectively. As
shown in Figure 6~9, a complete drawing die face is composed of DIE1 and DIE2.
3. Click PRODUCT1 and FLANGE respectively. As shown in Figure 10~13, we can
see that the product after flanging is composed of PRODUCT1 and FLANGE.
FLANGE is the flanging part.
4. Toggle off Only Select On option and simultaneously open DIE2 and FLANGE. As
shown in Figure 14, Flange, which is counted from the die fillet of DIE2, share the
same boundary line with DIE2. This boundary line will be defined as constraint in
the subsequent operation.
II. Check Part in Database
Figure 8
Figure 6 Figure 7
Figure 9
II. Check Part in Database
Figure 12
Figure 10 Figure 11
Figure 13
II. Check Part in Database
Figure 14
III. Mesh Check and Repair
1. Toggle off Surface.
2. Select UserSetup -> Preprocess (See Figure 15).
3. Select Model Check/Repair and Click Boundary Display icon（the second icon
in the first row）(See Figure 16).
4. Toggle off Elements and Nodes.
5. Click (free rotation) to rotate the model.
6. Click (clear highlight) to make sure that each part only has one complete
boundary line (See Figure 17 and 18).
7. Click to display the model in isometric view.
8. Click Auto Plate Normal icon (the first icon in the first row) (See Figure 16).
9. Select CURSOR PICK PART to move the cursor to select an element on the
model.
10. Select Yes to make sure the mesh normal direction of each part is consistent.
11. Click Exit to dismiss the dialog box.
12. Click OK to exit Model Check/Repair dialog box.
III. Mesh Check and Repair
Figure 17
Figure 18
Figure 15
Figure 16
IV. Trim Line Module and Parameter Setup
1. Click BSE Unfold Trim Line to enter MSTEP solver. Click Sheet button (See
Figure 19).
2. The New BSE Project dialog box will be displayed (See Figure 20). Click OK to
enter Tool Preparation (BSE) interface. Click Define Tool button (See Figure 21).
3. Click Undefined button in the displayed Define Sheet window (See Figure 22).
4. Select FLANGE as the corresponding part of blank then click OK to exit Select
Part window (See Figure 23).
5. Click Exit to exit the Define Tool dialog box (See Figure 24).
6. Click the BLANKMAT button to display the Material window (See Window 25).
7. Click Material Library button to display (See Figure 26 and Figure 27).
8. Select material: DQSK (See Figure 27).
9. Click OK button in Material dialog box (See Figure 28 and Figure 29).
10. The word BLANKMAT is changed to DQSK, which indicates that the material
parameter definition is completed (See Figure 30).
11. Define the sheet Thickness: 1.2 mm (See Figure 30).
12. Click OK to exit the Define Sheet window, the program will automatically go to Tool
Preparation (BSE) window (See Figure 31).
IV. Trim Line Module and Parameter Setup
Figure 19 Figure 20
IV. Trim Line Module and Parameter Setup
Figure 22
Figure 23
Figure 21
IV. Trim Line Module and Parameter Setup
Figure 24 Figure 25 Figure 26
IV. Trim Line Module and Parameter Setup
Figure 27 Figure 28 Figure 29
IV. Trim Line Module and Parameter Setup
Figure 30
Figure 31
IV. Trim Line Module and Parameter Setup
Continued…
13.Click Curve Binder button in the Tool Preparation (BSE) window and click
Define Tool button (See Figure 32) .
14.Click DIE2 and click OK to exit Select Part window (See Figure 33).
15.Click Exit to exit Define tool window (See Figure 34).
16.Click Exit in the displayed Tool Preparation (BSE) window (See Figure 35). The
program will automatically return to Unfold Trim Line window, the color of Sheet and
Curve Binder changes from red to green (See Figure 36).
17.Click Advanced button in Unfold Trim Line window (See Figure 37).
18.Toggle on Feature Line and click Exit button to exit Advanced window (See
Figure 38).
IV. Trim Line Module and Parameter Setup
Figure 34
Figure 33
Figure 32
IV. Trim Line Module and Parameter Setup
Figure 36
Figure 35
IV. Trim Line Module and Parameter Setup
Figure 37
Figure 38
V. Start up Mstep Trim Line
1. Click Run button on the Unfold Trim Line window to run MSTEP solver (See
Figure 39).
Figure 39
VI. Analyze Calculation Result
After the MSTEP calculation is completed, DYNAFORM will automatically read in
the computed sheet blank unfold outline and add it to a new part. There are two
more parts in this case: OUTLINE is the trim line unfolding to the drawing surface
as shown in Figure 40 and Figure 41; SURFBDLN is the trim line with boundary
line of the original flanging surface as shown in Figure 42 and Figure 43.
VI. Analyze Calculation Result
Figure 40 Figure 41
VI. Analyze Calculation Result
Figure 42 Figure 43
