Moldflow

1.     Click (File Open), and select the cupholder (*.adv) model ( D:\Program Files\Moldflow\Plastics Advisers 7.3\tutorial ). How to?
In this model, the injection location is already specified.

2.     Click Open to continue.

3.     Click (Display Rotate), then click and drag to rotate the model in the display area until you can see the injection location. The injection location is indicated by a yellow cone.

4.     From the Analysis Mode drop-down list, select Naturally Balanced.
A transparent bounding box may appear around the model. The bounding box identifies the injection side of the model, which by default is in the positive Z direction. Click (Display Bounding Box) to turn the bounding box on and off. For this tutorial, it is helpful to leave the bounding box visible, as it will help identify the original cavity as you proceed through the tasks.

5.     Click (Adviser Mold and Runner System Tools Runner System Defaults) to open the Runner System Defaults dialog, and then set the runner system defaults as follows:

a.     Select the Runners tab, and make these selections:

·         Cold runner

·         Runner shape: Round

·         5 in the Diameter(1) box.

b.     Select the Sprue tab, and make these selections:

·         Cold sprue

·         Sprue shape: Round

·         5 in the Diameter(1) box.

c.     Click OK.

6.     Click (Adviser Mold and Runner System Tools Naturally Balanced Layouts).
The Naturally balanced layout dialog appears, and the display is updated to show the default naturally balanced layout. The runner segments are created in the XY plane, and the sprue extends in the positive Z direction.

7.     In the Geometry area, select the 8 cavity H-layout naturally balanced layout from the Layout drop-down list.

8.     Click OK to accept the remaining default values for the Geometry and Gates area.

9.     Click (Display Rotate), then click and drag to rotate the entire layout. Rotate the layout until the display appears similar to the image below. Note the orientation of the model cavities relative to the runner segments and to each other.

1.     Rotate the model:

a.     Click (Adviser Modeling Tools...).

b.     In the Modeling Tools dialog, select the Rotate option from the list on the left side. Select the original model in the display area to make the Rotate dialog active.

c.     In the Z: text box, enter -90, then click Apply to rotate the model -90 degrees about the Z axis. (Alternatively, click ).
The orientation of all the model cavities is updated in the display. The handle of the cupholder is now facing toward the runner segment.

d.     Click Close to accept the new orientation and close the dialog.

2.     Specify new dimensions for the runner system:

a.     Click (Adviser Mold and Runner System Tools Naturally Balanced Layouts).
The Naturally balanced layout dialog appears.

b.     In the Geometry area, click on the default Length value associated with Parameter (runner segment) p3, which is closest to the cavity. Enter 50 to decrease the length in millimeters of this runner segment. Click in any other cell of the table or press the Tab key to update the display without closing the dialog.

c.     In the Geometry area, click on the default Length value associated with Parameter (runner segment) p2. Enter 70 to decrease the length in millimeters of this runner segment. Click in any other cell of the table or press the Tab key to update the display.

d.     Click OK to accept the new values of the Parameters in the Geometry area and close the dialog.

1.     Click (Adviser Modeling Tools...).

2.     In the Modeling Tools dialog, select the Rotate option from the list on the left side. Click on the model in the display area to make the Rotate dialog active.

3.     In the Y: text box, enter 180, then click Apply to rotate the model 180 degrees about the Y axis. (Alternatively, click twice.)
The orientation of all the model cavities is updated in the display. The injection location is now oriented in the same direction as the sprue.

4.     Click Close to accept the new orientation and close the dialog.

1.     Specify a gate drop value:

a.     Click (Adviser Mold and Runner System Tools Naturally Balanced Layouts).
The Naturally balanced layout dialog appears.

b.     In the Gates area, click the Gate drops check box and enter 50 as the gate drop length.

c.     Press the Tab key to update the display without closing the dialog. Note that the model cavities are now located below the parting plane.

d.     Click OK to accept the new gate drop value and close the dialog.

2.     Set the gate properties:

a.     In the model display area, right-click on the gate drop and select Properties.
The Gate Properties dialog appears.

b.     In the Gate type area, click to specify a Sub or Conical gate.

c.     In the Gate size area:

·         Enter 5.00 in the Start Diameter (1) text box.

·         Enter 4.00 in the End Diameter (2) text box.

d.     Click OK to accept the new gate properties.

1.     To select an analysis, click (Adviser Analysis Wizard).
The Analysis Wizard dialog appears.

2.     Select the Plastic Filling analysis check box.

3.     Click Next.

4.     When the Analysis Resolution page appears, DO NOT choose to run a high resolution analysis. Click Next again.

5.     The Select Material page appears. For this tutorial:

a.     Click to select the Specific Material option.

b.     Choose Generic from the Manufacturer drop-down list.

c.     Choose PP, High-flow - Polypropylene from the Trade name drop-down list.

6.     Click Finish to accept the material selection and launch the analysis.

1.     Review the Filling Analysis summary. Note the assessment of moldability indicated by the traffic light symbol.

2.     Click Close when you have finished reviewing the summary. To view the summary at a later time, click (Results Summary...).

3.     View the Confidence of Fill plot (Results Show Confidence of Fill), which is displayed by default when the analysis is complete. In this case, there is a high confidence of fill as indicated by the uniform, green color. You should have no trouble filling all the model cavities in this layout with the selected plastic material.

4.     View the Injection Pressure plot (Results Show Injection Pressure), or select this plot from the Result Types drop-down list. Note that the pressure distribution on the model is relatively uniform and low, which is desirable.

Edit the layout:

1.     Click (Adviser Mold and Runner System Tools Naturally Balanced Layouts).
The Naturally balanced layout dialog appears. If you are prompted to save analysis results, click No.

2.     In the Geometry area, select the 32 cavity H-layout from the Layout drop-down list.
The display updates to show the new layout with its default dimensions for each Parameter. The cavity orientation and gate drop that you specified previously should be carried over to the new layout. Note that the cavities overlap.

3.     In the Geometry area, click on the default Length value associated with Parameter (runner segment) p2. Enter 150 to increase the length in millimeters of this runner segment. Click in any other cell of the table or press the Tab key to update the display without closing the dialog.

4.     In the Geometry area, click on the default Length value associated with Parameter (runner segment) p5, which is closest to the cavity. Enter 35 to decrease the length in millimeters of this runner segment.

5.     Click OK to accept the new values of the Parameters in the Geometry area and close the dialog.

6.     Set the gate properties:

a.     In the model display area, right-click on the gate drop and select Properties.
The Gate Properties dialog appears.

b.     In the Gate type area, click to specify a Sub or Conical gate.

c.     In the Gate size area:

·         In the Start Diameter (1) text box, enter 5.00 mm.

·         In the End Diameter (2) text box, enter 4.00 mm.

d.     Click OK to accept the new gate properties.

Run the analysis:

1.     Click (Adviser Analysis Wizard).
The Analysis Wizard dialog appears.

2.     Select the Plastic Filling check box from the analyis sequence list.

3.     Click Next.

4.     When the Analysis Resolution page appears, DO NOT choose to run a high resolution analysis. Click Next again.

5.     The Select Material page appears. For this tutorial:

a.     Click to select the Specific Material option.

b.     Choose Generic from the Manufacturer drop-down list.

c.     Choose PP, High-flow - Polypropylene from the Trade name drop-down list.

6.     Click Finish to accept the material selection and launch the analysis.

View and interpret the results:

1.     Review the Results Summary. On the Filling Analysis summary page, note the caution statement that appears next to the yellow traffic light symbol.

2.     Click Close when you have finished reviewing the summary. To view the summary at a later time, click (Results Summary...).

3.     Review the Confidence of Fill plot (Results Show Confidence of Fill). In this case, there is a medium confidence of fill as indicated by the uniform, yellow color of the part cavity.

4.     Review the Quality Prediction plot (Results Show Quality Prediction). In this case, the predicted quality is low as indicated by the uniform red color of the part cavity.

5.     Use the Dynamic Adviser to find out details and get advice about the Confidence of Fill and Quality Prediction results. Click (Adviser Adviser...) to access the Results Advice dialog. Note the caution statement that appears below the list of results on both the Confidence of Fill and Quality Prediction tabs. Click the More... button to get an in-depth explanation about these cautions.

Set the sprue properties:

1.     In the model display area, right-click on the sprue and select Properties (Alternatively, click (Display Select), then double-click on the sprue to open the Sprue Properties dialog).
The Sprue Properties dialog appears.

2.     In the Sprue properties area, the default Type is Cold sprue, and the default Shape is Round. For this tutorial, leave the default values unchanged.

3.     In the Sprue size area, in the Diameter (1) text box, enter 14 to increase the sprue diameter in millimeters.

4.     Click OK to accept the updated sprue properties. If you are prompted to save analysis results, click No.

Set the runner properties:

1.     In the model display area, right-click on the runner segment that is closest to the sprue and select Properties (Alternatively, click (Display Select), then double-click on the runner segment to open the Runner Properties dialog).
The Runner Properties dialog appears.

2.     In the Runner properties area, the default Type is Cold runner, and the default Shape is Round. For this tutorial, leave the default values unchanged.

3.     In the Runner size area, enter 11 in the Diameter (1) text box to increase the diameter of this runner segment.

4.     Click OK to accept the updated properties for this runner segment.

5.     In the same way, update the properties of the four remaining runner segments, entering new diameters to correspond to the values shown in the image below.

Set the gate properties:

1.     In the model display area, right-click on the gate drop and select Properties.
The Gate Properties dialog appears.

2.     In the Gate type area, click to specify a Sub or Conical gate.

3.     In the Gate size area:

·         Make sure the Start Diameter (1) text box is set to 5.00 mm.

·         Make sure the End Diameter (2) text box is set to 4.00 mm.

4.     Click OK to accept the gate properties.

Run the analysis:

1.     Click (Adviser Analysis Wizard).
The Analysis Wizard dialog appears.

2.     Select the Plastic Filling check box from the analyis sequence list.

3.     Click Next.

4.     When the Analysis Resolution page appears, DO NOT choose to run a high resolution analysis. Click Next again.

5.     The Select Material page appears. For this tutorial:

a.     Click to select the Specific Material option.

b.     Choose Generic from the Manufacturer drop-down list.

c.     Choose PP, High-flow - Polypropylene from the Trade name drop-down list.

6.     Click Finish to accept the material selection and launch the analysis.

View and interpret the results:

1.     Review the Results Summary. On the Filling Analysis summary page, note the caution statement that appears next to the yellow traffic light symbol. Note that the Actual injection pressure value is much lower than the result of the previous analysis.

2.     Click Close when you have finished reviewing the summary. To view the summary at any time, click (Results Summary...).

3.     Review the Confidence of Fill plot (Results Show Confidence of Fill). In this case, there is a high confidence of fill as indicated by the uniform, green color of the model cavity.