Moldflow

Task 1: Prepare the first model

In this task you will:

         Open a model.

         Set the polymer injection location.

1.     Before you start, set the units to Metric so dimensions will be shown in millimeters. How To? 2.     Click (File Open) and select the mouse_bottom (*.adv) model ( D:\Program Files\Moldflow\Plastics Advisers 7.3\tutorial ). Ensure Plastic Adviser Files (*.adv) file is selected in the Files of type drop-down list. 3.     Click Open to continue. 4.     Click (Adviser Pick Injection Locations) and set the injection location as shown in the image below.  How To?

You have completed this task. Move on to the next task: Prepare the second model.

Task 2: Prepare the second model

In this task you will:

         Import a second model.

         Select an injection location.

         Set the location of the parting plane for the mold.

1.     Select Family in the Analysis Mode drop-down list. 2.     Click (Adviser Mold and Runner System Tools Import Part) and import mouse_top (*.adv). When prompted "Automatically re-position new cavity?" click Yes. 3.     Click (Adviser Pick Injection Locations) and set the injection location as shown in the image below. 4.     Move the two injection locations so they line up.  How To? 5.     Click (Adviser Mold and Runner System Tools Parting Plane) to open the Set Parting Plane dialog. 6.     Click Bottom to move the parting plane to the bottom of the model. 7.     Click OK.

Note: Sometimes when you import additional models, they are not imported in the right orientation or position with respect to your mold. If this happens, use (Adviser Modeling Tools) to adjust the orientation and positions of each model.

The mode of analysis you choose affects the tools available to you.

When you select an analysis mode, only the tools that you will need appear on the Adviser toolbar. For example, the Import Part tool is only available for family mold analyses. This tool is used to select one or more models to be added to the mold.

You have completed this task. Move on to the next task: Set the mold dimensions.

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Task 3: Set the mold dimensions

In this task you will set the plate thicknesses, and the mold length and width.

1.     Click (Adviser Mold and Runner System Tools Mold Properties) to open the Mold Properties dialog. 2.     Enter the following plate thicknesses: ·         A-plate: 56 mm ·         B-plate: 36 mm 3.     Set the length and width of the mold: ·         X: 196 mm ·         Y: 296 mm 4.     Click OK. 5.     Save the file as family_mold.

Note: The parting plane is the plane between the floating and B-plates.

The parting plane is always parallel to the X-Y plane, and the sprue location is always on the positive side of the parting plane. This means that you need to have the model oriented correctly before you create the mold or runner system.

To help with model orientation, make sure that the program preference Display Labeled Mold is selected.  How To?

You have completed this task. Move on to the next task: Runner system parameters.

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Task 4: Runner system parameters

In this task you will set the runner system defaults required for this mold.

1.     Click (Adviser Mold and Runner System Tools Runner System Defaults) to open the Runner System Defaults dialog. 2.     Click the Runners tab and make these selections: ·         Runner Type: Cold Runner. ·         Runner Shape: (round). ·         Diameter (1): 5 mm. 3.     Click the Gates tab and make these selections: ·         Gate Type: (submarine). ·         Start Diameter (1): 2 mm. ·         End Diameter (2): 1 mm. 4.     In the Gate length and rotation section, do the following: ·         Click the Set horizontal length manually option button. ·         Set the Horizontal lenght (L) as 3 mm. 5.     Click the Sprue tab and make these selections: ·         Sprue Type: Cold Sprue. ·         Sprue Shape: (tapered) . ·         Start Diameter (1): 4 mm. ·         End Diameter (2): 6 mm. 6.     Click OK.

Note: Any runner system sections you create after changing the runner, gate, or sprue defaults will have the new dimensions. Sections already created will not change.

You have completed this task. Move on to the next task: Generate runner system.

Task 5: Generate runner system

In this task you will set the sprue location, then generate the sprue, gate, and runners.

1.     Click (Adviser Mold and Runner System Tools Drop Point) to open the Define Sprue Location dialog. The models change to the front view. 2.     Change the X value if the cross-hair is not lined up with the two injection cones, as in the image below. 3.     Use the Apply button to check the location. 4.     Click OK when the sprue is in the correct location. 5.     In the Runner Generation dialog, select Generate Sprue, Runners and Gates. 6.     Click OK.

The sprue location is the place that the plastic enters the mold.

In this task you created the gates, runners, and sprue automatically.

It is possible to create the runners and gates manually. You can also change the size and style of runners, gates and the sprue after you have created them.

In the next task, you will change the dimension of one of the runners you have created in this task.

You have completed this task. Move on to the next task: Change runner dimensions.

Task 6: Change runner dimensions

In this task you will change the diameter of the runner on the smaller model to 4mm.

1.     Click (Display Visible Entities Injection Cones) to hide the injection location cones so that you can see the runners and gates clearly.

2.     Click (Display Banding Zoom) and zoom in on the runners.  How To?

3.     Click (Display Select) and then click on the runner connected to the smaller model.

4.     Right-click and select Properties.

5.     Set the diameter to 4 mm and click OK.

The runners you created in the last task both had a diameter of 5 mm. To balance the flow of polymer into the parts, the runners should be different diameters, since one of the parts is smaller that the other. The runner diameter of the smaller model is set to a smaller dimension to balance the polymer flow.

Task 7: Set processing conditions

In this tutorial you will select the material used to fill the mold cavity.

1.     Click (Adviser Analysis Wizard). 2.     Select Plastic Filling. 3.     Select the Prepare processing conditions only check box. 4.     Click Next >. The Analysis Resolution page is displayed. 5.     Click Next >. 6.     In the Select Material page of the wizard, click the Specific Material option button and select the following: ·         Manufacturer: Kumho Chemicals Inc ·         Trade name: HFA 700 7.     Click Next >. 8.     Set the Mold temperature to 60 deg.C. 9.     Set the Melt temperature to 240 deg.C. 10.   Click Finish. 11.   Click OK to continue. 12.   Save your model.

The Prepare processing conditions only check box on the first page of the Analysis Wizard, allows you to click Finish but not launch the analysis immediately. This feature is useful if you want to run batch analyses.  How To?

To launch the analysis, click (Adviser Analysis Wizard), select the analysis sequence and click Finish.

You have completed this task. Move on to the next task: Tutorial overview.

Task 8: Tutorial overview

In this tutorial you created a mold containing two different cavities, modeled and manually balanced the runner system used to fill the cavities. After completing this tutorial you should be able to:

         Import a second model.

         Set the dimensions for a mold.

         Set the runner system defaults.

         Automatically generate a runner system.

         Change the dimensions of a runner.

         Set processing conditions.