NX Sheet Metal Tutorial-2

The figure shows a sheet metal model created by NX Sheet Metal Application.

The sheet metal model in the figure has a 10mm thickness and 10mm bending radius. That’s because before starting the sheet metal model open the “Sheet Metal Preferences” and change the “Material thickness” and Bend Radius” to 10mm.

To create this model:

1. Start the sketch command.
   • Create a “Sketch” on the x-y plane.
   • Draw a rectangle in the sketch as shown in the figure.
   • Exit from the sketch.
     
2. Start the “Tab” command.
   • Select the created sketch to create a base tab.
   • Click “Ok” 
     
3. Start the “Flange” Command.
   • Select three edges on the model.
     Select the middle edge first, then select the near edges.
   • Set the “Length” value to 100mm.
   • Click the “Ok” button to create three flanges on the tab.
     
4. Start the “Closed Corner” command.
   • First, select the middle bend then select the near bend. (If your model is not the same as the figure change the “Overlap” option to “Side 2”)
   • Change the settings of the;
     1. Gap: 1mm
     2. Diameter: 10mm
     3. Offset: 10mm
   • Click the “Apply” button.
     The changes will be applied to the model and the same command will be restarted again.
     
   • Select the middle bend and select another bend.
   • Rearrange settings and click the “Ok” button to create the second closed corner.
     
5. Start the “Break Corner” command
   • Select the edges as shown in the figure.
   • Set the method to “Chamfer”
   • Set the Distance to 70mm.
   • Click the “Ok” button.
     
6. Start the “Sketch” command.
   • Select the top face of the base “Tab”.
     
   • Draw a rectangle. The dimensions are shown in the figure below.
     
7. Start the “Normal Cutout” command.
   • Select the sketch created in step 14.
   • Change “Limits” to “Through All”
     The preview will be seen on the graphics window.
   • Click “Ok” to create a cutout.
     
8. Start the “Sketch” command.
   • Select the front face of the Flange as shown in the figure below.
     
   • Draw a rectangle as shown in the figure below.
     
9. Start the “Normal Cutout” command.
   • Select the sketch created in step 14.
   • The preview will be seen in the graphics window.
   • Click “Ok” to create a cutout.
     
10. Start the “Break Corner” command.
    • Set the Method to “Blend”.
    • Set the radius value to 11mm.
    • Select cutout edges as shown in the figure.
    • The preview will be seen in the graphics window.
      
    • Click the “Ok” button.

Note: If you want, you can create welding details for the sheet metal model. For this operation, you should activate the “Modeling” application and then turn back to the “Sheet Metal” application.

1. Activate the Modeling application. (Press “m” on the keyboard)
2. Start the “Chamfer” command.
   • Select the edges as shown in the figure.
     
3. Reactivate the “Sheet Metal” application. (Ctrl+Shift+m)
4. Check the sheet metal by using the “Unbend” command. (Always check the model, if you used any command out of the Sheet Metal Application. It is a good method to use the bend command to check the sheet metal model.)
   • Start the “Unbend” command.
   • Select all bends in the model.
   • The opened sheet metal preview will be seen in the figure.
     
5. If it is ok, press the “Esc” key to exit the command.