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NX 11 Sheet Metal for Aerospace Applications


NX 11 features sheet metal capabilities that are particularly helpful to those of you who work in the aerospace industry. In this tutorial, Sam Kuan shows you how to create a leading edge rib in the tail of an aircraft by using Advanced Flange, Joggle, and Lightening Holes.

 NX 11 Aerospace.jpg


To begin, we have a tail section of an aircraft in which there are two major subassemblies. Our job today is to go in and create the second leading edge rib.



 This particular rib already has a kind of starting point in place. We want to make this design similar in features to that of the leading edge rib above it. Use the QuickPick selector to drill down into the detailed design of the geometry for what will eventually become our second leading edge rib. Use the WAVE Geometry Linker to establish a link between that and the back and sidewall geometry.  


NX 11 Aerospace 3.jpg


Once that information is captured, we are ready to create some flanges around the rib. Open the Advanced Flange command, and select the edge and reference face to determine where the flange will appear. Notice how NX creates the flange almost instantly based on our captured information. Perform the same work on the opposite side to create a second flange.


NX 11 Aerospace 4.jpg


With both flanges created, you can now hide some of this additional geometry to clean up the area and get a better view of what you’re working on. Leave the sidewall though, as we will need this for the next steps.


Now we will create a joggle using the Joggle command. Select the face and specify the start plane, taking care to reverse the direction of the vector. Hit apply to create the joggle. Repeat the steps to create a joggle on the other side. You could also use the Mirror Feature command to the same effect, but since the Joggle dialog is already open, it is faster this way.


NX 11 Aerospace 5.jpg


We no longer need the sidewall to be visible, so before we move to the next step, go ahead and hide that geometry as well.


Next up we have to create lightening holes. Lightening holes typically serve two purposes: they either reduce the weight of the part or they give through-access. In the example shown here, there is an existing sketch that outlines where these holes should go, but if not, you can easily create your own using the circle tool in the NX Sketcher. Open the Lightening Cutout dialog and select the curve then hit apply. If you need to adjust the parameters for the holes, you can do so in the Lightening Cutout dialog. For the purposes of this example, those inputs have already been selected.


NX 11 Aerospace 6.jpg


Now let’s bring that leading edge rib geometry back into the context of the assembly. We see that we have successfully utilized the aerospace flange, joggle, and lightening holes to create this leading edge rib on the tail end of our aircraft.


Watch Sam Kuan demonstrate this workflow step by step when you watch the NX Quick Tips video below!


(view in My Videos)

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