Challenge

Advanced Sheet Metal Design Using NX Cad Challenge_2_Box Assembly

HHarishanth U13 Jan 2023

NX-Box Assembly

Aim:

To create Sheet Metal Component with Sheet Metal modelling tools applied throughout the modelling using NX.

Introduction:

In this we are going to create sheet metal Box Assembly step by step using seimens NX sheetmetal applicatiion.

Design methodology:

Tab -> Flange -> Closed corner -> Flange -> Hem Flange -> Mirror body -> Unite -> Dimple -> Mirror feature -> Dimple -> Bead -> Hem Flange -> Datum plane -> Flange -> Tab -> Flange -> Tab -> Flange -> Break corner -> Flange -> Hem Flange -> Unbend -> Normal cutout -> Rebend -> Mirror body -> Tab -> Break corner -> Flange -> Hem Flange -> Unbend -> Normal cutout -> Rebend.

Procedure:

Step 1: Tab

Start Nx and create new file then the first step is to draw a sketch rectangle of length 200mm and width 150mm and exit sketch.
Edit design parameter Menu -> parameters -> sheetmetal change the global value to 1mm and click ok.
Then click tab button button for creating first sheet metal model.

Step 2: Flange

Click the flange button use the length as 200 and select the outside edge as shown apply the same on the other side of the tab to obtain the final result as shown.

Step 3: Flange

Click the flange button use the length as 70mm and select the outside edge as shown apply the same on the other Flange to obtain the final result as shown.

Step 3: Closed Corner

Click on the closed corner button and select the edge to apply.

Step 4: Flange

Click the flange button use the length as 0.002 andbend radius as 0 select the inside edge as shown apply the same on the other Flange but this time select the outside edge to obtain the final result as shown.

Now select the flange button again and then again repeat the same procedure but on the previous flange with length of 6.5 and bend radius as 0.5.

Step 5: Hem Flange

Click the Hem flange button use the length as 5mm and select the outside edge as shown apply the same on the other Flange to obtain the final result as shown.

Do the same on other flange as shown.

Step 6: Mirror body

Now a half body is created so we need to mirror them to have a full box so use command finder to get mirror body feature then select the YZ plane as reference to mirror do as shown.

Step 7: Unite

Eventhough we mirrored the body won't be a single unit so we are gonna make them to be by using the unite option

Step 8: Dimple

Then create a sketch and make a dimple

Select the dimple button and give the value as shown.

Step 9: Mirror feature

Its different from mirror body it simply mirror the feature so mirror the dimple on the other flange as well.

Step 10: Dimple

Then create a sketch and make a dimple , Select the dimple button and give the value as shown.

Step 11: Bead

Click on the bead button from the more option in punch then sketch the circle and give the value as shown.

Step 12: Hem flange

Now use hem flange option to fold the edges of the box as shown.

Step 13: Datum plane

To create a lid we need a plane on top to create a sketch and design them so click on datum plane option then do as shown.

Step 14: Tab

First create a sketch on the datum plane as below.

Then use the tab option to create a lid.

Step 15: Flange

Click the flange button use the length as 3mm and select the outside edge as shown apply the same on the other side of the tab to obtain the final result as shown.