Advanced Sheet Metal Design Using NX Cad Challenge_2_Box Assembly

Sheet metal box assembl

• Aim:We need to design the "sheet metal box assembly" using Nx sheet metal application.
• Inroduction:We will design the sheet metal box assembly using Nx sheet metal application.
• Procedure:

1. Firstly we need to open the Nx software and then save the file as Nx sheet metal box assembly samarth vernekar.
2. Then create a tab where one of its side is overlapping on the y-axis(T=1,L=200,W=150mm).
3. Next we need to create a flange on both the left and right side(L=200mm).
4. Then we need to create flange on both the created flanges as shown in the figure(L=70mm).
5. Then we need to close the corners adjcent to the created flange with close corner option.
6. Then create the flange of approx 0.0019mm length and add another flange inwards of the box(L=6.5mm).
7. Repeat the above steps on other flange creating flange outwards.
8. Then create the hem flange on both the flange created inwards and outwards as shown(L=5mm,adjust dimension).
9. Using the mirror option select the whole created body and select the y-axis and create same body.
10. Then use the unite option and then unite both the bodies.
11. Then we need to create the dimple on both the longest faces as shown in the figure(depth=2mm).
12. Then using the mirror option create the same dimple on the other side.
13. Create the dimple in the bottom face of rectangular shape with 10mm each bent corner(depth=2mm).
14. Then try to unbend and rebend the created body.
15. Next we need to create the bead on every corner of the bottom face as shown in figure(D=5mm).
16. Then create the hem flang on the open top edges as shown in figure.
17. Then we need to create the datum plane parallel to the XY plane(L=203mm) and then create the tab for the box by taking the edges of the box created as the referance.
18. Leaving the curved edges create a flange on the other parts of the edges(L=3mm).
19. Then create the rectangular tab on the on front side of the box as shown(L=55mm,b=20mm).
20. Then break the corner by 10mm radius at bottom left corner.
21. Create a flange on upper edge of 4mm length at 40 degree angle and creating the flange to the same edge of the created flange of same dimension.
22. Then creating the hem flange on the flange created(open loop,5mm bend radius,325degre sweep).
23. Then unbend and flange and hem flange created and the devide them into four equal parts of 14 mm width and by using normal cutout option cut the faces.
24. Then rebend the unbend parts and the use mirror option and then create the same face on other side as shown.
25. Then create the tab of 1mm thickness on the top of the lid created connected to the right corner of bent corner.
26. Then create the same flange and hem flange as created above.
27. Finally we need to create the equal parts in the hem flange and by using the normal cutout option we need to cut the parts as per sketch.
28. Then rebend the unbent part.

• Conclusion:Finally with help of Nx sheet metal application we created the sheet metal box assembly.