Advanced Sheet Metal Design Using NX Cad Challenge_2_Box Assembly

BOX ASSEMBLY

 

OBJECTIVE:-

To design a ‘BOX CASING’ using Siemens NX Sheet metal Application.

INTRODUCTION:-

In this challenge, by using NX sheet metal application design the BOX ASSEMBLY by using various tools like tab, normal cut out, bend, break corner, dimple, hem flange, unbend, re bend, mirror feature, closed corner, break corner etc.  

DESIGN METHODOLOFY:-

1. Make a rectangular sheet metal using Tab button.

2. Four different flanges on TAB.

 

3. Make two closed corner.                                                             

    

4. Make 4 Flanges.

5.Make open loop hem flanges as displayed in below picture.

6.Mirror the work part on YZ plane and unite the body as a single body.

7.Make a dimple on a sheet metal and then mirror it about XZ plane.

8.Make a dimple on another face and then again unbend and re bend the assembly.

9.Make a bead and then mirror it as shown in the figure.

10.Make the 4 hem flanges on border of the box as shown in the pic.

11.Make the datum plane and tab on the surface.

12.Make the 4 flanges on the border of the tab.

13. Make the tab on the surface and break corner on the tab.

14.Make two flanges on tab as shown in figure.

15.Make the hem flange, unbend, normal cutout, rebend and mirror the feature as shown in pic.

16.Make a tab then break corners of tab and then make a flange on it.

17.Make open loop hem flange and make outside bend.

18.Make normal cutout and rebend as shown in pic.

Description:-

1. Tab: - Use this command to create a base feature by extruding a sketch along a vector by thickness value, or by adding material to existing faces & bend regions of a sheet metal part.
2. Normal Cut out:- Use the Normal Cut out command to cut material by projecting a sketch onto the model and then cutting perpendicular to faces intersected by the projection. We can use planar sketches or 3D curves to specify the section for the normal cut out.
3. Bend:- We generally use this command to turn a sheet metal in various angle.
4. Flange:- Use this command to add a flat flange at an angle to a planar face and add a bend between the two. Bend consists of a two region
5. BEND 2. WEB
6. Break Corner:- Use the break corner command to round or chamfer sharp corners of a tab or flange.
7. Unbend:- Usethe Unbendcommands to unbend and rebend non-uniform thickness bends. 
8. Bead:- Use the bead command to lift material along the contour of a sketch that simulates a stamping tool. Beads can also be created to stiffen sheet metal part.
9. Rebend:- Usethe Rebendcommands to unbend and rebend non-uniform thickness bends. 
10. Hem Flange:- Use this command to add various curly shape on edges of the sheet metal model, the thickness are same as the sheet metal model.

 

Various views in CASING DESIGN:-

1. Top view:-

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2. Isometric View:-

3. Bottom view:-

4. Front View:-

5. Right Hand Sided View:-

7. Studio View:-

 

Conclusion:-

By using various commands in sheet metal design of BOX ASSEMBLY is created by various features.