Advanced Sheet Metal Design Using NX Cad Challenge_2_Box Assembly

Advanced Sheet Metal Design Using NX Cad Challenge_2_Box Assembly

Objective :

The main objective of this project is

• To create sheet metal modeling of the Box Assembly using NX Cad
• To learn about the sheet metal modeling features and applications

Introduction :

Sheet metal is metal formed by an industrial process into thin, flat pieces. Sheet metal is one of the fundamental forms used in metalworking, and it can be cut and bent into a variety of shapes. Countless everyday objects are fabricated from sheet metal.

Sheet metal is used in automobile and truck (lorry) bodies, airplane fuselages and wings, medical tables, roofs for buildings (architecture), and many other applications. Sheet metal of iron and other materials with high magnetic permeability, also known as laminated steel cores, has applications in transformers and electric machines

Design methodology :

Description :

1. Creating Sketch and Tab

Tabs are used to “shake-a-part” pieces nested in sheet metal as well as to create “mini-nested” pieces for additional manufacturing processes. This is the most common shaker tab and is normally created with a rectangle or square punch.

A sketch is drawn on an XY plane with the required dimensions

2. Creating Flanges

3. Closed Corners

4. Creating Flanges

5. Creating Hems

6. Mirror Body

7. Unite

In siemens nx, Unite command used to combine the volume of two or more solid bodies into a single body. The target body and tool bodies must overlap or share faces.

8. Creating a Dimple

Dimple is used to give more strength to the part. The flat portion of the part posses less strength & rigidity. So, there are high chances of failure in the part. The Dimple adds strength & rigidity to the part also reduces the chances of failure

9. Creating Beads

10. Unbend and Rebend

11. Creating Hem

12. Creating A new base Tab

13. New Tab (side) and Break Corner

14. Creating Flanges and Hem

15. Unbend, Normal cutout and Rebend

16. Mirror Body

17. New Tab (Top face) and Break Corner

18. Creating Flanges and Hem

19. Unbend, Normal cutout and Rebend

20. Completed - Box Assembly

Drafting

Drafting is a vital tool that allows users to add to their work instructions, hold associativity, and create full prints of tooling and fixturing. New capabilities in NX 12 allow for the jump to drafting from manufacturing while in previous versions of NX, you could only jump to drafting from modeling or assembly.

Box Assembly Views

Conclusion

• Sheet metal modeling of the Box Assembly is successfully created.
• Understood the NX Cad sheet metal features and its application.