Advanced Sheet Metal Design Using NX Cad Challenge_6_Bracket

Objective:

The main objective of this project is to design the Create ‘Bracket’ from the 2d Drawing in NX Cad in sheet metal application.

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. Thicknesses can vary significantly; extremely thin sheets are considered foil or leaf, and pieces thicker than 6 mm (0.25 in) are considered plate steel or "structural steel".

Sheet metal is available in flat pieces or coiled strips. The coils are formed by running a continuous sheet of metal through a roll slitter.

                                    Forming Process

1. Bending                                         11. Photochemical machining
2. Curling                                           12. Perforating
3. Decambering                                  13. Press brake forming
4. Deep drawing                                 14. Punching
5. Expanding                                     15. Roll forming
6. Hemming and seaming                    16. Rolling
7. Hydroforming                                 17. Spinning
8. Incremental sheet forming               18. Stamping
9. Ironing                                          19. Water jet cutting

• Laser cutting                                  20. Wheeling

                                                    Applications

• Automotive Industries
• Construction Industries
• Oil & Gas Industries
• Aerospace Industries

Design Methodology:

 Description:

The sheet metal Create ‘Bracket’ from the 2d Drawing has been done with the above flow chart process. In the NX Cad using default thickness, bend radius, relief depth & width values are set to 3 mm

2D Sketch:

                   2D Sketching in Drawings. You can create drawing geometry using 2D sketched geometry only, without reference to existing models or assemblies. ... When you drag a sketch point in a drawing, it snaps or infers to other sketches, drawing views, blocks, and items in the sheet format

Contour flange:

Creates a base feature by extruding a sketch along a vector, or adds material by sweeping a sketch along an edge or chain of edges.

2D Sketch:

                   2D Sketching in Drawings. You can create drawing geometry using 2D sketched geometry only, without reference to existing models or assemblies. ... When you drag a sketch point in a drawing, it snaps or infers to other sketches, drawing views, blocks, and items in the sheet format.

Normal Cut out:

The command is used to cut the material on the exists sketch on the plane.

Break corners:

This command is used to create the round/fillet the sharp corners.

Unbend:

This command is used to unbend the sheet metal. The punching & drilling operation can be performed by only flat planes only.

Bead:

This command is used to create a long drawn out impression ,which is impressed to increase the stiffness in the sheet metal part.

Re-bend:

After finish all these operations then we should to re-bend the un-bended parts.

Holes:

In the Hole feature we can select the points and type requirement we need it.

Flat pattern:

This  is used to create the flattened sheet and prepare the model of manufacturing process.

Front view:

Side view:

Back view:

Isometric view:

Conclusion:

The sheet metal Create ‘Bracket’ from the 2d Drawing is successfully completed in NX Cad.