Advanced Sheet Metal Design Using NX Cad Challenge_6_Bracket

Create ‘Bracket’ from the 2d Drawing in NX Cad

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
10. Laser cutting 20. Wheeling

Applications

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

Design Methodology:

Sketch on the selected plane(x, y)

Add the feature contour flange

Sketch on the selected plane(x, y)

Adding feature like normal cut out

Break the corner points

un-bend the flanges into flat plane

Adding the feature bead

Re-bend the flanges into original position

Make the sketch and add the hole feature

Creating flat pattern for Drafting and manufacturing process

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:

Top view:

Isometric view:

Bottom view:

Conclusion:

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