Advanced Sheet Metal Design Using NX Cad Challenge_6_Bracket

Advanced Sheet Metal Design- Bracket

Objective-

To design Bracket using Siemens NX CAD with Proper design methodology.

Introduction-

Sheet Metal is a Comprehensive cold working process for metal sheet (usually below 6mm), including Shearing, punching/ cutting, Folding, riveting, splicing, forming (such as car body).

Types of sheet metal

1. Galvanized steel
2. Stainless steel

Sheet metal brackets are usually designed to be mounted on a surface to carry and hold the loads.

Design Methodology-

Description-

Tools

1. Sketch- by selecting the required plane sketch is drawn by using geometrical constrains and giving desired dimensions
2. Contour Flange- this command is used to create a 3D surface by using an drawn sketch.
3. Normal cut-out- this command is used to remove material from the object by using desired sketch profile or curve.
4. Bending- as the name suggest this command is used to bend the tab along required line.
5. Flange- this command is used to create flange by using edge of TAB or BEND at an angle and length.
6. Break corners- this command is used to round the sharp edges.
7. Unbend- this command is used to unbend all the adjacent bend sides and other operations.
8. Hole- command is used to remove material from the base or required side.
9. Bead- this command is used to give additional strength to part.
10. Re bend- after doing required operation which is not possible to do in bend state, un bend command is used to bring the initial state which is required.
11. Flat Pattern- after Re bending and finishing all the operation flat pattern command is used to flat the sheet metal component which is then used for drafting purpose.

Select XY plane and create the sketch as shown in the PDF

Select the contour flange command and select the previously drawn sketch and give the required extrude length.

Select the top surface and draw the sketch as shown in the PDF and click finish.

Select the Normal cut-out option and then select the previously drawn sketch and remove the material.

Select the Break corner option and round the sharp edges as shown in the images.

Select the sketch option, select the XY plane and draw the line with the given parameters and click finish.

Select the unbend option, select one stationary face with reference to that face unbend the entire component.

Select the Bead option, select the previously drawn sketch (line) and give the all the required value as shown in the image.

Select the Re-bend option, select the entire component and reproduce the intended shape of the component.

Select the sketch command and draw the holes as shown in the image with given parameters.

Select the Hole option, using previously created sketch use it as reference to create the hole (remove material) as shown in the image.

Model Views

Front view

Side view

Top view

Isometric view

Drafting view

Conclusion

Thus by refreing 2D sketch and using Siemens NX CAD , 3D model of Bracket is created.