Advanced Sheet Metal Design Using NX Cad - Bracket

ADVANCED SHEET METAL DESIGN OF BRACKET USING SIEMENS NX CAD

OBJECTIVE:

• To design a sheet metal bracket using Siemens NX Cad.
• To create a drafting of the same part in A4 sheet.

INTRODUCTION:

Sheet metal is a metal formed by an industrial process into thin, flat pieces. Sheet metal can be cut and bent into a variety of shapes. Countless everyday objects are fabricated from sheet metal.

NX formerly known as "unigraphics", is an advanced high-end CAD/CAM/CAE software. NX Sheet Metal provides a set of tools within the NX design environment that allows for simple and fast design of sheet metal parts.

DESIGN METHODOLOGY:

DESCRIPTION:

Tools used & their functions:

SKETCH: It is used to create a profile

CONTOUR FLANGE: It is used to create a flange by extruding a sketch along a vector or by sweeping a sketch along an edge or chain of edges. NX adds bends automatically using the default bend radius value.

UNBEND: It is used to unbend the sheet metal by taking any one face as a stationary face.

REBEND: It is used to rebend the sheet metal.

BEAD: It is used to lift material along the contour of a sketch.

FLAT PATTERN: It is used to create a 2D representation of the flattened 3D sheet metal part.

NORMAL CUTOUT: It is used to cut material by projecting a sketch onto the model and then cutting perpendicular to the faces intersected by the projection.

HOLE: It is used to create a hole of various types in the part.

BREAK CORNER: It is used to round or chamfer sharp corners of a tab or flange.

Order of Usage of tools:

• The sheet metal preferences are set as required.
• The required sketch is drawn in the XZ plane.
• A CONTOUR FLANGE is created from the sketch.
• NORMAL CUTOUT feature is used to cut a portion of the sheet metal.
• BREAK CORNER tool is used to create a smooth edge at the sharp corners.
• UNBEND tool is used to flatten the sheet metal.
• BEADS are added to the sheet metal.
• REBEND tool is used to bend the whole sheet metal.
• After rebending, SIMPLE HOLES are created in the sheet metal.
• Finally, the FLAT PATTERN tool is used to create a 2D representation of the flattened 3D sheet metal part

STANDARD VIEWS:

• FRONT VIEW:

• TOP VIEW:

• SIDE VIEW:

• BOTTOM VIEW:

• ISOMETRIC VIEW:

• DRAWING SHEET:

• FEATURE TREE:

CONCLUSION:

Thus the sheet metal bracket is successfully designed using Siemens NX Sheet metal Workbench.