Objective:

1. The wholesome purpose of this project is to design a complex-shaped bracket by reading the 2D drawing of the same and preparing the 3D-based geometry of the bracket.
2. To get knowledge of how to read the 2D drawing which dimensions to be considered use different views to get an idea about the final product,also the application of sheet metal features available in NX-CAD.

Introduction:

In this project,Idesigned a bracket that is a sheet metal part using NX-CAD PLM Software version 10.0.Ihave explained all the tools and features wh ich are used in this sheet metal part modeling such as tab, flanges,bead,bend,break corner, hole,etc.

NX-CAD software can be used for both solid modeling and sheet metal modeling,but the features it provides for sheet metal are very handy and feasible to use for the design of complex sheet metal parts.

NX-CAD is a software developer by Siemens,it is a very powerful tool with parametr ic modeling features for ease and accuracy to model your parts,Siemens NX software is a flexible and powerful integrated solution that helps you deliver better products faster and more efficiently. NX delivers the next generation of design, simulation, and manufacturing solutions that enable companies to realize the value of the digital twin.

Design Methodology of Bracket:

Sheet metal as our working environment:

Features used in the design of the Bracket:

• Sketch This the basic or common feature use in any type of modeling but it plays a vital role as it is the foundation of our part mode NX-CAD provides severalsketch entities and tools for creating sketches such as line,arc,rectangle,spline,circle,ellipse,polygon,etc. In the case of our bracket, I have used sketch entities like rectangle,line,arc.

• Contour Flange: This is used to create a base feature by extruding the sketch along a vector or it adds materialalong the edge or chain of edges of the sketch by using this feature many complex shapes can be easily created by just creating the sketch of the edge and extruding

• Normal Cut-Out: This feature cuts or removes materialfrom an existing solid body by projecting the sketch along with the model and then cuts perpendicular to the faces which intersect the projecting sketch.

• Break Corner: It rounds or breaks the sharp corner of the tab created thereby providing a smooth round profile to the corners, it is been provided to give aesthet ic look to our part but furthermore its main function is to provide safe and easy handling.

• Unbend:It is used to create a f lat sheet of our sheet metal model,it does by unbending the bend and material adjacent.

• Bead:It lifts material along a contour of the sketch thereby acting like a stamping.

• Rebend:It again restores the bends given to the model previously and any other features added to the model after unbending.

• Hole:It is used to create single or multiple holes by just providing the position of points at which the holes are to be generated of the required si we can also create specialholes such as counterbore or counter.

Different views of bracket:

Front view:

Top view:

Side view:

Isometric view:

Drawing sheet:

Conclusion:

Hence,Ihave completedthe designof the bracket from the 20 drawing provided and gain knowledge of how to useand apply the different featuresof sheet metal inNX-CAD software.