Advanced Sheet Metal Design Using NX Cad Challenge_5_Odd Shaped Enclosure

                                                                                  Modelling an Odd Shaped Enclosure in NX Sheet Metal

OBJECTIVE         

                  The objective of the project is to design a sheet metal odd shaped enclosure using Sheet metal application in Siemens NX and a drawing sheet needs to be drafted for the designed model using drawing application in NX.

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.

Design Methodology

                                                

TOOLS AND FEATURES USED ON SHEETMETAL TO DESIGN ODD ENCLOSURE

 

1. Sketch
2. Extrude
3. Flange
4. Unbend
5. Hole
6. Bead
7. Re bend
8. Drafting
9. Base view

TOOL AND FEATURE DESCRIPTION

 

1. SKETCH

         It is a 2d representation of a 3d part. It includes entities like line, rectangle, spline, circle, etc. It is a predetermined drawing with dimensions and relations.

2. EXTRUDE

        The sketch is extruded to some distance and results into a solid body.

3. FLANGE

        It is created with one or more edges at specified location. The minimum flange length must be at least four times the thickness of the sheet metal. Bend radius is equal to the

        sheetmetal thickness.

4. UNBEND

        It makes the part unbend, that is all the features done are made flat. This is useful while sketching on the corners and bend areas.

    5. Holes

        Holes are added to provide alignment to enclosure. NX provides whole feature has options like general type, counterbore, countersink, etc.

        Position, Diameter and depth are important inputs to apply hole to a body. 

   6.BEAD

       It lifts material along the sketch. it strenghthen the product also increases the flex.

   7.REBEND

       This command puts back all the bends already created also along with new features included while in unbent state.

   8.DRAFTING

     This command is to have 2D drawing of the sheet metal part created.

   9.BASE VIEW

     It specifies the location, orientation, view and scale of the part for drafting.

                                                                             Odd Shaped Enclosure

                                                                                  (MODEL VIEWS)

Front View

                                            

Side View

                                           

Top View

                                           

Isometric View

                                          

   DRAFTING (Drawing Sheet)

                    It is refers to creating technical drawing that communicate about dimensions, view of component geometry and other features that performed over part in 2D or 3D. The draft of drawing is prepared which include annotation, dimension, relations, etc. which helps to a person from manufacturing or production department about component.

Conclusion

                       The sheet metal Recommended workflow to create enclosures with odd shapes or angles is successfully completed in NX_Cad.