Challenge

Advanced Sheet Metal Design Using NX Cad Challenge_2_Box Assembly

BBalasubramanian Ar18 May 2023

BOX ASSEMBLY DESIGN

OBJECTIVE:-

To design a sheet metal Box Assembly in UG NX with suitable commands to achieve the final product as per the given inputs.

INTRODUCTION:-

To create a new cad part we need to open NX and select New to create the new part file, its type and its location where it needs to be saved.

By referring to the given inputs and using Sheet metal modelling commands we need to model the cad.

DESIIGN METHODOLOGY/APPROACH:-

Created a new file in NX cad

By Selecting the XY Plane a Sketch has drawn

Tab is created with the Sketch

Flanges & Hem for those created Flanges has done

Bead and dimple is done

Mirrored the body and United

Lid for the Box is Created

Hinge is created in box as well as in lid

Flat pattern for Box is Created

DESCRIPTION:-

Sketch:- It’s a basic command to draw 2d models.

Tab:- A command to add parameters of a Sketch

Creating flange on both ends for 200mm.

Also creating 2 flanges in one end of the flange which created before.

Creating closed corner between tab and flange

Building Flanges for connecting.

Open HEM flange created for connecting the end flanges.

DIMPLE:-

It is a projection command of a particular shape with reference to a sketch with a certain depth.

In this depth is 2mm.

BEAD:- It is also the type of projection to deform the shape at a certain point with reference to the sketch and also gives strength to the material.

Body mirrored and a dimple is added at the bottom.

A small Hem is created in all sides except the back side(marked in red)

Till this the box is completed.

Now starting with Lid

Created a sketch with outline of the box and created a tab.

Lid flange has made like seating on the box flange and small portion of front flange center is removed due to interferance with box Hem.

Done with lid.

Now I made Hinge which is attached with Box.

HEM WITH OPEN HAS DONE.

Unbended and created Normal cutout and Rebended.

Mirrored on Other side.

DONE WITH BOX HINGE

NOW STARTING FINAL PART LID HINGE

As Box hinge Similar Process and commands are used to Lid Hinge also.

FLAT PATTERN:-

To show the blank size by unbending all flanges. This command is used to add a view in 2D which we can use in Drafting.(refer below image Flat pattern)