Advanced Sheet Metal Design Using NX Cad Challenge_5_Odd Shaped Enclosure

A REPORT ON
Designing a 'Sheet Metal part for odd shapes' using Siemens NX Sheetmetal Application

Etikala Surajkumar
Mechanical

CONTENTS

OBJECTIVE
INTRODUCTION
DESIGN METHODOLOGY/APPROACH
DESCRIPTION
3D VIEWS OF SHEETMETAL PART
DRAWINGS OF SHEET METAL PART

OBJECTIVE

The main objective of this project is to Design a 3D model of an Sheet Metal part with odd shapes using Siemens NX Sheetmetal Application

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.

DESIGN METHODOLOGY

DESCRIPTION

FEATURES USED

SKETCH - LINE, RECTANGLE, CIRCLE, STUDIO SPLINE, POINT

Sketch is a 2D drawing used to create a 3D part. In the sketch there are many tools like Line, Rectangle, Circle, Point, etc.. required to create a complete drawing.

EXTRUDE

Creates a 3D solid from a 2D drawing that encloses an area.

SHEET METAL FROM SOLID

Sheet metal from solid is use to build a sheet metal model that takes its shape from a collection of planar faces.

FLANGE

sheet metal flange command use to add a flat flange at an angle to a planar face.

JOG

Jog is the command used to create a offset or a step in tab. It creats a jog by lifting the material on the one side of the jog line and adding a flange between the two sides.

UNBENDING

Unbending command is used to create a flat sheet metal piece of the whole part.

HOLE

hole command use to create a hole on one or more solid bodies in a part.

BEADS

Bead command is used to create an indentation in the sheet metal part using a sketched section as the bead out line.

REBENDING

Rebending command is used to bend the flat sheet metal part appered after the unbending process to get back into original shape.

FLAT PATTERN

Flat pattern feature is used to create a flat sheet metal piece of the 3D modeled part, so that it can assure that the 3D sheet metal part to be created can be Manufactured.

DRAFTING

It is the 2D drawing of the flat pattern with the complete detailes of the Features applied on the sheet metal to make a 3D part.

STEP BY STEP PROCESS

First the sketch is prepared by drawing a Trapezium in XY plane as shown in figure below.

Then the above sketch is extruded up to 200mm.

Now a Sheet metal box of above solid is created by using the feature called Sheetmetal from solid.

Now at one side a flange is created of length 20mm.

A JOG is created on another side of the sheet matal part.

UNBENDING

Adding BEADS and HOLES

REBENDING

FLAT PATTERN and DRAFTING

Here is the final 3D model of sheet metal part

VIEWS

DRAFTING

CONCLUSION

Hense the 3D model of an Sheetmetal part with odd shapes is created using Siemens NX Sheetmetal Application.