Advanced Sheet Metal Design Using NX Cad Challenge_1_Casing Design

CASING DESIGN USING NX CAD

OBJECTIVE:

• Designing sheet metal component using NX CAD.
• Drafting of designed sheetmetal component.

INTRODUCTION:

The sheet metal is a simpl metal formed into thin and flat pieces .It is one of the fundamental forms used in metalworking and can be cut and bent into a variety of different shapes.

The NX CAD is formerly known as unigraphics is an advanced high end CAD/CAM/CAE software which has been owned since 2007 by Siemens PLM software.

DESIGN APPROACH:

DESIGN METHODOLOGY:

DESCRIPTION OF TOOL /FEATURES USED TO CREATE CASING DESIGN

Tab:

Creates a base feature by extruding the sketch along a direction by a thickness value or by adding material to existing faces and bend regions of sheetmetal parts.The tab acts as a base feature upon which the bend,flange,hem etc are created.

Normal cutout:

Cuts material by projecting the sketch on to the model and then cutting perpendicular to the faces intersect by the projection.

Adding bends:

Flange:It is used to add flat flangeat an angle to a planar face and add the bend betweent the two.The flange consists of webs and bend.The flange is created on the edge of the base,flange,hem etc. The length angle of the flange can be adjusted.

Bend:Modifies the model by bending the material on one side of the sketch line,adding the bends between the two sides.

Break corner:

The break corner tool is used to remove the sharp edge and convert it to round edge.

Unbend:

This tool is used to flatterns a bend and the materials adjusent to the bend.

Rebend:

Restores an unbend feature to its previous bend state along with any features added after unbend feature.

Holes:

Add a hole to one or more solid bodies in a part or assemblies with the option for counterbore,countersunk and threaded.

Dimple:

Lifts an area of the model inside a sketch that simulates a stamping tool.The direction of the dimple is also reversed.

Bead:

The sketch for beads must be tangent and continues.The bead tool is used to lifts material along the contour of a sketch that simulates a stamping tool.

Mirror:

The mirror tool is used to create copies of a feature or body and mirror it across the plane.

Drafting:

The drafting of casing takes place in drafting workbench in which the 3D model is converted into 2D detailed view.

Flat pattern:

Used to create a flat pattern feature from the formed sheet metal part.

Base view:

It helps to create a model based view on the drawing sheet.This tool is available in drafting workbench.

STANDARD VIEWS OF THE MODEL:

TOP VIEW

BOTTOM VIEW

RIGHT SIDE VIEW

FRONT VIEW

ISOMETRIC VIEW

DETAILED DRAWING SHEET

CONCLUSION:

Thus the project has completed by designing and drafting the casing using sheetmetal work bench of siemens NX.