Advanced Sheet Metal Design Using NX Cad Challenge_1_Casing Design

TO DESIGN A CASING BY USING SIEMENS NX CAD 

Objective: 

The main aim is to design a casing sheet metal by using NX CAD. 

Introduction: 

Casings usually used to enclose or cover the required components from protecting many things by using NX CAD for modeling the sheet metal casing. 

Casing can protect the sensitive inner components from damaging, accidents etc., 

• computer is used sheet metal casing to the outer body. 
• Casing borehole, metal tubes used for drilling a well. 

Design methodology: 

 

Features used for design a casing: 

• Sketch 
• Tab 
• Normal cutout 
• Bend 
• Flange 
• Break corners 
• Unbend 
• Hole 
• Studio spline for dimple sketch 
• Dimple 
• Beads 
• Mirror 
• Rebend 
• Flat pattern 
• drafting 

Sketch: 

To setup the coordinate system and draw a sketch by giving dimensions and constraints to the plane, in this model to use origin point and make the rectangular sketch portion for given dimensions. 

Tab: 

The sketch portion can be extruded by given appropriate and suitable thickness for sheet metal. 

Normal cutout: 

The extrude one or tab model can cutout by creating sketch for drawn out the unwanted portion by using normal cutout, in this cutout the portion of cut always perpendicular to the job piece along plane. 

Bend: 

To create symmetrical lines in sketch for given the dimensions for bend, by referring the lines along the tab model can be bend by using bend feature. 

Flange: 

To add flange to bend edges of the model for required length and direction. 

Break corners: 

To add break corners to the sharp edges of the model to smooth transition by given radius. 

Unbend: 

To unbend the model for further operations like drilling, boring and alike, by selecting the center face for unbend the sheet metal. 

Hole: 

To create sketch line at midpoint of the bend portion, by selecting that midpoint of sketch line and make pointers to markup for creating holes for giving dimensions and depth of the hole. 

Studio spline for dimple sketch: 

To create sketch on the plane at origin and make studio splines by connected the sketch geometry poles for creating spline. 

Move curve: 

To rotate the spline at required angle for creating a dimple. 

Dimple: 

To create a dimple by selecting the spline geometry and given a required constraint of a feature. 

Beads: 

To create a beads on the sheet metal for providing addition strength to the model. 

Mirror: 

To add mirror feature to beads and its sketch by referring the plane to mirror along the opposite side. 

Rebend: 

To rebend the model by selecting the feature and make select and drag the left mouse button on the model. 

Flat pattern: 

To create a flat pattern for manufacturing purpose of the component. 

Drafting: 

To adding into drawings file for manufacturing the model by referring dimensions. 

Casing design: 

                                 

                                                                        Casing isometric view 

                                

                                                                                   Top view 

                                 

                                                                                     Front view 

                                

                                                                                       Side view 

                                

                                                                                     Bottom view 

Drafting images: 

 

                                                           Flat pattern drafting diagram with dimensions 

 

Conclusion: 

To learn the sheet metal designing and tool methodology by design a casing in sheet metal by using tools and it’s features by using NX CAD.