Odd Shaped Casing Design

Objective-

To design an odd shaped casing using NX Siemens sheet metal workbench.

Introduction-

To design an odd shaped casing using Nx Siemens sheet metal workbench which can be used for in an assembly for covering electrical component. The casing is designed with press technology that provides strength even if sheet metal of 3mm thickness.

Design methodology-

The tutorial pdf is analysed thoroughly. The topology of the model is checked and all the features and specifics are noted.

1. Sketch ( Base)
2. Tab ( solid sheet extrusion)
3. Flanges
4. Jogs
5. Unbend
6. Hole
7. Beads
8. Rebend
9. Flat Pattern

Description-

1. Sketch (Base) – The casing base sketch is produced using the sketch tools like rectangle. All dimensions are provided to get a fully defined sketch. The sketch parameter are so defined that future modification in sketch can update the complete model.
2. Tab (solid sheet extrusion) – It is feature used to produce the sheet metal. We can use the command to create a base feature or a tab by extruding a sketch along a vector by a specified thickness value. We can also use this command to create a secondary tab if the work part includes existing sheet metal features.
3. Bend – We can use the Bend command to modify the model by bending material on one side of a sketch line or adding a bend between the two sides. We can create a bend on a planar face of a sheet metal body these particular bends can be flatten for manufacturing and can be rebend again as it also retain its bend parameters. If the part has multiple sheet metal bodies, we can specify the target face on which you want to create the bend. We can create a bend across existing Bead, Dimple, or Drawn Cut-out features. When we create such bends, the bend line must pass completely through the deform features.
4. Flanges- We can use the Flange command to create a single flange instance or multiple instances by selecting a single or multiple base edges. A flange consists of a bend region and a web. We can add a web at an angle to a planar face and add a bend between the two.
5. Unbend - Use the Unbend command to unbend a portion of the part to construct cutout features, hole features, or deform features across a bend. You can later reform the bend to represent the true formed state of the model. We can flatten non-uniform thickness bends that are created when we apply blends or chamfers, tapered holes in the bend region. After the unbend operation, NX retains the features that we apply or create in the bend region.
6. Beads - We use the Bead command to lift material along the contour of a sketch that simulates a stamping tool. The main purpose of Beads is to stiffen sheet metal parts. We can create beads on bends in the folded or flattened state. A bead created on a bend in the folded state cannot traverse the bend. We can also create beads on deform features in sheet metal parts.
7. Hole- We use the Hole command to create holes on solid or sheet by using points or circles as references.
8. Flat Pattern- Use the Flat Pattern command to create a 2D representation of the flattened 3D sheet metal part. Create a flat pattern from a formed sheet metal body or from flat solids. You can specify the flat pattern treatments and the default display of curves and callouts in the flat pattern view for each part individually in the Sheet Metal Preferences dialog box. You can create a flat pattern view using the default orientation method or by specifying a linear edge from the selected upward face.

Views-

Front View

Top View

Right View

Isometric View

Drafting

Model Tree

 Draft

Conclusion-

Thus the Complete Odd Shaped Casing is designed and constructed .