Advanced Sheet Metal Design Using NX Cad Challenge_5_Odd Shaped Enclosure

                                                             SHEET METAL ODD ENCLOSURE DESIGN USING NX

OBJECTIVE :

   The objective of this project is to design a sheet metal odd enclosure from the solid body, for complex shapes this format is used to create sheet metal enclosure by over covering the solid object with consideration of manufacturing parameters and making a drawing sheet preparation for casing design.

   This project also make knowledge about how to design a sheet metal enclosure from the solid body that equals to industries standard of advanced NX Sheet metal application. 

INTRODUCTION :

 Sheet metal defines us the thin sheet which made by alloys according to needed parameters. Those sheets undergoes bending, forming, cutting, enclosing etc,.

 Sheet metal usage is increasing everyday to day life including kitchen appliances to rocket spacing every its use to fabrication of surfaces in every industries. Thin sheet metals are also known as coils and foils.

 Sheet metal plays a major role in automotive industries making surfaces of every automobiles.

DESIGN APPROACH/METHODOLOGY :

 The design approach in sheet metal design using NX sheet metal workbench.

FEATURES FLOW :

FEATURES AND TOOLS USED FOR DESIGN :

SKETCH TOOLS :

1. Line tool - Its used to create a straight line according to the coordinate system.
2. Rectangle - It is used to create a rectangle on a coordinate system.
3. Circle - Create a circle according to face and plane which we selected.
4. Rapid dimension - It is used to make dimensions of a sketch.

SHEET METAL FEATURES :

1. Tab - It is used to extrude a base sheet metal along to the selected coordinate system, thickenss of the sheet metal is based on the preference which we make.
2. Sheet metal from solid body - It's a unique tool in NX that is used to make sheet metal from solid body which is more complex.
3. Jog - Jog bend is simpily  a pair of equal and opposite bends closely spaced to create a z offset, which is often equal to material thickness.
4. Bend - In sheet metal basic principle is to be bending and unbend for the case bend feature to make bend in sheet metal according to sketch.
5. Flange - It is used to create a perpendicular or angular extend in sheet according to parameter which is given as input.
6. Unbend - It is used to make flat sheet metal feature which we make.
7. Hole - Hole feature is used to create the hole in the parts or components like countersink, counterbore, and threaded bore operatios.
8. Bead - It is same as dimple but it lifts the countor of the sketches to assess stamping.
9. Flat pattern - It is used to create a flat pattern according to the flat surface we selected.

PROCEDURE TO MAKE ODD ENCLOSURE :

• Create a sketch in ZX coordinate system after that making a solid extrude.
• In before all to create preference about making sheet metal thickness and bend radius.
• After extruding solid body use sheet metal form solid feature select the faces need to make sheet metal after using the feature the solid body converted to sheet metal body as selected bends.
• Then make flange for 90 degrees in ZY parallel.
• Completeing the flange make jog bend to parallel to other side this jog makes a jog bend of sheet metal through outwards after the process complete make unbend feature by selecting all adjacent faces of sheet metal that have to bend.
• After unbend make a two parallel line which is directly proportional to each other in centre of the sheet the line need to connect the three bending sides of sheet metal to create a bead.
• Following with completion of bead feature create a hole feature of H13 and screw feature of M10 make a through all.
• After creating it make an unbend.

Finishing all the steps create a  flat pattern option feature to make a flat view.

DRAFTING A SKETCH SHEET :

Import a flat pattern view to A4 drawing sheet in NX. In orient view make flat pattern view fixed with the sheet by rotation.

After making drafting save the sheet.

STANDARD VIEWS OF MODELLING :

FRONT VIEW :

RIGHT SIDE VIEW :

TOP VIEW :

BOTTOM VIEW :

ISOMETRIC VIEW :

DETAILED DRAWING SHEET OF MODEL :

CONCLUSION :

   End of the project have a hands on experience about creating sheet metal enclosure from complex solid  body with technical parameters need to consider for manufacturing.