Advanced Sheet Metal Design Using NX Cad _ Metal bracket-II
TITLE OF THE PROJECT: Advanced Sheet Metal Design of METAL_BRACKET part using Siemens NX Sheet Metal Application.
OBJECTIVE: To Design the METAL_BRACKET Sheet metal part using Sheet metal tools and drafting the part in flat pattern view for manufacturing and Design purpose.
INTRODUCTION:
Siemens NX is a software used for multiple engineering disciplines like CAD/CAM/CAE modules.
NX Sheet Metal Design is used for Design and Drafting of Sheet metal parts with its user friendly handy tools that converts the input sketches to desired design requirements and checks for the manufacturing feasibiltiy of the designed sheet metal part by flattening the part. The following NX Sheet metal tools are used to design this part, which is described as follows:
CONTOUR FLANGE: Creates a base feature by extruding a sketch along a vector, or adds material by sweeping a sketch along an edge or chain of edges.
NORMAL CUTOUT: Cuts material by projecting a sketch onto the model and then cutting perpendicular to the faces intersected by the projection.
UNBEND: Flattens a bend and the material adjacent to the bend.
REBEND: Restores an unbend feature to its previous bent state, along with any features added after the unbend feature.
GUSSET: Creates a Stiffening Gusset on the part.
ADVANCED FLANGE: Adds a Flange along an edge using a bend angle or a reference face. The Edge and Reference face can be curved.
FLAT PATTERN: Creates a Flat Pattern feature from the formed sheet metal part.
DESIGN METHODOLOGY:
DESCRIPTION: 1) Draw two profile sketches, perpendicular to two planes as required for design.
2) Use Contour Flange tool on the second sketch drawn and perform Normal Cut-out operations by using the first drawn sketch as required.
3) Unbend the part and apply Normal cut-out tool on bend face of the part and use the Re-Bend tool to re-bend the part.
4) Add Advanced Flange on top edge of the part as required and again Unbend the part and perform Simple Hole and Normal Cut-out operations.
5) Use Re-Bend tool to re-bend the part to it's original shape and perform Gusset operations by using Gusset tool on the part.
6) Finally, use Flat Pattern tool to flatten the sheet metal part and draft the part with the Flat pattern view created.
CONCLUSION: Hereby, designing the sheet metal part of METAL_BRACKET, learnt to perform multiple sheet metal operations by using tools like Gusset, Contour Flange, Unbend, Re-Bend, Normal Cut-out, Advanced Flange and Flat Pattern.