Advanced Sheet Metal Design Using NX Cad Challenge_1_Casing Design

                                                                         1.Title of the Project:  Nx_casing design using Nx cad

     2. Objective: To design a sheet metal casing in industrial manner by using Siemens NX Cad.

     3. Introduction: The sheet metal application provides an environment for the design of sheet metal parts used in Machinery, Automotive,Aerospace etc.Enclosures,brackets,and other                                         parts normally manufactured with a brake press.

    4.Design methodology / approach: 

Description: 

Base sketch: For creation of any component sketch is required so that we can create required shape and size of component and also for any other operation sketch is required.in this component design is started by a rectangle shape sketch.

Tab operation:  The tab is the very first feature in any sheet metal process. All the other feature of the sheet metal in Siemens NX are based on the base feature or tab. A tab is created after sketch is created in any of the plane. The tab is always the parent feature for other feature following it.

Normal Cutout:   The normal cutout helps to cut or remove material by projecting a sketch into the model and then cutting perpendicular to the faces. In the design of casing we used a rectangular sketch and applied normal cut-out with reference to it. We can specify sketches or 3D curves to apply normal cutout. 

Bend: This tool is used for bend the required position of component in this curve is used to bend two side of component.

Flange :Flange is used to add extra material to the existing edge at any angle and of any size. For this project of casing design, I added four flanges on different edges. I used full flange having parameters of 5 mm length with material inside the reference edge.

Break corner: Break corner feature is used to smoothen or chamfer the sharp edges of the sheet metal part. This action helps to prevent the stress concentration and fracture breaking.

Unbend: Unbend feature is one of the most powerful feature in NX. In industry we have to mark all the marking and sketch on flat sheet metal before it went to actual operations, so this unbend feature allow us to do that activity in Siemens NX software.

Hole: Hole feature is used to generate hole with definite parameter on sheet metal in Siemens NX. We can create different types of holes using this feature

Dimple: Dimple is the feature that lifts the area of model inside the sketch that simulates a stamping tool. Generally, it helps to strengthen the flat structure.

Bead: Bead is similar feature like dimple the only difference is that by using dimple we lift an area while in bead we lift the contour of the sketch. It also added to strengthen the component. For this project, four small beads are applied in the symmetric position as shown in the image below

Rebend: Rebend is the last tool used in this model to rebend the unbend surfaces. while rebending we should Re-bend the faces by selecting them in the reverse order in which they were bend .

Different View of model:

Drawing View

Conclusion: After follow above methods and  tools we successfully design the sheet metal casing.