Design of Casing

ADVANCED SHEET METAL DESIGN USING NX CAD IN CASING DESIGN

OBJECTIVE:

Main objective of the project is to create a Casing design in NX cad Sheetmetal workbench, and also to create a Sheetmetal drafting in NX cad platform. There are was multiple features used to create a Sheetmetal Casing.

SOFTWARE USED: NX 12.0

• To design the Sheetmetal casing in NX 12.0 version using some basic feature to create them.
• NX Software is a flexible and powerful integrated solution that helps you deliver the products faster and efficiently.
• NX Cad software is widely used automotive, aerospace, thermal power station. It is used to product developing and manufacturing at all stages of the life cycle.

INTRODUCTION:

1. Let’s get started how NX Cad software performing in Sheetmetal application. Sheetmetal fabrication is the process of forming parts from a metal sheet by punching, cutting, stamping, and bending.

2.3D files are converted to machine codes to control the machine movement to create the desired shape of the component.

3.There are different types of material are used in this fabrication process, such as ALUMINIUM, BRASS, COPPER, STEEL, TIN.

4.Sheet metal parts are known for their durability, which makes them great for durability, which makes them great for end use applications.

5.Parts are used for low volume prototypes high volume production runs are most cost-effective due to large initial setup and material costs.

6.Because parts are formed from a single sheet of metal, designs must maintain a uniform thickness.

7.Be sure to follow the design requirements and tolerances to ensure parts fall closer to design intent and cutting sheets of metal.

DESIGN METHOLOGY: (CASING DESIGN)

DESCRIPTION:

In this project we want learn about how to Create Casing Sheetmetal design NX cad platform. So, the Sheetmetal basic features are used to create them efficiently. Before staring to work, we want to assign something to do work efficiently

Go to the Sheetmetal Preferences you will see the Part properties option. So you go to assign the Material thickness, Bend radius, Relief Depth and Relief Width values are 1mm.

SKETCH:

Sketch is used for creating the model by specify shape and dimensions.

SKETCH EXPLANATION:

• In this model we want to create a tab, so that why we are creating the sketch option.
• Rectangle shape is using in this tab feature.

TAB:

Tab is the first feature used for creating Sheetmetal designing process. All other features of the Sheetmetal components are based on the base feature or tab. The tab feature is always parent feature of the other Sheetmetal feature in the NX cad platform.

TAB FEATURE EXPLANTION:

• We select the XY plane for Creating to the sketch.
• Then create Rectangle shape in dimension of (200mm,150mm) sketch in XY plane.
• After that select the tab feature and add thickness to 1mm.

NORMAL CUTOUT:

Using the normal cutout option, it is used to remove the material from projecting a sketch onto the intersecting model.

NORMAL CUTOUT FEATURE EXPLANATION:

• In normal cutout option in Sheetmetal platform, first select to top of tab surface.
• Then Create Rectangle shape (5mm,40mm) tap surface.
• After creating a sketch click ok to normal cutout option and specify the depth value at 5mm.

BEND:

Modifies the model by bending material on one side of a sketch line, adding a bend between the two sides.

BEND FEATURE EXPLANATION:

• Bend feature option is similar to the Flange feature. In bend feature first we create line in top of the tab feature.
• Add dimension of Sketch to specify the place for sketch. After create that select the bend line next click the target option and it is specify the angle(90) then click ok.

FLANGE:

This tool is used to create the bend structure of the edges of the Sheetmetal.

FLANGE FEATURE EXPLANATION:

• It is widely used feature in Sheetmetal option.
• Click which edges you want bend. And add the length(5mm), angle(90),bend radius(1mm), length reference, inset option to specify the flange option.

BREAK CORNER:

Round or chamfers a sharp corner of the tab or flange feature.

BREAK CORNER FEATURE EXPLNTION:

• Break corner option just create the round shapes in edges.
• Click the break corner feature and which edges you want to modify the round shape.

UNBEND:

Unbend feature is used to unbend the bended region in NX Sheetmetal workbench.

UNBEND FEATURE EXPLANATION:

• Unbend feature is to create the flattens the Casing Sheetmetal.
• If the Unbend feature we are using it will flattens the Sheetmetal and adjacent to the bend.

HOLE:

To create the holes in four corner Region.

HOLE FEATURE EXPLANATION:

• We need first assign the sketches in above the tab feature.
• Then click the hole feature and specify the which type of hole you want to select the Screw clearance hole.
• And specify the position, select the direction(normal to face), form(simple), Screw type(general screw clearance), Screw size(M2), Fit(normal H13), Depth limit(through body), Boolean(subtract).

DIMPLE:

In this feature is used to lift the Sheetmetal from inside a sketch that stimulates the stamping tool.

DIMPLE FEATURE EXPLANATION:

• Dimple feature is just Lift the material inside the sketch.
• Then specify the Depth(2mm), side angle(0), Depth reference(inside), Side walls(material outside), Punch and corner radius(1mm), Minimum tool clearance(5mm).

BEAD:

Bead feature is used to lift material along a contour of the sketch that stimulates the stamping tool.

BEAD FEATURE EXPLANATION:

• Bead feature is Lift the material along the contour of the sketch.
• Then specify the Cross section(circular), Depth and Radius(1mm), End condition(formed shape), Minimum tool clearance(5mm).

MIRROR:

Mirror feature is used to mirror the feature along axis or plane.

MIRROR FEATURE EXPLANATION:

• In this feature we are mirror the bead feature help of plane.
• We first select the bead feature and mirror the feature with help of XZ plane.
• And then select the previous bead feature to mirror the feature with help of YZ plane.

REBEND:

Rebend option is used to unbend feature to its previous bent state, along with any feature added after the unbend feature.

REBEND FEATURE EXPLANATION:

• It is just Restores an unbend features to its previous bend state.
• And it is including to the any feature added to after the unbend feature.

FLAT PATTERN:

Flat pattern is used to create the casing to formed Sheetmetal part.

FLAT PATTERN FEATURE EXPLANATION:

• It is created the drafting of the Sheetmetal design.
• And it is show feature names to which feature you are using to create the model.

CASING VIEWS:

There are Four types of Views are included in this project, Front view, Top view, Right side view, Isometric view.

1.FRONT VIEW:

2.TOP VIEW:

3.RIGHT VIEW:

4.ISOMETRIC VIEW:

DRAFTING:

We can create the 2D Drawing sheet from Casing model in NX Cad software.

DRAWING SHEET:

• Drawing sheet is used to represent the Sheetmetal model in 2D view(A4) help of NX cad platform.
• It is show the which feature you re using in this Casing design.

DETAILED VIEW:

• Detailed view is nothing but it is just Show the recommended view from the model in single sheet(A4).
• You will see the detail view in A4 size sheet top, right, front, isometric views in detailed view

CONCLUSION:

• In this project creating the Casing Sheetmetal design using NX Cad Siemens 12.0 version platform.
• So, Sheetmetal basic feature and tools are learning in this project.
• Designing the Sheetmetal in NX cad software, it is user friendly interface for working in this project.