CATIA V5 Training

CATIA V5 TRAINING COURSE

INTRODUCTION •

The 3D CAD system CATIA V5 was introduced in 1999 by Dassault Systems.

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The concept of CATIA V5 is to digitally include the complete process of product development, comprising the first draft, the design, the layout and at last the production and the assembly.

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The present training includes a selection of functionalities in the workbench Mechanical Design. ( Part modeling, Assembly & Drafting ).

USER INTERFACE Start Menu Dropdown / Modules

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Menu bar with pull down menus for the access of CATIA features Workbench symbol for quick switching between the workbenches Standard toolbar containing common features such as Open, Close, Print, Cut and Paste Compass, used for changing the view and moving objects Status bar with instructions and prompts The workbench toolbar displays all the features, that can be used within a specific workbench

Standard toolbar

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New ... Creates a new part, assembly or drawing document

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Open ... Opens an existing document

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Save ... Saves the active document

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Print ... Prints the active document on the default printer, using the default printer settings

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Cut ... Removes the selection from the active document and places it on the clipboard

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Copy ... Copies the selection to the clipboard

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Paste ... Inserts the content of the clipboard at the selected location

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Undo selection ... Reverses the last action. It is possible to recall the command log and undo the last actions using the pull down menu

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Redo ... Repeats the last cancelled action

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What’s this? ... Provides help on toolbar icons

View toolbar

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Fly ... When navigating in the Fly mode, translations and rotations in all three directions in space are possible.

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Fit all in ... Zooms in or out, so that all the selected geometry optimally fits the available space.

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Pan ... Pans the view

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Rotate ... Rotates the view

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Zoom In... Zooms in in increments

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Zoom Out ... Zooms out in increments

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Normal View ... Displays the part with a view normal to a plane

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Create Multi-View … Creates four different views in the current window

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Views ... Different standard views can be chosen: Isometric View, Front View, Back View, Left View, Right View, Top View, \Bottom View, Named Views

View Modes •

Shading … Displays the geometry in shading mode

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Shading with Edges … Displays the shaded geometry with edges

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Shading with Edges without Smooth Edges … Displays the shaded geometry with edges without smooth edges

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Shading with Edges and Hidden Edges … Displays the geometry with edges and hidden edges

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Shading with Material … Displays the shaded geometry with material

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Wireframe … Displays the geometry in wireframe mode

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Customize view parameters … Activates the customized view mode, enabling a customization of the view parameters

Sketch-Based Features Sketch-Based Features are required to generate 3D solid geometries. •

Pad ... Creates a prism from an open or closed profile. The profile can be generated in a sketch.

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Pocket ... The command Pocket creates a prism from a profile that is removed from a body.

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Shaft / Groove ... Shaft creates a rotating solid from a profile and an axis of revolution. A Groove is a shaft that is being removed from an existing geometry

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Hole ... Creates a hole within an existing body. The hole can also be threaded or countersunk

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Rib / Slot ... Creates a rib or a slot (i.e. a removed rib) by sweeping a profile along a center curve

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Stiffener ... Creates a stiffener

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Multi-sections Solid / Removed Multi-sections Solid ... Creates a solid (or a removed solid) defined by several profiles and corresponding guiding curves

Dress-Up Features The Dress-Up Features enable changes on existing bodies. •

Edge Fillet ... Generates an edge fillet. Additionally, several other modes are available: Variable Radius Fillet, Face-Face Fillet and Tritangent Fillet

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Chamfer ... Creates a Chamfer by removing or adding material from a selected edge. Several input modes are possible (Length – Angle,

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Length – Length)

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Draft Angle ... The commands Draft Angle, Reflection Line and Variable Angle Draft facilitate the creation of drafts on existing solids.

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Shell ... Creates a shell by hollowing out an existing geometry

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Thickness ... Selected surfaces of an existing solid can be supplied with allowances

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Thread / Tap ... Creates a thread or tap by specifying its support, limits and numerical values

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Remove Face … Removes one or more faces

Reference Elements Reference elements are generated by means of prompt windows to define all relevant parameters.

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Point ... Creates one or more points in space

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Line ... Creates a line in space

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Plane ... Creates a plane in space

PART DESIGN

Part Design 1. Select the File -> New commands (or click the New icon). The New dialog box is displayed, allowing you to choose the type of document you need. 2. Select Part in the List of Types field and click OK. The Part Design workbench is loaded and an empty CATPart document opens.

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Click the Sketcher icon to start the Sketcher workbench.

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Select xy plane to define the sketch plane.

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Now, the Sketcher workbench is displayed. It contains the tools you need to sketch any profile.

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First, create a line: end your first line.

click a point, drag the cursor and click a second point to

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CATIA uses a green symbol to call your attention on the line property. This line is horizontal.

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To complete the profile shape, create two arcs tangent to two lines: click the Corner icon . Activating

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this command displays the Corner toolbar which contains three options. The Corner trim all command is activated by default.

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Select both lines as indicated.

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The lines are then joined by a rounded corner which moves as you move the cursor.

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Click in the area as shown to define the first corner:

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Click the Constraint icon . This command sets a length constraint. The distance between the lines you have selected is 200 mm. Click anywhere to locate the dimension. Now, double-click the radius value of the first corner. After Constraints are complete, click the EXIT Sketcher icon.

Creating a Pad (extrude) •

Click the Pad icon .

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The Pad Definition dialog box appears. Default options allow you to create a basic pad.

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As you prefer to create a larger pad, enter 90 mm in the Length field.

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The application previews the pad to be created.

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Click OK

Creating Draft •

Click the Draft icon .

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The Draft Definition dialog box appears.

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Check the Selection by neutral face option to determine the selection mode.

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Select the upper face as the neutral element.

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This selection allows CATIA detect the faces to be drafted. The neutral face appears in blue and the faces to be drafted in dark red.

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Enter 9 degrees in the Angle field.

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Click OK. The part is drafted:

Filleting an Edge •

Click the Edge Fillet icon .

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The Edge Fillet Definition dialog box appears. It contains default values.

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Select the edge to be filleted, that is, to be rounded.

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A default filleted edge is previewed.

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Enter 5mm as the new radius value and click OK.

Mirror the Part •

Click the Mirror icon .

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The Mirror Definition dialog box is displayed.

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Select the reference face you need to duplicate the part.

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The name of this face appears in the

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Mirroring element field.

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Click OK.

Sketch Circle on face

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Select this face to define the working plane.

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Click the Sketcher icon to enter the Sketcher workbench.

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Once in the Sketcher workbench, click the Circle icon to create a basic circle.

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Click the circle center in the middle of the face and drag the cursor to sketch the circle.

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Make Dia 50mm the size of the circle.

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Then, click the exit Sketcher icon

Creating a Pocket •

Select the circle you have just sketched, if it is not already selected.

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Click the Pocket icon .

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The Pocket Definition dialog box is displayed and CATIA previews a pocket with default parameters.

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Set the Up to last option to define the limit of your pocket.

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This means that the application will limit the pocket onto the last possible face, that is the pad bottom.

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Click OK.

Shelling the Part •

Select the bottom face of the part.

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Click the Shell icon .

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The Shell Definition dialog box is displayed.

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Select the face to be removed.

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Click OK to shell the part using the default inner thickness value.

New Part Sketch •

Make new Part file.

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Click on Sketch icon.

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Select Plane

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Draw the Pin half section as shown in picture with dimensions.

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Exit Sketcher.

Shaft •

Select the Shaft icon

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The Shaft menu box appears.

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Select the neutral axis.

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Click OK.

Assembly

Start Assembly Module •

Click Start Æ Mechanical Design Æ Assembly Design

Inserting Component •Click Insert Æ Existing Component. •Click on Product1 •Browse the part file and select Plastic.Catpart

Apply Constraints •Click Insert Æ Fix icon. •Click on Plastic to lock its position in the assembly window.

Insert Component •Now insert second component of the assembly •Click Insert Æ Existing Component. •Click on Product1 •Browse the part file and select pin-shaft.Catpart

Manipulation •

Click on Manipulation icon to manually translate, rotate the object.

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First Rotate the pin along z-axis.

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Translate along x-axis.

Coincidence Constraint •

Click on Coincidence Constraint icon.

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Select the center axis of the pin.

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Select center axis of the hole.

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Click OK.

Contact Constraint •

Click on Contact Constraint icon.

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Select the bottom face of the pin head.

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Select upper face of the plastic part.

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Click OK.