CATIA FOR DESIGNERS V5R13 PDF

Choose the Circle button from the Wireframe toolbar; the Circle Definition dialog box is displayed, as shown in Figure The Center and radius option is selected by default in the Circle type drop-down list; you are prompted to select the center point. You can select a predefined point or create a point by choosing any one of the options from the contextual menu, which is available when you right click on the Center selection area of the Circle Definition dialog box. Next, you are prompted to select the support surface.

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There are two methods to invoke the Assembly Design For example, if you first select a line and. Evaluation chapter. Logon to www. The components are brought together and assembled in Assembly Design workbench by applying suitable parametric assembly constraints to them. The assembly constraints allow you to restrict the degrees of freedom of components on their respective work positions.

Figure The Product option selected from the New dialog box A new file is started in the Assembly Design workbench. You will notice that the toolbars related to assembly are displayed.

The tools available in these toolbars will be discussed later in this chapter. The first design approach is the bottom-up approach, and the second one is the top-down approach. Both these design approaches are discussed below. Bottom-up Assembly The bottom-up assembly is the most preferred approach for creating assembly models. CATPart file. CATProduct file is started and all the previously created components are inserted and placed in it using the tools provided in the Assembly Design workbench.

After inserting each component, constraints are applied to position them properly in the 3D space with respect to other components. Adopting the bottom-up approach gives the user the opportunity to pay more attention to the details of the components as they are designed individually.

Because the other components are not present in the same window, it becomes much easier to maintain a relationship between Figure Screen display after starting a new file in the Assembly Design workbench the features of the current component. This approach is preferred for large assemblies, especially those having intricate individual components.

Top-down Assembly In the top-down assembly design approach, components are created inside the Assembly Design workbench. Therefore, there is no need to create separate part files of the components. This design approach is completely different from the bottom-up design approach. Here you have to start the product file first and then, one by one, create all components. Note that even though the components are created inside the product file, they are saved as individual part files and can be opened separately later.

Adopting the top-down design approach gives the user the distinctive advantage of using the geometry of one component to define the geometry of the other. Here the construction and assembly of the components takes place simultaneously. As a result of this, the user can view the development of the product in real time.

This design approach is highly preferred, while working on a conceptual design or a tool design where the reference of previously created parts is required to develop a new part. Note An assembly can also be created by using the combination of both the top-down and bottom-up assembly design approaches. They are assembled at their working position by applying assembly constraints to them.

To create an assembly using this approach, it is recommended to insert the first component and fix its position after properly orienting it in the 3D space. The other components can be inserted and positioned with reference to the first component. The method used for placing components inside the product file is discussed below.

You are prompted to select a component into which the existing component will be inserted. You need to select Product1 from the Specification Tree. After you do so, the File Selection dialog box is displayed. Browse the location where the part files are saved and double-click on the component to be inserted; the component will be inserted in the current product file.

You will notice a new entry in the Specification Tree, which is referred to as Part1. Part1 is a default part number assigned by the software to the component. A default part number is assigned to each component that is inserted in the assembly, unless it is changed by the user.

Inside the assembly, the components are referred to by their part number and not by their file name. The process of changing the part number of the component is discussed later in this chapter.

It is always recommended to fix the first component using the Fix constraint after inserting. The method of applying the Fix constraint to the component is discussed later in the chapter.

The above procedure needs to be repeated for inserting the next component. When you insert additional components, the Part number conflicts dialog box is displayed, as shown in Figure This dialog box is displayed because there is a clash between the part numbers of the previously inserted component and the currently inserted component.

Note that in the selection area of the dialog box, the numbers of both the components are displayed as Part1, but the names of the files are different. You can change the part number of the Figure Part number conflict dialog box Assembly Modeling If you select the component to be renamed and choose the Automatic rename button, the part number of the selected component is renamed from Part1 to Part1. Choose the OK button from the Part number conflicts dialog box to insert the second component into the Product file.

Follow the same procedure to rename the part number, while inserting other components. Note that while inserting the third component, the first time when you rename the component using the Automatic Rename option the part number is changed to Part1. Because this part number is already assigned to the second component, the Part number conflicts dialog box is again displayed after choosing the OK button and shows the conflict between the second and third component.

You need to choose the Automatic rename button again to change the part number of the third component. Now, the third component will be renamed from Part1. Choosing the OK button will insert the third component into the product file. This means if you are inserting the nth component, the automatic rename button has to be used n-1 times. This way the part number of every new component keeps on changing in a similar fashion, and the same is represented in the Specification Tree, as shown in Figure Figure Specification Tree showing four components If you choose the Rename button from the Part number conflicts dialog box, the Part Number dialog box is displayed, as shown in Figure Figure The Part Number dialog box In this dialog box, you can enter the new part number for the selected component based on your requirement.

After typing the new part number in the text box provided in the dialog box, choose the OK button to exit the Part Number dialog box. Now, choose the OK from the Part number conflicts dialog box to insert the component in the product file. Ideally the part number entered should be the same as the file name. If you enter the same part number for two different components, it will not be accepted by the software, and the Part number conflicts dialog box will again be displayed.

Again choose the Rename button and enter a unique name for that part such that it does not conflict with any other part number. The advantage of using this option is that the user can enter the desired part number, which can Evaluation chapter.

There are two active buttons available on the right of the selection area of this dialog box: Rename and Automatic Rename. The Specification Tree showing individual part numbers is shown in Figure Figure Specification Tree showing four components with unique part numbers Note that in the Specification Tree, the part numbers of each component is suffixed by the instance number, which is displayed within parenthesis. This instance number is generated by the software itself and is unique for each component.

When a component is inserted into a product file, its placement in the 3D space depends on the location of its default planes. The default planes of the component are placed over the default planes of the product file. The default planes of the product file are not visible, but are present at the center of the screen, unless moved by panning. When more than one components are inserted into the product file, the default planes of all components are placed one over the other hence appearing as one set of default planes.

When the components are moved away, the defaults planes of each component are distinctly visible. You will learn more about moving the components later in this chapter. Note If the default planes of the inserted components are not visible, this means its visibility is turned off in its part file. Therefore, you need to turn on the visibility of the reference planes in the part file to display them in the assembly file. You can also insert components in the product file using the Copy and Paste method.

To insert the components using this method, open the part file of the component that you need to insert. Select the name of the component from top of the Specification Tree, and choose Copy from the contextual menu. Now, switch to the product file, and select the name of the assembly on top of the Specification Tree. Invoke the contextual menu, and choose Paste from it; the component will be placed in the assembly. Moving Individual Components Generally, the components when inserted in a product file are overlapped by other components placed earlier.

As a result, their visualization is hampered, and it becomes difficult to apply constraints to them. Therefore, it is necessary to reposition the components in the 3D space such that they are distinctly visible, and the mating references are accessible in the assembly. CATIA allows you to move and rotate the individual unconstrained components inside the Assembly Modeling product file without affecting the position and location of the other components.

The reorientation of the component can be carried out using three different methods, which are discussed in the following sections. To translate or rotate any component, choose the Manipulation button from the Move toolbar; the Manipulation Parameter dialog box is displayed, as shown in Figure Figure Manipulation Parameter dialog box This dialog box contains buttons arranged in three rows.

The currently active button is displayed on the top of the dialog box. The buttons in the first row are used to translate the component along a particular direction. There are four buttons in this row, which are discussed below: The Drag along X axis button is the first button and is chosen by default.

This button is used to translate the selected component along the X-axis of the assembly coordinate system. To move the component, select the component to move and then drag it. After moving the component to the desired location, release the left mouse button. The Drag along Y axis button is used to translate the component along the Y-axis of the assembly coordinate system.

It works similar to the button discussed above. After choosing the Drag along Y axis button, select the component to move and then drag it. The Drag along Z axis button is used to translate the component along the Z-axis of the assembly coordinate system.

ALPINE IDA X200 MANUAL PDF

EN-Catia_v5r13_Desig..

The textbook covers all-important workbenches of CATIA V5R17 with a thorough explanation of all commands, options, and their applications to create real-world products. About 55 mechanical engineering industry examples are used as tutorials and an additional 35 as exercises to ensure that the user can relate their knowledge and understand the design techniques used in the industry to design a product. After reading the textbook, the user will be able to create solid parts, assemblies, drawing views with bill of materials, surface models, and Sheet metal components. Also, the user will learn the editing techniques that are essential to make a successful design. In this book, the author emphasizes on the solid modeling techniques that improve the productivity and efficiency of the user. Salient Features of the Textbook Consists of 15 chapters that are organized in a pedagogical sequence.

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