TUTORIAL
MODELING A BENT PIPE

This tutorial exercise provides step by step instruction on creating a bent pipe. Follow the steps shown below.

1) Open CATIA by double clicking the Icon which would be in your desktop if you are using Windows and believe it to be the same for UNIX also. The screen would be as in Figure 1.


Figure 1.

2) Click File menu from top of your screen and click new file option from the menu list as shown in Figure 2.


Figure 2.

3) Then a small dialogue box appears as shown in Figure 3. Select part from the list and click OK. Then a default part with name part1 is opened.


Figure 3.

4) Select “yz plane” from specification tree as shown in Figure 4.


Figure 4.

5) Select “Sketcher” workbench by clicking the icon as shown in Figure 5.


Figure 5.

6) Now let us select “Circle” tool by clicking the icon as shown in Figure 6 or select from Insert>Profile>Circle>Circle menu Figure 7.


Figure 6.


Figure 7.

7) Draw a circle as shown Figure 8.


Figure 8.

8) Now select “Constraint” tool by clicking the icon in the tool bar as shown in Figure 9.


Figure 9.

9) Now just click on the circle and the diameter of the circle would be displayed as shown in Figure 10 . When you double click on the diameter value “Constraint Definition” dialogue box appears where you can see present diameter value as shown in Figure 11. Now let us change the value of diameter to 100mm and click ok, as shown in Figure 12.


Figure 10.


Figure 11.


Figure 12.

10) Now let us sketch one more circle inside the present one, with 98 mm diameter as shown in figure 13.


Figure 13.

11) Exit sketcher workbench by clicking the icon in toolbar as shown in Figure 14.


Figure 14.

12) Select “zx plane” as shown in Figure 15.


Figure 15.

13) Select “sketcher” tool by clicking the icon as shown in Figure 16 .


Figure 16.

14) Select “Line” tool by clicking the icon in toolbar as shown in Figure 17.


Figure 17.

15) Sketch a line as shown in Figure 18.


Figure 18.

16) Now let us edit the corner of the line by clicking “Corner” tool from toolbar as shown in Figure 19.


Figure 19.

17) Select two line whose corner should be edited as shown in Figure 20.


Figure 20.

18) The corner with existing radius would be as shown in Figure 21, which can be edited later.


Figure 21.

19) Select other two lines whose corner has to be edited as shown in Figure 22.


Figure 22.

20) The resultant corner (second) would be as shown in Figure 23.


Figure 23.

21) Now let us double click on the radius to change the parameters as per our requirement, then “Constraint Definition” dialogue box pops up as shown in Figure 24. {You can see present radius in the below image}


Figure 24.

22) Change both the radius of the corners to 60 degrees and set the remaining dimensions as shown in Figure 25.


Figure 25.

23) Exit “Sketcher” workbench by clicking the icon in the toolbar as shown in Figure 26.


Figure 26.

24) Select “Rib” tool by clicking the icon as shown in Figure 27. or go to Insert>Sketch-Based Features>Rib menu as shown in Figure 28.


Figure 27.


Figure 28.

25) When “Rib Definition” dialogue box appears select sketches for “Profile” and “Center Curve” and click ok as shown in Figure 29.


Figure 29.

26) The resultant bent pipe would be as shown in Figure 30.


Figure 30.