ME-546 Computer Aided Manufacturing

Lesson 2 -- Clip Flange

Pro/ENGINEER Functions

Part Sketch View Dbms Exit
Protrusion Dimension Revolve Regenerate

Design Objective

In this lesson you will learn how to revolve a 3D part, as shown in Figure II.2-1, by using a 2D cross section and a revolution axis.

Modeling Strategy

I. Use the SKETCHER menu to sketch the L-shaped cross section and a centerline axis of revolution.

II. Revolve the cross section 300-degrees about the axis of revolution.

III. Shade the part.

IV. Store the part as flange.

Detailed Construction

I. Create Datum Planes and Use the SKETCHER menu to sketch the L-shaped cross section and an axis of revolution.

1. Begin a new part:

1. MAIN - Mode - Part - Create
   - Enter part name [ flange ]

2. Create Datum Planes

1. Choose Feature from PART.

2. Choose Create from FEAT.

3. Choose Datum from FEAT CLASS

4. Choose Plane from DATUM

5. Choose Default from MENUDTM OPT

3. Set up the base feature: a solid of revolution:

1. PART - Feature - Create - Solid - Protrusion - Revolve - Solid - Done

2. One side

3. Setup New - Plane - Pick

4. Choose DTM2

5. Flip - Okay

6. Bottom - Plane - Pick

7. Choose DTM3

4. Create the L-shaped cross section:

1. - Create the sketch shown in Figure II.2-2 .
   Don't forget to create the revolution axis and dimension the distance between the cross section and the axis. In order to create a centerline, choose Line from GEOMETRY and then Centerline from LINE TYPE. The centerline should then be aligned with the vertical datum plane using Alignment in the Sketcher Menu. You will probably need to Trim the corner where your mouse sketch lines come together to close the section. Under Sketcher choose Geom Tools - Trim - Corner - Pick and select the two line segments to be trimmed. Autodim can be used with this simple section to make your life easier.

5. Dimension the sketch:

1. Use the left mouse button to pick an entity, and place the dimensions with the middle mouse button.

6. Regenerate the section:
   - Regenerate

7. Modify the dimensions:
   - Modify
   Use the left mouse to pick a dimension, key in a new value, and press RETURN.

8. Regenerate the final part:
   - Regenerate - Done

II. Revolve the cross section 300 degrees about the axis of revolution.

Create - Rev To - Variable - Done

Enter 300 in the message window for the angle of revolution.

Select OK in the Protrusion:Revolve menu to commit to the feature.
The revolved part is displayed, but you may wish to spin the part to see it better.

III. Shade the part.

To display a shaded image of the flange:

MAIN - View - Cosmetic -Shade - Display

To erase the shaded image:

MAIN VIEW - Repaint

IV. Store the part as flange.

MAIN - Dbms - Save
- Press RETURN to use the default name. A message stating that your part has been stored appears in the message window located at the bottom of the screen.

V. On your own, cut a hole through to the center from only one side of the revolved feature.

Lesson 2 is complete.