1. Starting at the bottom left corner of the part.

2. Select the Profile icon from the right menu bar.

3. Sketch the vertical 1.50 inch line that defines the left edge of the part.

4. Now sketch the first arc along the top of the part. To do this hold down
the left mouse button and drag it in the direction you want the arc to go
then release the mouse button. The arc will appear and allow you to drag
and place it where you want. Place it on the grid intersection 2 inches
above the bottom of the part and a half-inch to the right. This will only
create half of the arc needed, so the process will have to be repeated to
sketch the other half of the arc.

5. Finish sketching the rest of the part. When you reach the inside .25 radius,
just repeat Step 4.

6. When the sketch is done constrain it to double check that all the
dimensions match the part shown above. Make the necessary changes if
needed.

Cad application software is the software that allows the user to design the product.It allows the user to give commands to do the geometric modelling to interact with the database and to display the cad model.Allows the user to generate plot files and to store data for later use.
In workstations usually a copy of the Cad software is loaded on to each system.

Powerful application software are available for

1. Design and analysis of components
2. Finite element analysis
3. Drafting

The qualities of a good cad cam software may be listed as follows:-

1. Interactive , three dimensional modelling.
2. Choice of modelling type, either surface modelling or solid modelling.
3. Ability to model assemblies and their connections.
4. Interfaces closely with analysis tools such as FEA, dynamic analysis,mass and section properties,and other modules.
5. Capability to edit the geometry, including :undo"operations.
6. Storage of the part description in terms of geometry,topology, dimensions , tolerances,surface finish and ability to store and attach engineering notes to the geometric entities.
7. Printout the part description in terms of standard engineering drawing format.

Get free computer tips and trick http://www.setmech.com/

http://www.setmech.com

Another way to compute the sheet metal deformation is the neutral fiber
definition (K Factor):
W = a * (R + k * T)
where:
W is the flat bend width
R the inner bend radius
T the sheet metal thickness
a the inner bend angle in radians.
If b is the opening bend angle in degrees:
a = p * (180 - b) / 180
Physically, the neutral fiber represents the limit between the material
compressed area inside the bend and the extended area outside the bend.
Ideally, it is represented by an arc located inside the thickness and centered
on the bend axis. Therefore the K Factor always has a value between 0 and
0.5.

2 Select The Sketcher Work Bench.
Every time you start CATIA V5, the CATIA V5 screen will appear as it does in
Figure 1.3. The “Welcome to CATIA V5” pop-up window will prompt you to select
a work bench. The default work bench is Product Structure. For this lesson, you
will need to select the Sketcher Work Bench. Notice, as you select the Sketcher
Work Bench that the tool bars on the right hand of your screen change and the
“Welcome to CATIA V5” pop-up window disappears.

For autocad ebook and other info just visit autocadzone.blogspot.com