AUTO CAD OVERVIEW

AutoCAD is an interactive drawing system designed to permit a user to construct or edit a drawing on a graphics display screen. It was introduced in the early 1980’s by “Autodesk Inc.”, California, U.S.A.

There are many reasons for using AutoCAD:           

Business Competition

The most potent driving force is competition. In order to win business, companies used CAD to produce better designs more quickly and more cheaply than their competitors. 

Productivity is much improved by a CAD program enabling you to easily draw polygons, ellipses, multiple parallel lines and multiple parallel curves.

Accurate Positioning Line work

Color and Hatch  Patterns

The speed is increased by the use of automatic fillets and chamfers; 

the computer ability to "snap" automatically to particular geometric points and features will spread the accurate positioning of line work. 

Copy, rotate and mirror facilities are also very handy when drawing symmetrical parts.

Many hatch patterns are supplied with CAD programs. Filling areas in various colors is a requirement in artwork and presentations.  

Importing Graphic File formats

The possibility of importing different graphic file formats and scanning of material (photographs) into a CAD program is also an asset especially as the image can be manipulated, retouched and animated.

Inserting Existing Components

Using CAD products, assembly drawings can be constructed by inserting existing component drawings onto the assembly drawing and positioning them as required.

Fast Documentation Components

Clearance between different components can be measured directly from the drawing and, if required, additional components designed using the assembly as reference.

CAD is very suitable for repetitive and fast documentation where a product is one in a range of sizes. Assume that you manufacture a range of motor driven pumps operating at different pressures. Many parts will be used in different combinations in the range and the computer database documentation is programmed accordingly. 

A computerized tender can be sent with the appropriate specification and technical details. On receipt of an order, all of the documentation relating to manufacture, testing, dispatching and invoicing will be available.

Saving of Time Components

Previously, engineers and drafters wasted almost 30% of their time looking for drawings and other documents. Editing drawings to effect revisions and produce updated parts lists is quick and easy using a CAD product.

Transfer Facility Components

Complex Geometry Components

In CAD, you make the change immediately and print out a new drawing in minutes, or you can transmit it via E-mail or Internet all over the world instantly.

On paper creating complex geometry often involves a lot of measuring and location of reference points; In CAD it is a breeze and revisions are even simpler.

Facility to make Different Ideas Components

Many CAD programs include a macro or an add-on programming language that allow customizing it. Customizing your CAD program to suit your specific needs and implementing your ideas can make your CAD system different from your rivals.

Better Designs Components

CAD can enable companies to produce better designs that are almost impossible to produce manually and to eliminate dubious options during the conceptual design phase; 

For example in area of complex surfaces and Finite-element analysis.

Rapid Generation of Proposed Models Components

Many CAD systems permit the rapid generation of models of proposed designs as wire-frames. The computer memory stores details of all the geometric data to define each part of the frame. From the dimensions of the components, the computer will calculate surface areas, volumes, weights for different materials, center of gravity, moments of inertia and radii of gyration; it can also use the applicable value for stress and other calculations, which are necessary part of design.

Transfer of Solid Models Models Components

The solid modeling created in CAD can be transferred to a Finite Element Analysis (FEA) program, which will then verify whether the suggested design will be capable of supporting the expected loads.

Prototyping Models Components

The biggest contribution of computers to the design process is soft prototyping - the process of creating a 3D-computer model of a design that can be subjected to computer-based testing. Soft prototypes are almost faster and cheaper to built than real prototypes and are often better at their main activity than a real ones; That because model shop prototypes usually use processes and materials very different from those ultimately used for the production version of the product.

Resemble the Real Material Models Components

Rendering and Animation Models Components

The soft prototypes can resemble the final product much more closely than any real material prototypes. Realistic images of the soft prototypes can be used by marketing people to produce sales collateral, manuals and the whole gamut of marketing materials. They can even be used for testing marketing to determine whether the product is worth producing at all. Sale departments use 3D illustrations in brochures and literature for promotional applications.

Presentation programs with rendering models and animation in 3D form a large part of selling and advertising in today competitive market.

Comprised Instructions for Machines Models Components

Checking Models before Manufacturing Models Components

CAD will be linked to CAM (Computer Aided Manufacture) whenever possible. CAD/CAM systems could produce computerized instructions for computerized machine controllers: lathes, mills, machining centers, turret punches, welding equipment, automated assemblies, etc.

The resulting NC program can be exported back into the CAD system to produce a simulated back plot of the tool path or imported into a solid modeling NC program to produce a computer model for checking before manufacture.

Types Of Engineering Drawing

1.    Mechanical Drawings

2 . Civil Drawings

3 . Architectural Drawings

4. Schematics

5. Block Diagrams

6. Assembly Drawings

7. P&I diagrams etc

8. Plant layout diagrams

9. Wiring diagrams

10. Hydraulic power diagrams

MECHANICAL ENGINEEGING: - Auto CAD, Catia,Proe,Solid Work,Ansys etc

      CIVIL ENGINEERING: - AutoCAD, Stadd, Solid Work etc

         Drawing is a graphical representation for expressing

a view or Idea. 

 (1)2D   (2)3D   (3)Isometric  (4)GIS.

Reason for Joining NCA CAD TRAINING INSTITUTE NOIDA

Ø  Well industrial experienced faculty.

Ø  Demo class provides .

Ø  Project materials provide to the students of DIITM.

Ø  Well equipped computer Lab.

Ø  Excellent education environment.

Ø  Placement provide in good industry.

Ø  Industrial visit.

For more information visit our institute NCA NOIDA Auto Cad Training Institute