CAD, CAM & CAE full form

Computer Aided Design (CAD)

The use of computer systems (or workstations) to aid in the creation, modification, analysis, or optimization of a design. CAD, CAM & CEA Software working

CAD software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing. CAD output is often in the form of electronic files for print, machining, or other manufacturing operations. The term CADD (for Computer Aided Design and Drafting) is also used

CAD may be used to design curves and figures in two-dimensional (2D) space; or curves, surfaces, and solids in three-dimensional (3D) space. CAD is an important industrial art extensively used in many applications, including automotive, shipbuilding, and aerospace industries, industrial and architectural design, prosthetics, and many more. CAD is also widely used to produce computer animation for special effects in movies, advertising and technical manuals, often called DCC digital content creation. The modern ubiquity and power of computers means that even perfume bottles and shampoo dispensers are designed using techniques unheard of by engineers of the 1960s. Because of its enormous economic importance, CAD has been a major driving force for research in computational geometry, computer graphics (both hardware and software), and discrete differential geometry.

All about CAD, CAM & CAE full form

• CADD - Computer aided design and drafting, combining the CAD function with drafting to generate the production drawings of the part for the purpose of downstream processing. DEPARTMENT OF MECHANICAL ENGINEERING
• CAE - Computer aided engineering, Computer-aided engineering (CAE) is the use of computer software to simulate performance in order to improve product designs or assist in the resolution of engineering problems for a wide range of industries. This includes simulation, validation and optimization of products, processes, and manufacturing tools.
• CAM - Computer aided manufacturing, Computer Aided Manufacturing (CAM) is the use of software and computer-controlled machinery to automate a manufacturing process. • CAPP - Computer aided process planning, translates design information into the process steps and instructions to efficiently manufacture parts.
• CATD -Computer Aided Tool Design, Computer assistance to be used for developing the tools for manufacture such as jigs and fixtures, dies, and molds.
• CAP-Computer Aided Planning The use of computers for many of the planning functions such as material requirement planning, computer aided scheduling, etc.
• CAQ-Computer Aided Quality Assurance The use of computers and computer-controlled equipment for assessing the inspection methods and developing the quality control and assurance functions.
• CAT-Computer Aided Testing Refers to the software tools that can take a system through its various phases of operations and examine the response against the expected results. The use of computers in manufacturing is a methodological approach to the enterprise in order to improve industrial performance. This requires a range of broad technologies that have become realizable, thanks to the development in computer technology.

Main Applications of Computer Aided Design (CAD)

Solid Modelling This process is used to create solid components of desired shape by joining and cutting different solid volumes. The final solid model is a virtual replica of an actual product but it can be seen and rotated like a real product.

There are two main types: direct where the model can be edited by undoing or modifying the model directly on the 3D; · parametric where the model is constructed using parameters (variable quantities such as measurements) and the model can be edited at any point in its history.

Surface Modelling

• This process is used to create surfaces of desired shape by trimming, stitching and joining different surfaces to create a final shape model.

Assembly

• This process is used to assemble the models created in solid or surface modelling to create a final assembly. This is used to see the actual fitment of all models and see the actual working of assembly.

Drafting Detailing

• This process is used to create the 2D drawings of components or assemblies; usually directly from a 3D model, although 2D CAD can create 2D drawings directly.

Reverse Engineering

• This process is used to convert the real component into 3D CAD Model. Different types of instruments such as laser scanner, white light scanner, CMM (coordinate measuring machine) etc. are used to measure or decode the shape of real model. The virtual model obtained can then be modified in a CAD program.

Benefits of CAD:

• Productivity improvement in Design
• Shorter lead times
• Reduced engineering personnel requirement
• Customer modifications are easier to make
• Rapid response of the design analysis
• Improved accuracy of design
• Avoidance of subcontracting to meet schedules
• Provide better functional analysis to reduce prototype testing
• Assistance in preparation of documentation
• Minimized transcription errors
• Designs have more standardization
• Fewer errors in NC part programming
• Better communication interfaces and greater understanding among engineers, designers, drafters, management and different project groups

CAD applications.