CAD is the use of a wide range of computer-based tools that assist engineers, architects and other design professionals in their design activities. Save on Dewalt hand tools, Ingersoll-Rand and lots more. It is the main geometry authoring tool within the Product Lifecycle Management process and involves both software and sometimes special-purpose hardware. Current packages range from 2D vector based drafting systems to 3D parametric surface and solid design modellers.
CAD is sometimes translated as "computer-assisted", "computer-aided drafting", or a similar phrase. Related acronyms are CADD, which stands for "computer-aided design and drafting", CAID for Computer-aided Industrial Design and CAAD, for "computer-aided architectural design". All these terms are essentially synonymous, but there are some subtle differences in meaning and application.
CAD is used to design and develop products, which can be goods used by end consumers or intermediate goods used in other products. CAD is also extensively used in the design of tools and machinery used in the manufacture of components. Sales of automotive tools and equipment. CAD is also used in the drafting and design of all types of buildings, from small residential types (houses) to the largest commercial and industrial types (hospitals and factories).
CAD is used throughout the engineering process from conceptual design and layout, through detailed engineering and analysis of components to definition of manufacturing methods.
The software package may produce its results in several formats, but typically provides a graphically-based result which is then able to be used to create concept sketches for assessment and approval, and eventually working drawings. An example would be a structural design package used to assess the integrity of a steel-framed building by performing all the calculations necessary to determine the size and strength (and placement?) of the components, and the effect of such things as wind-loading. The output commonly is a schedule of materials and some basic sketches which can be transferred to a CAD software package for final production of construction drawings.
Computer-aided drafting, however, commonly refers to the actual technical drawing component of the project, using a computer rather than a traditional drawing board. The input into this aspect of the design process may come from specialised calculation packages, from pre-existing component drawings, from graphical images such as maps, from photos and other media, or simply from hand-drawn sketches done by the designer. Automotive Tools & Equipment for your auto repair facility. The operator's task is to use the CAD software to meld all the relevant components together to produce drawings and specifications which can then be used to estimate quantities of materials, determine the cost of the project and ultimately provide the detailed drawings necessary to build it.
The spectrum of architectural and engineering projects commonly documented with computer-aided drafting is broad, and includes architectural, mechanical, electrical, structural, hydraulic, interior design, garden design, civil construction. CAD may also provide input to other forms of design communication such as 3D visualisations, model construction, animated fly-throughs, to name a few.
Computer-aided drafting software is also a basic tool used in other disciplines related to Architecture, for example Civil Engineering, for site design, for instance roads, grading and drainage, in mapping and cartography, in the production of plans and sketches for a variety of other purposes (such surveyor's plans and legal descriptions of land), and as the input format to geographic and facilities information systems. Additionally, landscape architecture and interior design is often also commonly performed using CAD software
Electronic design automation (EDA) includes PCB design, intelligent wiring diagrams (routing) and component connection management.
2D and 3D CAD systems are sometimes used for graphically represented of plant layout, usually with the aid of specific machine geometry libraries and layout tools. Although this is often done with specialist real-time process simulation tools based on Product visualization and Manufacturing Process Management technologies. AST Automotive Signal Tester with Logic. It should be large in Land
Computer-aided design software is also starting to be used to develop software applications. Software applications share many of the same Product Life Cycle attributes as the manufacturing or electronic markets. As computer software becomes more complicated and harder to update and change, it is becoming essential to develop interactive prototypes or simulations of the software before doing any coding. The benefits of simulation before writing actual code cuts down significantly on re-work and bugs.
Designers have long used computers for their calculations. Initial developments were carried out in the 1960s within the aircraft and automotive industries in the area of 3D surface construction and NC programming, most of it independent of one another and often not publicly published until much later. Some of the mathematical description work on curves was developed in the early 1940s by Isaac Jacob Schoenberg, Apalatequi (Douglas Aircraft) and Roy Liming (North American Aircraft), however probably the most important work on polynomial curves and sculptured surface was done by Pierre Bezier (Renault), Paul de Casteljau (Citroen), Steven Anson Coons (MIT, Ford), James Ferguson (Boeing), Carl de Boor(GM), Birkhoff(GM) and Garabedian(GM) in the 1960s and W. DMS Tools automotive tools for. Gordon (GM) and R. Riesenfeld in the 1970s.
It is argued that a turning point was the development of SKETCHPAD system in MIT in 1963 by Ivan Sutherland (who later created a graphics technology company with Dr. David Evans). The distinctive feature of SKETCHPAD was that it allowed the designer to interact with computer graphically: the design can be fed into the computer by drawing on a CRT monitor with a light pen. Effectively, it was a prototype of graphical user interface, an indispensable feature of modern CAD.
First commercial applications of CAD were in large companies in the automotive and aerospace industries, as well as in electronics. Automotive Tools. Only large corporations could afford the computers capable of performing the calculations. Notable company projects were at GM (Dr. Patrick J. Hanratty) with DAC-1 (Design Augmented by Computer) 1964; Lockhead projects; Bell GRAPHIC 1 and at Renault (Bezier) – UNISURF 1971 car body design and tooling.
The most influential event in the development of CAD was the founding of MCS (Manufacturing and Consulting Services Inc. ) in 1971 by Dr. P. Auto service tools and equipment for auto shop service equipment online sales of auto shop service tools, all the automotive tools and shop equipment you need. J. Hanratty, who wrote the system ADAM (Automated Drafting And Machining) but more importantly supplied code to companies such as McDonnell Douglas (Unigraphics) Computervision(CADDS), Calma, Gerber, Autotrol and Control Data.
As computers became more affordable, the application areas have gradually expanded. The development of CAD software for personal desk-top computers was the impetus for almost universal application in all areas of construction.
Other key points in the 1960s and 1970s would be the foundation of CAD systems United Computing, Intergraph, IBM, Intergraph IGDS in 1974 (which led to Bentley MicroStation in 1984)
CAD implementations have evolved dramatically since then. Initially, with 2D in the 1970s, it was typically limited to producing drawings similar to hand-drafted drawings. Advances in programming and computer hardware, notably solid modelling in the 1980s, have allowed more versatile applications of computers in design activities. Get it done now!. Key product for 1981 were the solid modelling packages - Romulus (ShapeData) and Uni-Solid (Unigraphics) based on PADL-2 and the release of the surface modeler Catia (Dassault). Autodesk was founded 1982 by John Walker, which led to the 2D system AutoCAD. The next milestone was the release of Pro/Engineer in 1988, which heralded greater usage of feature based modeling methods. Also of importance to the development of CAD was the development of the B-rep solid modeling kernels (graphics engines) Parasolid(ShapeData) and ACIS (Spatial Technology Inc. ) at the end of the 1980s beginning of the 1990s, both inspired by the work of Ian Braid. This led to the release of mid-range packages such as SolidWorks in 1995 SolidEdge (Intergraph) in 1996.
Today CAD is not limited to drafting and rendering, and it ventures into many more "intellectual" areas of a designer's expertise. Offering tools and accessories, with OEM services that conform to ISO 9001:2000 standards. computer aided design used in may buisnesses and organisation around the world
This is an ever changing industry with many well known products and companies being taken over and merged with others. There are many CAD software products currently on the market. More than half of the market is however covered by the four main PLM corporations Autodesk, Dassault Systemes, PTC, and UGS Corp. , but there are many other CAD packages with smaller user bases or covering niche user areas.
Packages can be classified into 3 types: 2D drafting systems (e. g. AutoCAD, Microstation); mid-range 3D solid feature modellers (e. Offers tools for auto repair, construction, computer repair, and woodworking. g. SolidWorks, SolidEdge, Alibre Design); and high-end 3D hybrid systems (e. g.
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