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Engineering Design involves the creation of initial blueprints and schematics for different structures, machines and equipment. Most design engineers use Computer Aided Design (CAD) to create and test virtual models. The elements of an engineering design process include: Understanding the customers' needs Defining the essential problems that must be solved to satisfy those needs Conceptualisation of solution through synthesis CAD is the technology used to assist in the creation, modification, analysis, and optimisation of a design. The most basic role of CAD in engineering design is to define the dimensions and framework of design for any mechanical part, an architectural structure, an electronic circuit, a building layout etc. The advantage of CAD systems is that it saves considerable time in product refinement and reduces errors that can creep in the final product. CAD software helps designers to precisely visualise the final product along with its sub-assemblies and constituent parts. Animation may also be used to check how the product would work. This helps designers to make any modifications if required. CAD techniques simplify the process for synthesising, analysing and documenting the design. The actual development of computer aided design and computer aided manufacturing systems began in the 1950s. CAD/CAM went through various phases of development in the last century. Computer aided manufacturing or CAM technology also includes computer systems to plan, manage, and control the manufacturing operations through computer interface with the plant’s production resources. Numerical control is one of the most important domains of CAM and is the technique of using programmed instructions to control a machine tool, which cuts, mills, grinds, punches or turns raw stock into a finished part. Engineering Design using professional CAD services will help designers to simulate and study how the product will behave so that the design may be refined and optimised.
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