What does bar recruitment engineering cad do?

CAD-, a computer-aided design, uses computer equipment to help designers and graphic design.

. CAD for short. In engineering and product design, computers can help designers who are responsible for calculation, information storage and drawing. In computer design, a large number of different options are usually used for calculation, analysis and comparison to determine the best scheme; All kinds of design information, whether numbers, words or graphics, can be stored in the memory of the computer or exist outside, and can be quickly retrieved; Designers usually start with sketches, design sketches to working drawings, and complete a computer; The design results automatically generated by computer can quickly display graphics, which is convenient for designers to design and judge in time; It can also be used to edit, scale, translate and rotate graphics data on the computer. CAD designers can reduce the repetitive work of drawing and other calculations, focus on the design itself, shorten the design cycle and improve the design quality.

Development, the birth of the first computer drawing system in the United States in the 1950s began with a simple passive computer-aided design technology with graphic output. Appeared in the early 1960s, CAD patching technology was commercialized in computer graphics equipment. In the 1970s, a complete CAD system was formed, and the latter appeared to produce realistic graphics raster scanning display, start manual cursor, tablet and other forms of graphic input devices, which promoted the development of CAD technology. In 1980s, with the appearance of powerful VLSI microprocessors and storage devices, engineering workstations and the gradual popularization of CAD technology in small and medium-sized enterprises. Since the mid-1980s, CAD technology has developed towards standardization, integration and intelligence. Some standard graphical interface software and graphics processing capabilities have been started, which has played an important role in promoting CAD technology, software transplantation and data sharing. From the past single function construction system to comprehensive function, and the emergence of computer-aided design and manufacturing assistance to computer-integrated manufacturing system; Solidification technology, network technology, multiprocessor and parallel processing technology are adopted in CAD application, which greatly improves the performance of CAD system. Artificial intelligence and expert system technology were introduced into CAD, and intelligent CAD technology, problem solving ability and CAD system appeared, which greatly improved the design process and made it more automatic. Nowadays, CAD has been widely used in electronic and electrical, science, mechanical design, software development, robotics, clothing, publishing, factory automation, civil engineering, geology, computer art and other fields.