As a technical person, everyone knows that CAD stands for the English phrase: Computer Aided Design, which means computer-aided design.

Watching: What is Cad

What is CAD

?As a technical person, everyone knows that CAD stands for the English phrase: Computer Aided Design, which means computer-aided design.Understand in the most general way. CAD means using computers in the process of sketching, 3D modeling, assembling and publishing drawings. Traditionally, technical drawings are drawn by hand. This work requires a lot of effort and time, especially the complicated details. Therefore, today CAD is widely used in many fields, not only in the field of mechanical engineering, but also in construction, architecture, art, commerce, medicine, … (in the article. My writing this time just wants to narrow down the concept of CAD in the field of mechanical engineering, which should be called MCAD = Mechanical CAD).

CAD is mainly used in product design and development. CAD is mainly for rendering 3D models and 2D drawings. Talking about the current 3D CAD market, the dominant 3 manufacturers are Dassault-CATIA, PTC – Pro/E, Siemens NX. But the market share of these three companies is being fiercely competed by new software manufacturers such as: SolidWorks (a subsidiary of Dassault), TopSolid, Cimatron, Space-E of NTT DATA Engineering System (Japan), IronCAD and one Lately but fairly well-known juniors are SpaceClaim.

With the concept of modern CAD, a CAD software package must include the following 3 main modules:

(y)1. Modeling – Building 3D models, but before we can build 3D models, we have to sketch (Sketching) and then build 3D models (including 3D solid and 3D surface).

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(y)2. Assembly – Assemble single parts into assemblies or assemble small assemblies into larger assemblies.

(y)3. Drafting – Publish technical drawings, also known as fabrication drawings, with information about the section and some technical requirements information such as hardness, surface roughness, etc.

Advantages of CAD (Advantages of CAD):

– Easier to create and fix errors.

– More intuitive because it allows us to observe the model in 3D perspective with many different ways of viewing.

– Save and reuse drawings more easily with a hard disk or CD.

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– Increased accuracy. Because drawing by computer, the output drawing will certainly be much more accurate than doing it by hand.

– Store as a database for easier management. Simultaneously transferring model files is easier than the Internet. Minimize discussion time between engineers in different geographies. Sending and receiving via email only takes a few seconds.

– Easier analysis, simulation and testing of 3D models.

(y) Disadvantages of CAD:

– Time and cost for implementing a CAD system is large.

– Time and cost of training large CAD users. However, now, thanks to the rich resources on the Internet and open discussion forums, it is a bit easier.

– Maintenance and upgrade costs for CAD software are relatively large.

– The time and cost for converting old hand-drawn drawings to CAD is not small.

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Product Lifecycle:

MARKETING=> DESIGN, DESIGN=>MANUFACTURE => MARKETING.

Some product images of students at riclix.com center using CAD software:

Modeling:

Assembly:

Drafting:

CAD courses:

riclix.com Center specializes in training CAD 2D and 3D design courses. With nearly 15 years of experience in training CAD CAM CNC courses, riclix.com always brings the best quality courses, practical application to students’ work. You can refer to the courses. CAD according to the following link: https://riclix.com/thiet-ke-3d-4-2.html

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