FEATURES OF CREATING A SOLID MODELS AND ASSEMBLY OPERATIONS AT CAD-SYSTEMS
Development of information technologies and computer-aided design created conditions for virtual modeling, exploring in real-studied objects. Among the list of all CAD systems should provide separate subgroups of special software (CAD-CAM-CAE system) aimed at solving specific, object - oriented tasks. Software is most often used for mathematical calculations (systems MatLab, MathCAD), analytic study schematic technical objects (software VisSim) and 2D and 3D systems for design (systems AutoCAD, AutoCAD-Inventor, T-Flex, Catia, Pro-Engineering, SolidWorks ets.) in engineering practice. We can implement many options for creating solid models in all above mentioned CAD-systems. Users of the system, who long worked in 2D simulation, at the beginning of the design creates an image in three projections, and then transfer the images in 3D modeling environment. Other users implement the reverse way to prepare design documentation. They create a solid-state model of the object in the first stage, and then, using the tools of CAD-systems in automated mode performing projection drawing. Each method has its advantages and disadvantages, but ultimately will create a set of design documentation and photorealistic images projected product.
The main task for 3D design, in our view, should be seen in a somewhat different perspective. Existing working drawings and ready virtual product does not characterize the process of production, due to the functional design features, the ratio of the volume of recycled material to the volume of the finished product, technological features of the process of formation, the possibility of instrumental support process, and implementation of control operations and so on. Graduate of the technical areas of study from the University must to have new knowledge and skills for 3D solid modeling based on design and technological knowledge about technic features of manufacturing of such details. This approach is important, along with the implementation of 3D printing.
The training of engineers should separate design and technological approaches to method of forming geometric shapes in creating solid-state 3D model of the object; the creation of new facilities is in constant communication with the limiting factor in the operation of the facility. This is a regular control of the designer. The process of drafting appropriate to using assembly blocks that formed from individual parts.