ОСОБЛИВОСТІ АВТОМАТИЗОВАНОГО ПРОЕКТУВАННЯ ДЕТАЛЕЙ СКЛАДНОЇ ФОРМИ І ТЕХНОЛОГІЇ ЇХ ВИГОТОВЛЕННЯ
| Rok vydání: | 2021 |
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| Předmět: | |
| Zdroj: | Збірник наукових праць Дніпровського державного технічного університету (технічні науки); Том 2 № 39 (2021): collection; 59-64 Collection of scholarly papers of Dniprovsk State Technical University (Technical Sciences); Vol. 2 No. 39 (2021): collection; 59-64 |
| ISSN: | 2519-2884 2617-8389 |
| Popis: | The creation of modern high-performance machines often involves design of details with complex surfacese and made with high precision. At the stage of design and preparation of production, project work is carried out using automation tools and modern information and computer technologies. The process of creating a project is accompanied by the preparation of appropriate documentation, sufficient to solve all possible questions, starting with the formation of a design task and disposal of the product at the end of its operation. According to statistics, most details in mechanical engineering are simple in shape, relatively technological in production, and their surfaces are most often described in the drawings by a set of lines and circles (radius of curvature). This approach is economically justified and will ensure the reliable operation of the product during operation. Significant difficulties arise when it is necessary to design parts with surfaces of complex geometric shape, when the geometric parameters are set by coordinate points. The accuracy of surface description depends on the number of such points and the accuracy of numerical data. Typical examples include turbine impellers, parts with aerodynamic surfaces that are used, for example, in the aerospace or rocket industries. The process of manufacturing such parts is accompanied by overcoming specific difficulties in describing complex surfaces at the stages of design and technological preparation, as well as directly in the manufacture of parts on technological equipment, intermediate and final control of geometric accuracy. An option for an effective solution of such problems is to record complex smooth surfaces, predefined by a set of coordinate points, splines. Modern design automation tools make it possible to use this mathematical method for modeling complex geometric objects and use it to calculate the trajectories of the forming tool on CNC machines. On the example of parts from production, which has a complex surface, using computer-aided design systems considered options for making design and technological design decisions for production preparation, equipment design, control the accuracy of shaping when machining on CNC machines. Розглянуті особливості автоматизованого проектування деталей з поверхнями складної форми та розробки технології їх виготовлення в умовах сучасного машинобудівного виробництва. |
| Databáze: | OpenAIRE |
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