Peculiarities of Control over Electron-Beam Additive Form Manufacturing
| Autor: | A. V. Shcherbakov, R. V. Rodyakina, A. S. Kozhechenko, V. P. Rubtsov, N. M. Vakhmyanin, D. A. Gaponova |
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| Rok vydání: | 2019 |
| Předmět: |
Temperature control
Computer science 020209 energy Enthalpy of fusion Mechanical engineering 02 engineering and technology Surfaces and Interfaces 021001 nanoscience & nanotechnology Industrial and Manufacturing Engineering Surfaces Coatings and Films Control system Heat transfer 0202 electrical engineering electronic engineering information engineering Weld pool Cathode ray Process control 0210 nano-technology Overheating (electricity) |
| Zdroj: | Surface Engineering and Applied Electrochemistry. 55:232-240 |
| ISSN: | 1934-8002 1068-3755 |
| DOI: | 10.3103/s1068375519020133 |
| Popis: | This work analyzes the manufacturing process of an electron-beam additive form by heating as a result of remelting the supplied filler wire as a control object. Control actions and output values are designated that can be used in constructing a control systems with feedback. A mathematical modeling technique is used to study heat transfer in a nonstationary formulation, taking into account the influence of the latent heat of fusion. The transient processes of temperature changes were studied at points, whose values can be used to estimate the extension of the weld pool and the degree of metal overheating. An analysis of the results of computational experiments is carried out, and the range of variations of control actions are shown. The possibility of an independent temperature control in the range of the beam and the extension of the liquid bath is also justified. Recommendations are given for the technical implementation of the system and the option of implementing local regulators, types of sensors, and their installation. |
| Databáze: | OpenAIRE |
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