| Autor: |
Gennadii Khavin, Alexander Permyakov, Magomedemin Gasanov, Viktoria Nevludova |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Advances in Design, Simulation and Manufacturing III ISBN: 9783030507930 |
| DOI: |
10.1007/978-3-030-50794-7_36 |
| Popis: |
The process of machining composite materials, as the phenomenon of targeted destruction of the surface layer, is accompanied by the release of a large amount of heat. That heat largely determines defines the picture of the stress-strain state in the tool-composite contact. The intensity and distribution of the temperature field mainly define the choice of the tool type and processing parameters which provide a given surface quality and productivity. A numerical-analytical model for determining the temperature field for orthogonal cutting of fiberglass with bundles reinforced is presented. The two-dimensional stationary problem of heat conduction of piecewise homogeneous bodies is solved by the boundary element method. An empirical relationship for average temperature and the heat source arising at the contact of the tool flank surface with the material being processed is used for as the boundary conditions in the model. The dependences of the maximum temperature on the feed, speed, and depth of cut are given. It is shown that to prevent the possible occurrence of thermal destruction and burns in each case, there is a limit combination of technological parameters – feed, speed and depth of cut. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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