Open AccessNUMERICAL MODELING OF THE OXYGEN LANCE CUTTING PROCESS
Author(s) -
Jurii Tsvetkov,
M.A. Savin,
Vladimir Vasilenko,
Г. А. Цветков,
Evgenij Vahrameev
Publication year - 2021
Publication title -
vestnik permskogo nacionalʹnogo issledovatelʹskogo politehničeskogo universiteta. aèrokosmičeskaâ tehnika
Language(s) - English
Resource type - Journals
eISSN - 2304-6457
pISSN - 2224-9982
DOI - 10.15593/2224-9982/2021.65.06
Subject(s) - mechanical engineering , process (computing) , heat transfer , heat flux , computer science , engineering , materials science , mechanics , physics , operating system
The material cutting is very important and actual industry problem. The oxygen lance cutting is one of the types of most efficiency and cheapest cutting methods. This article has short preview of material cutting methods and has evaluative re-searches of the oxygen lances cutting efficiency. Mathematical model and numerical model is created with two forms: full form with solving of oxygen flow in lance tube and short form with replace lance to surface heat source. Basic theses of the short form and boundary conditions creating with heat transfer theory are showed in the article. The analysis of modeling complexity is represented in the article and the article has numerical solution results of oxygen lance cutting process for steel plate, latten alloy and aluminium oxide plate. The main target of solutions is evaluative processes analysis, numerical model validation and calculation of the approximately prototypes cutting time. The prototype absorbed heat flux and the phase change heat (from sol-id to liquid) is analyzed in these calculations aside from the cutting time. The criterion of quality estimation for calculating results is firing tests for experimental oxygen lances. The article has short comment and the firing tests description with results of the steel tube and steel plate cutting. The cutting time and the cutting velocity was estimated. Additionally the experimental lance usage efficiency (with core rods) was showed for one of the prototypes. This efficiency was compared to the efficiency of tradi-tional oxygen lance.