PROSPECTS OF MODERN CASTING METHODS FOR CASES WITH COMPLEX INTERNAL CAVITY

  • 1Federal State Budgetary Institution of Science, Udmurt Federal Research Center of the Ural Branch of the Russian Academy of Sciences, Institute of Mechanics, Izhevsk, RU
  • 2Department of Automation and Production Systems, University of Zilina, Faculty of Mechanical Engineering, Zilina, SK

Abstract

Several methods of production of castings have been studied via the example of a case part, an axial piston pump back-end cover, namely. These methods include sand mold casting, casting into molds made of cold-hardening mixtures, permanent mold casting, lost-wax casting, lost-foam casting. We have considered only those casting methods, which ensure obtaining internal cavities with curved axes without the use of core boxes, inserts, or any mechanic interference. The complex design and technological features of the cover made of gray cast iron show the advantages and disadvantages of each of the casting methods. We have built 3D-models taking into account allowances, laps, roughness, and accuracy of castings for each of the studied methods, i.e. sand mold casting, casting into molds made of cold hardening mixtures, permanent mold casting, lost-wax casting, lost foam casting [Baranov 2017, Domanski 2017, Elbakian 2018]. The examined casting methods have been compared in terms of the technological processes required, the time needed to obtain a casting, staff qualification. The calculation of the material utilization ratio has been carried out. As a result of research conducted, it was discovered that the optimum method of production of castings with complex internal configuration is casting into molds made of cold-hardening mixtures. The research analysis has shown that this method requires less time to prepare for casting production, than other methods. What is more, surface roughness and geometric specifications accuracy are also better than the ones, provided by other casting methods.

Recommended articles

POSSIBILITY AND MEASUREMENT OF EARTHQUAKE PREDICTION BASED ON TREND STUDY OF TOTAL ELECTRON CONTENT (TEC) OF EARTH'S IONOSPHERE

Volodymyr Nahornyi, Anton Panda, Iveta Pandova
Keywords: electron content of the ionosphere | trend | Earthquakes forecasting

MODEL OF CYCLICAL MONITORING AND MANAGING OF LARGE-SCALE FIRES AND EMERGENCIES FOR EVALUATION OF THE REQUIRED NUMBER OF UNMANNED AIRCRAFT SYSTEMS

Denis V. Tarakanov, Vanessa Prajova, Maksim O. Bakanov, Aleksandr V. Kuznetsov, Ksenia L. Domnina
Keywords: reserving the monitoring tools | information support | monitoring planning

NUMERICAL ANALYSIS OF THE FLOW CONDITIONS IN THE AIR DISTRIBUTION ELEMENT

Maria Carnogurska, Miroslav Prihoda, Daniela Popcakova
Keywords: turbulence models | computational fluid dynamics | numerical analysis | velocity conditions | air distribution element

DIAGNOSTICS OF AUTOMATED TECHNOLOGICAL DEVICES

Jozef Peterka, Yury Rafailovich Nikitin, Pavol Bozek
Keywords: Artificial Intelligence | Computer Numerical Control | neural network | mechatronic systems | technological devices | diagnostic