THE STUDY OF FORMALIZATION AND DEFORMED STATE OF STEP BLANKS DURING THE ENLARGING BY PROFILED DIE
Journal Title: Вісник Кременчуцького національного університету імені Михайла Остроградського - Year 2017, Vol 1, Issue 106
Abstract
Purpose. To establish the regularities of the shape change and the deformed state of stepped hollow forgings during enlarging. Methodology. Modeling the skidding process has been performed using the finite element method in the DEFORM 3D program. Experiments have been conducted in laboratory conditions on lead models using BLELL K-G hydraulic press with a nominal effort of 100 kN. Results. Simultaneous deformation of the protrusion and the ledge leads to the conical forging. Taper on the side of the ledge occurs at the initial stage of rolling and during the whole process it increases. The emergence of a conical shape has been explained by the fact that during slipping, with the same absolute deformation (stroke), the ledge gets more accumulated deformation through a more precise wall. Practi- cal value. Increasing energy consumption in the world requires improvement of NPP constructions. The main responsi- ble unit of the NPP is the reactor block frame. The design of the reactor block frame has been improved by reducing the connecting elements and manufacturing complex profiled parts to increase the life of the reactor block frame. The lit- erature analysis made it possible to establish there is already a sufficient amount of development and industrial testing of the enlarging of profiled forgings.
Authors and Affiliations
М. Kosilov, О. Markov, E. Inchakov
Keywords
Related Articles
- EP ID EP660378
- DOI -
- Views 82
- Downloads 0
ECOLOGICAL FORMALIZATION OF IMPACT DIRECTIONS OF PHOSPHORITE RAW MATERIALS PROCESSING WASTE
Purpose. To study environmental problems of extraction and processing of phosphorite raw materials. Special atten- tion has been paid to the use of phosphate raw materials in the chemical industry. Thus, the propose of s...
IMPROVEMENT OF FORESTRY LANDS ACCOUNTING MECHANISM: THE URGENCY OF THE PROBLEM AND THE DIRECTION OF IMPLEMENTATION
Purpose. The article deals with the problems of collecting processing and data unification about the land of the forestry category. According to statistics, "forests and other forest areas" account for about 17.5% of the...
RESEARCH OF MECHANICAL CHARACTERISTICS OF WELDED-SOLDERED THIN-WALLED STRUCTURES MADE OF HEAT RESISTANT MULTICOMPONENT ALLOYS
Purpose. To establish the regularities of the non-detachable compound formation of a thin-walled elements from the Ni-20Cr-6Al-1Ti-1Y2O3 alloy and to determine the functional condition of the soldering modes influence o...
ON THE STRESS-STRAIN STATE OF THE WALL ROCKS AT THE MAIN ROOF SUDDEN COLLAPSE
Purpose. The purpose of research is to determine the stress-strain state of rock walls at the sudden collapse of the roof rocks in mining steep coal seams in the complex geological conditions at the traditional rock pres...
MONITORING OF TRANSPORT FUNCTIONING WHILE INTERNATIONAL TRANSPORTATION
Purpose. The purpose of the article is to find out the means of monitoring of transport functioning while internation-al transportation. For managers of the transport company it is not enough to obtain information about...