Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Aleksandr Bogatov"'
Publikováno v:
Solid State Phenomena. 299:386-391
In this paper the task of the study of the deformation during helical piercing of the metal was set and solved with the use of the DEFORM-3D software. Methodology, that allows to calculate the length of helix lead along the deformation zone, as well
Publikováno v:
Materials Science Forum. 946:788-793
The results of the computer simulation of the tubular billet rotary piercing process are presented. The research methodology of the deformation zone geometric ratios with due regard for the tubular billet change of shape at each helical curve step wa
Publikováno v:
Metallurgist. 62:1039-1047
Thin-walled and extremely thin-walled tubes made of copper alloys, i.e., brass grades L96, L68, L63, LANKMts, and the bronze grades BrOF6.5-0.15, BrOF4-0.25, are in great demand in the aircraft, shipbuilding, automotive, defense, diesel-locomotive bu
Publikováno v:
Solid State Phenomena. 284:557-562
The paper presents the results of the experimental study of the longitudinal and transverse wall thickness variation at the ends of a oil-well tubing during reduction procedure. It is established that the greatest "contribution" to wall thickness dat
Autor:
Aleksandr Bogatov, Danis Sh. Nukhov
Publikováno v:
Solid State Phenomena. 284:265-269
Quality improvement of the structure of thick sheets and plates, increasing the level of mechanical properties, minimization of energy and labor costs in the process of manufacturing could be achieved by using new methods of die forging and rolling w
Publikováno v:
Solid State Phenomena. 284:547-551
Simulation using the DEFORM-3D package of the steady-state pressing mode of a copper busbar on the continuous extrusion line "Conform" was carried out. The nature of the metal flow in the deformation zone was studied. An analysis of the velocities of
Publikováno v:
Solid State Phenomena. 284:552-556
The influence of the friction coefficient and roll calibration on the pipe formation during longitudinal rolling on a short mandrel was investigated using the FEM simulation. The study was carried out for three different roll calibrations: hexagonal,
Publikováno v:
Solid State Phenomena. 265:1048-1052
A new method of hot-rolled pipes rolling on the automatic tandem mill is suggested. It consists of two rolling stands. This method allows achieving the rough pipe preovalisation before reaching the automatic mill. The rough pipe preovalisation provid
Publikováno v:
Solid State Phenomena. 265:1011-1015
The oil industry of Russia currently needs innovative development projects aimed at a radical improvement of the performance of material resources and a decrease of their consumption. One of the most promising trends in corrosion protection is the pr
Autor:
Aleksandr Bogatov, D. R. Salikhyanov
Publikováno v:
Metallurgist. 60:1175-1179
In developing technology for producing bimetal and layered composite materials, considerable attention is devoted to bonding of layers and provision of a strong joint. Several bonding mechanisms are known, although the majority of them are qualitativ