Search academic texts

Registration Number

0223U001021, 0121U111721 , R & D reports

Title

Investigation of the deformation regularities and development of technologies with movable multi-ple rams for manufacturing complex parts with additional kinematic influence

popup.stage_title

Head

Aliiev Ihramotdin S., д.т.н.

Registration Date

24-01-2023

Organization

Donbass State Engineering Academy

popup.description2

The object:resource-saving technological processes and equipment for forging parts from structural materials. Methods: finite element method, energy method of kinematic modules, strain gauge method - for experimental research. The purpose:to increase the efficiency of technologies for manufacturing critical parts due to the use of new kinematic schemes for forging with an additional effect on the billet. The main directions of technologies development and methods of precision forging are considered and systematized. Promising methods of deformation include combined extrusion with additional force and kinematic influence. The methods of volumetric plastic deformation research and the construction of equipment for extruding parts of complex shape are considered. Using the energy method by triangular and trapezoidal modules with an inclined boundary and models of extrusion processes with complex hollow parts were developed and calculated engineering dependencies were obtained, the adequacy of which was confirmed by experiments. Using the finite element method, the influence of the deformation rate on the force and temperature regimes of extrusion was considered. The regularities in the distribution of stress-strain state parameters in hollow parts such as sleeves and bowls, as well as in parts with flanges obtained by extrusion using different kinematic variants, were determined. The assessment of uneven deformation distribution during extrusion is defined. Offered: design methods, programs for calculating technological parameters, new extrusion methods; developed processes and dies for extruding complex parts in movable and multiple rams. The novelty: new kinematic modules of triangular and trapezoidal shape with a curvilinear border, which made it possible to develop models of deformation processes in complex parts; for the first time, the influence character of the deformation rate in products in the force and temperature conditions of the process.

Product Description

popup.authors

Abhari Payman B
Aliiev Igramotdin S
Hrudkina Nataliya S.
Kartamyshev Dmytro O.
Levchenko Volodymyr M.
Malii Khrystyna V.
Tahan Liubov V.