DETERMINATION OF THE STRESS-STRAIN STATE BY STAMPING EXTRUSION OF AXISYMMETRIC PARTS
Ismailov KhasanTashkent State Technical UniversityAbdullaev FatkhullaTashkent State Technical UniversityAkhmadaliev ShahkrukhTashkent State Technical UniversityZagidulin RafailTashkent State Technical UniversityE UmarovU MardonovK AbdirakhmonovA EshkulovB RakhmatovU ErkinM UmidjonS UmidaU ShoazimovaT NodirT SherzodZ RuslanT SarvarB AzamatJ AndreyM YahyojonN TurakhodjaevS TursunbaevS TashbulatovM KuchkorovaM AkramovS TurakhujaevaA TurakhujaevaJ Kamalov
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The article says that in order to solve problems in the field of metal forming by pressure, programs are needed that could take into account all factors in plastic deformation. The article discusses a method for recovering a deformed mesh from a fibrous macrostructure, determines deforming forces by the upper estimate method, and also proposes a method for solving problems of stamping by extrusion using the upper estimate method. Theoretically restored the second family of lines after cutting the workpiece. The pictures of the fibrous macrostructure, the original square cell of the dividing grid, the calibration graph, the diagrams of the main and average stresses, the diagram of the stamp when extruding axisymmetric parts are shown.
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