Study of Transient and Steady-State Stages During Two-High and Three-High Screw Rolling of a 12Kh18N10T Steel Workpiece

Skripalenko, M. M.; Романцев, Б. А.; Капуткина, Л. М.; Галкин, С. П.; Skripalenko, M. N.; Чеверикин, В. В.

doi:10.1007/s11015-019-00832-9

Cited by 12 publications

(14 citation statements)

References 11 publications

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“…The possibility of industrial application of the RSR process in the steel rods production was shown by Galkin et al [9] and Negodin [10]. The authors considered the effect of screw rolling in two-and three-roll mills on the microstructure and hardness of stainless steel rods in [11]. The investigations for rods and large diameter pipes from 1 3 143…”

Section: Introductionmentioning

confidence: 99%

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

Gamin

Akopyan

Koshmin

et al. 2020

Archiv.Civ.Mech.Eng

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Section: Introductionmentioning

confidence: 99%

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

Gamin

Akopyan

Koshmin

et al. 2020

Archiv.Civ.Mech.Eng

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“…According to [19], the range of strains and stresses at two-high screw rolling of the AISI 321 steel billet at the stationary stage is less compared with the non-stationary stage. It suggests lower non-uniformity of strains and stresses at the stationary stage and, hence, a lower risk of a fracture.…”

Section: Resultsmentioning

confidence: 99%

Comparative analysis of damage criteria for screw rolling using computer simulation

Skripalenko¹,

Романцев²,

Галкин³

et al. 2020

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Two-high screw rolling of billets was carried out using a MISIS-130D rolling mill. AISI 321 steel billets were deformed with feed angles of rolls of 6°, 12°, 18° and 24°. The diameter reduction was 17%, with the initial billets’ diameter being 60 mm. An axial fracture, the so-called Mannesmann effect, of the billets was observed after screw rolling. The experimental rolling was simulated using QForm finite element method software. Initial and boundary conditions were set in concordance with the experimental rolling. Several damage criteria were used for fracture prediction during computer simulation. The results of computer simulation of fracture prediction were compared with the billets fracture after screw rolling for stationary and non-stationary stages. The most effective parameter (in terms of fracture prediction) is triaxiality. The distribution of this parameter showed that the higher the feed angle value is, the lower the fracture risk is. Notably, the risk of fracture is lower at a stationary stage compared with the same risk of fracture at a non-stationary stage; the listed trends agree with experimental rolling results. The Oyane, Ayada, Brozzo, and Cockroft-Latham Normalized criteria are partly effective. These criteria are ineffective for fracture prediction 6 degrees feed angle of rolls because they showed that fracture is most probable at the billet’s surface, which contradicts the experimental rolling results. All these criteria are partly effective when predicting a less fracture risk at a stationary stage compared with the same criteria at a non-stationary stage or when predicting a decrease of fracture with increasing the rolls feed angle.

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“…The forming character during screw rolling certainly influences microstructure formation. For instance, the variation of the anisotropy index at the stationary stage of three-high screw rolling was shown in [ 21 ]. It is shown in [ 21 ] that the stitched structure of the rolled billet’s longitudinal section is 15–17 degrees oriented in the rolling direction.…”

Section: Introductionmentioning

confidence: 99%

“…For instance, the variation of the anisotropy index at the stationary stage of three-high screw rolling was shown in [ 21 ]. It is shown in [ 21 ] that the stitched structure of the rolled billet’s longitudinal section is 15–17 degrees oriented in the rolling direction. This means that the feed angle of rolls was 18 degrees.…”

Section: Introductionmentioning

confidence: 99%

Creation of 3D Model of Stainless-Steel Billet’s Grain after Three-High Screw Rolling

et al. 2022

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The three-high screw rolling of AISI 321 billet from 60 mm to 52 mm diameter was performed using an MISIS-100T mill. When screw rolling was carried out, a set of sections were made in the billet’s cross-section at the stationary stage of screw rolling. SolidWorks was applied to make the 3D model of the rolled billet’s grain using microstructure images. The same technique was applied for the creation of the 3D model of a nondeformed billet’s grain. A comparison of the 3D models’ shape and dimensions before and after screw rolling was made. It was established that, compared to the nondeformed grain model, the screw rolled billet’s grain model was twisted and elongated along some angle in the rolling direction. This angle’s value is commensurable to the roll’s feed angle during the experimental rolling. Anisotropy indexes of before and after rolling grain models were estimated and compared to the anisotropy indexes obtained via the sections’ analysis in earlier research. Difference did not exceed 5%.

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Study of Transient and Steady-State Stages During Two-High and Three-High Screw Rolling of a 12Kh18N10T Steel Workpiece

Cited by 12 publications

References 11 publications

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

Microstructure evolution and property analysis of commercial pure Al alloy processed by radial-shear rolling

Comparative analysis of damage criteria for screw rolling using computer simulation

Creation of 3D Model of Stainless-Steel Billet’s Grain after Three-High Screw Rolling

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