Method for production of hot-rolled semi-finished products from aluminium deformable alloys with scandium
Asymmetric rolling with controlled speed ratios and temperatures addresses the limitations of existing methods by enhancing ductility and reducing cycle time in producing hot-rolled semi-finished products from aluminum alloys.
RU2865607C1Active Publication Date: 2026-07-07FEDERAL STATE BUDGETARY EDUCATIONAL INSTITUTION OF HIGHER EDUCATION MAGNITOGORSK STATE TECH UNIV N AG I NOSOVA
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Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Patents
- Current Assignee / Owner
- FEDERAL STATE BUDGETARY EDUCATIONAL INSTITUTION OF HIGHER EDUCATION MAGNITOGORSK STATE TECH UNIV N AG I NOSOVA
- Filing Date
- 2025-12-30
- Publication Date
- 2026-07-07
AI Technical Summary
Technical Problem
Existing methods for producing hot-rolled semi-finished products from aluminum-magnesium-manganese-zirconium-scandium alloys face limitations in technological plasticity due to restricted reductions per pass, leading to increased cycle times and costs.
Method used
Asymmetric rolling with controlled peripheral speed ratios and temperature conditions during the finishing pass to induce large shear deformations, creating a fragmented metal structure and enhancing process ductility.
Benefits of technology
This approach allows for a single-pass finish rolling with improved technological plasticity, reducing the cycle time and production costs by achieving a finer grain structure and lower hardness values.
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Abstract
FIELD: metallurgy.SUBSTANCE: invention relates to a method for producing hot-rolled semi-finished products from deformable aluminium alloys with scandium. Ingots are produced using the method of semi-continuous casting, two-stage homogenizing annealing, mechanical processing of ingots, heating them to a temperature of 400-440 °C, rough and finish rolling. Finish rolling is carried out in one pass at a temperature of 250-300 °C at the ratio of the circumferential speeds of the rollers: V2 / V1 = 1.1-1.3, where V2 is the peripheral speed of the lower roll, rpm, V1 is the peripheral speed of the upper roll, rpm. Single reduction during finish rolling is 50-65%.EFFECT: semi-finished products that have lower hardness to ensure their high technological plasticity.1 cl, 3 dwg, 1 tbl
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