Complete Evaluation of Extruded Aluminum Section and Semiproduct Mechanical Properties Under Conditions of Typical Regional Manufacturer Altek

Смирнов, Е. Н.; Sklyar, V. A.; Mitrofanov, M. V.; Smirnov, O. E.; Belevitin, V. A.; Смирнов, А. Н.

doi:10.1007/s11015-018-0580-7

Cited by 4 publications

(2 citation statements)

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“…In the metal forming theory, ductility is evaluated by the invariant (independent on a coordinate system) characteristic, namely the limiting degree of shear strain, which can be endured by metal before the fracture Λr [23][24][25][26][27]. So in the course of the experiments, copper ductility was evaluated with the specific elongation δ and the contraction ψ in % under the loading of samples according to the diagram of single-axis tension, their interrelation with the limiting degree of shear strain Λr [28] can be found from the following formulae:…”

Section: Discussionmentioning

confidence: 99%

Investigation of Plastic Properties of Ø8 Rod Made of Fire-Refined Copper of Kmor Grade

Smyrnov¹,

Sklyar²,

Gorozhankin³

2020

MSF

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Results of the comparative ductility evaluation of Ø8 rods made of copper of the KM and KMor grades are discussed. It has been found out that plastic properties of KM and KMor grade rods at room temperature practically do not differ in their specific elongation and after-fracture contraction indices. At the same time, the ductility indices of KMor rod at temperature +850 °С became, practically, half-values. Increased spread of physical property values particularly the specific ohmic resistance of the rod KMor can be explained by the cumulative effect of variations of the chemical metal composition, and changes in process variables of the process (for example, unstable density of a cast bar), that initiate an occurrence of tension stresses during rolling. Calculation data of the limiting drawing ratio μr demonstrated that its value must not exceed 1.475.

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Section: Discussionmentioning

confidence: 99%

Investigation of Plastic Properties of Ø8 Rod Made of Fire-Refined Copper of Kmor Grade

Smyrnov¹,

Sklyar²,

Gorozhankin³

2020

MSF

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“…The analysis of the system of technology of small and medium-sized regional manufacturers of press aluminum profiles (the aggregate release of products, made of such profiles, exceeds 50% of a total production of secondary aluminum in Russia) shows that in most cases these are some typical goods. However, in terms of providing the required metallurgical quality of either the raw materials for a presswork line (cast ingots with a circular cross-section -so-called "pillars") or ready-made aluminum profiles, the analysis of currently existing process flow diagrams at the number of regional facilities allowed revealing a typical drawback: the minimization of the quantity of structural components assuring the management and control of the quality of raw materials, semiproduct and ready products on all processing [5]. Within the emerging trend of the reduction in the thickness of ready profile components (up to 0.6 mm and less) at the preservation of general structural integrity, the issues of increasing the quality of ready products become quite relevant.…”

Section: Introductionmentioning

confidence: 99%

Evaluating Plasticity of Alloy AD31 on Ingot Height

Smyrnov¹,

Sklyar²,

Parpiev³

2021

SSP

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The authors present the results of evaluating the distribution of plastic properties on the height of a log ingot with the diameter of 145 mm, obtained by means of semi-continuous casting, from the aluminum alloy AD31. The authors study semi-continuous alloys of three manufacturers. One part of ingots was obtained with the use of only primary aluminum, secondary raw materials and secondary raw materials with the addition of primary aluminum. With the purpose of stabilizing the process of presswork the authors define the values of yield stress in the ingot lower and upper parts and study its microstructure. The research was conducted for the ingots without thermal treatment after accelerated homogenization. It is shown that the ingots, produced with the use of primary aluminum only, have less scattered plastic properties in terms of the height. That is why, for the case of press-working the items with thin components, it is reasonable to use the ingots from primary aluminum.

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Technological Aspects of Minimization of the Sizes of a Continuous Casting-Rolling Unit in the Production of Wire Rods from Fire-Refined Copper

Смирнов¹,

Skliar²,

Gorozhankin³

et al. 2020

Metallurgist

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Complete Evaluation of Extruded Aluminum Section and Semiproduct Mechanical Properties Under Conditions of Typical Regional Manufacturer Altek

Cited by 4 publications

References 0 publications

Investigation of Plastic Properties of Ø8 Rod Made of Fire-Refined Copper of Kmor Grade

Investigation of Plastic Properties of Ø8 Rod Made of Fire-Refined Copper of Kmor Grade

Evaluating Plasticity of Alloy AD31 on Ingot Height

Technological Aspects of Minimization of the Sizes of a Continuous Casting-Rolling Unit in the Production of Wire Rods from Fire-Refined Copper

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