Recycling of Copper Wire Scrap Into Initial Long  Products by Metal Forming

Zagirov, N. N.; Loginov, Yury N.; Ivanov, Evgeny V.

doi:10.18503/1995-2732-2016-14-4-50-56

Cited by 2 publications

(1 citation statement)

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“…To achieve this goal, we analyzed the process of wire drawing from the PdNi-5 alloy for the current operating conditions and the proposed modes using computer simulation. The calculation of the drawing routes was carried out according to the method described in [4,5] using the PROVOL program [6], while the plastic properties of the alloy and the technical characteristics of the drumtype drawing machine used to the maximum (Table 1). Eleven dies arranged in a row with a calibrating zone with a diameter from 3.82 mm to 1.184 mm and an angle of 6 degrees were used as a drawing tool.…”

Section: Methods Of Carrying Out Researchesmentioning

confidence: 99%

Study of the Stress-Strain State of the Process of Drawing Wire from an Alloy of Palladium with Nickel

Sidelnikov

Lopatin

Dobrovenko

et al. 2020

MSF

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This article present the results of studies of the process of wire drawing from the PdNi-5 alloy, performed using computer simulation in the DEFORM 3D software package. В качестве материала для исследований использовали сплав с содержанием 95% палладия и 5% никеля. An alloy with a content of 95% palladium and 5% nickel was a material for research. The patterns of changes in the stress-strain state for the current processing mode determined, and a more rational drawing mode with a redistribution of drawing coefficients along transitions proposed. For the proposed regime, using the created model, the values of drawing stresses, drawing forces and Cockcroft-Latham criterion determined. It was found that the stress distribution in the deformation zone corresponds to the generally accepted laws of their change, and their maximum values are realized in the metal located in the calibrating zone of the drawing die. In addition was revealed that the stresses in the current mode have limit values at the second and fourth passes. The redistribution of deformation indicators in the proposed mode allowed reduce the magnitude of these stresses and, thereby, reduce the likelihood of wire breaks. The maximum value of the Cockcroft-Latham criterion is achieved in the last transitions, but at the same time, destruction will not occur, since they do not exceed the limit value. The drawing force also decreases with the implementation of the proposed mode and does not exceed the permissible values regulated by the technical characteristics of the equipment. Since it is the proposed mode of wire drawing, it is characterized by a decrease in energy power indicators and the likelihood of wire breakage in the process of metal deformation it can be recommend it for implementation in existing production.

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Section: Methods Of Carrying Out Researchesmentioning

confidence: 99%

Study of the Stress-Strain State of the Process of Drawing Wire from an Alloy of Palladium with Nickel

Sidelnikov

Lopatin

Dobrovenko

et al. 2020

MSF

View full text Add to dashboard Cite

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Characterization of a 17-4 PH stainless steel obtained through metal powder Hot Isostatic Pressing process for automotive application

Dabalà

Polyakova

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Steels of the family 17-4 Precipitation Hardening stainless steels are often considered as potential candidates for applications requiring high levels of strength (typically above 600 MPa in tensile strength) and a moderate ductility. The aim of this work is the characterization of a 17-4 precipitation hardening stainless steel obtained through metal powder Hot Isostatic Pressing process. The main purposes of using Hot Isostatic Pressing process are the better chemical composition and microstructure homogeneity, the finer grain size (allowing to higher mechanical properties), and the possibility to obtain net shape products, avoiding subsequent finishing operations. The Hot Isostatic Pressing process temperature does not seem to significantly influence the tensile properties, while, the aging temperature is a key factor: lower aging temperature brings to higher strength and lower ductility. However, a higher influence of the Hot Isostatic Pressing process temperature was detected on the toughness. Improved toughness both at room and at low temperature was obtained by optimizing the aging treatments. An improvement of 32 % in impact energy was obtained by the optimization of the aging process thanks to a higher austenite content, which has shown a nanosized shape between the martensite platelets, in the steel structure.

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Recycling of Copper Wire Scrap Into Initial Long Products by Metal Forming

Cited by 2 publications

References 0 publications

Study of the Stress-Strain State of the Process of Drawing Wire from an Alloy of Palladium with Nickel

Study of the Stress-Strain State of the Process of Drawing Wire from an Alloy of Palladium with Nickel

Characterization of a 17-4 PH stainless steel obtained through metal powder Hot Isostatic Pressing process for automotive application

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