New Type of Device for Achievement of Grain Refinement in Metal Strip

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F15%3A86097429" target="_blank" >RIV/61989100:27230/15:86097429 - isvavai.cz</a>

Result on the web

<a href="http://www.scientific.net/AMR.1127.91.pdf" target="_blank" >http://www.scientific.net/AMR.1127.91.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/AMR.1127.91" target="_blank" >10.4028/www.scientific.net/AMR.1127.91</a>

Result language

angličtina

Original language name

New Type of Device for Achievement of Grain Refinement in Metal Strip

Original language description

DRECE - Dual Rolls Equal Channel Extrusion" (dual rolls pressure combined with equal channel extrusion) method is used for production of metallic materials with very fine grain size (hereinafter referred to as UFG structure - Ultrafine Grain Size). During the actual forming process the principle of severe plastic deformation is used. The device is composed of the following main parts: "Nord" type gearbox, electric motor with frequency speed converter, multi-plate clutch, feed roller and pressure rollers with regulation of thrust, and of the forming tool itself - made of Dievar steel type. Metallic strip with dimensions 58x2x1000 mm (width x thickness x length) is inserted into the device. During the forming process the main cylinder in synergy with the pressure roller extrude the material through the forming tool without any change of cross section of the strip. In this way a significant refinement of grain is achieved by severe plastic deformation. This method is used for various types of metallic materials, non-ferrous metals and their alloys. Forming process is based on extrusion technology with zero reduction of thickness of the sheet metal with the ultimate aim - achieving a high degree of deformation in the formed material. The DRECE device is also being verified from the viewpoint of achievement of a UFG structure in a blank of circular cross-section (wire) with diameter of o 8 mm x 1000 mm (length).

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JR - Other machinery industry

OECD FORD branch

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Project

<a href="/en/project/2A-1TP1%2F124" target="_blank" >2A-1TP1/124: Investigation of extreme deformation conditions on metals submicrostructure and testing methods to diagnostic their technological properties</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Advanced Materials Research

ISSN

1662-8985

e-ISSN

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Volume of the periodical

1127

Issue of the periodical within the volume

Neuveden

Country of publishing house

CH - SWITZERLAND

Number of pages

7

Pages from-to

91-97

UT code for WoS article

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EID of the result in the Scopus database

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