Using of Design of Experiments for Describing of Impact of Cold Drawing Process Parameters on Plastic Properties of Wire for Steel Ropes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F15%3A86095776" target="_blank" >RIV/61989100:27360/15:86095776 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Using of Design of Experiments for Describing of Impact of Cold Drawing Process Parameters on Plastic Properties of Wire for Steel Ropes

Popis výsledku v původním jazyce

The present paper approaches the topic from two perspectives. The first one is a mathematical approach, using which various experimental designs will be compared. From the metallurgical perspective, the effects of various factors and their interactions on drawn wire properties will be explored. Shear deformation of subsurface layers in wire drawing leads to marked non-uniformity of strain across the wire cross section. In wires intended for products operating under dynamic loads, such as ropes and springs, the variance in work hardening level across the cross section may cause fatigue fractures. In this paper, we used physical modelling in an attempt to show how the non-uniformity of strain in drawing can be reduced by changing key process parameters. For this purpose, a full factorial experiment involving three factors was undertaken. (The factors included the approach angle 2α, single pass strain Qd or the number of passes n and type of scale removal (pickling or 2 axis bending + brushing.) The simulation involved drawing of 2.5 mm C78DP steel wire from 5.5 mm thick rolled rod. Koch single wire drawing block with a rotating die holder was used for the modelling. In this paper, we evaluate the influence of several factors on final plastic properties of the wire (number of torsion to fracture, number of bends to fracture). Tensile tests and metallographic analysis were also conducted.

Název v anglickém jazyce

Using of Design of Experiments for Describing of Impact of Cold Drawing Process Parameters on Plastic Properties of Wire for Steel Ropes

Popis výsledku anglicky

The present paper approaches the topic from two perspectives. The first one is a mathematical approach, using which various experimental designs will be compared. From the metallurgical perspective, the effects of various factors and their interactions on drawn wire properties will be explored. Shear deformation of subsurface layers in wire drawing leads to marked non-uniformity of strain across the wire cross section. In wires intended for products operating under dynamic loads, such as ropes and springs, the variance in work hardening level across the cross section may cause fatigue fractures. In this paper, we used physical modelling in an attempt to show how the non-uniformity of strain in drawing can be reduced by changing key process parameters. For this purpose, a full factorial experiment involving three factors was undertaken. (The factors included the approach angle 2α, single pass strain Qd or the number of passes n and type of scale removal (pickling or 2 axis bending + brushing.) The simulation involved drawing of 2.5 mm C78DP steel wire from 5.5 mm thick rolled rod. Koch single wire drawing block with a rotating die holder was used for the modelling. In this paper, we evaluate the influence of several factors on final plastic properties of the wire (number of torsion to fracture, number of bends to fracture). Tensile tests and metallographic analysis were also conducted.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/LO1203" target="_blank" >LO1203: Regionální materiálově technologické výzkumné centrum - Program udržitelnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

METAL 2015 : 24th International Conference on Metallurgy and Materials : conference proceedings : June 3rd-5th 2015, Hotel Voroněž I, Brno, Czech Republic, EU

ISBN

978-80-87294-62-8

ISSN

—

e-ISSN

neuvedeno

Počet stran výsledku

7

Strana od-do

445-451

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

3. 6. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000374706100068