Application of Statistical Representation of Microstructure during Simulation of Ferritic-Pearlitic Steel Wire Drawing

2020 ◽  
Vol 989 ◽  
pp. 691-698
Author(s):  
Dmitriy Konstantinov ◽  
Dinara Emaleeva ◽  
Alexander Pesin
Keyword(s):  
Steel Wire ◽  
Computing Time ◽  
Pearlitic Steel ◽  
Multiscale Model ◽  
Wire Drawing ◽  
Local Deformation ◽  
Drawing Process ◽  
Steel Microstructure ◽  
Statistical Representation ◽  
Metal Volume

Development of modelling method, which allows prediction of the properties distribution in the metal volume with the behavioral features of the microstructure under the influence of the deformation during drawing, was the objective of the paper. Multiscale model of rod drawing process was proposed. To save computing time, statistical representation of the microstructure was applied. Statistically Similar Representative Volume Element (SSRVE), representing ferritic-pearlitic steel microstructure, was developed. Simulations of the drawing process were performed, and local deformation of each structural component was predicted. Selected results, as well as discussion of the effect of microstructure on obtained stress and strain distributions, are presented in the paper.

Computer Simulation of Micro-Mechanic in Pearlitic Steel Wire Drawing

2020 ◽  
Vol 989 ◽  
pp. 684-690
Author(s):  
Dmitriy Konstantinov ◽  
Boris Zaritskiy ◽  
Denis Pustovoytov
Keyword(s):  
Computer Simulation ◽  
Strain Localization ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Interlamellar Spacing ◽  
Pearlitic Steel ◽  
Wire Drawing ◽  
Metallographic Analysis ◽  
Drawing Process ◽  
The Wire

Cold-drawn high-carbon steel wire with pearlite microstructure is one of the most popular raw materials for modern reinforcing ropes. Lamellae thinning, changes in interlamellar interface and metallographic texture, strain localization is the main property-forming phenomena in the wire drawing process. However, the experimental study of these phenomena dynamics is difficult and time-consuming. Drawing process of pearlitic steel wire was investigated. Behavior of pearlite colonies on the surface and the central layer of the wire were researched, based on the multiscale computer simulation. Cementite lamellae orientation in relation to the drawing axis, interlamellar spacing and shape of cementite inclusions were key factors. Regularities of the pearlite colonies reorientation, changing the shape and size of cementite lamellae and strain localization in the ferrite were established on the basis of FEM. It was established that the cementite lamellae, that are parallel to the drawing axis, had the maximum thinning. Interlamellar distance in pearlite colonies with such lamellae changed most intensively. Cementite lamellae, that are perpendicular to the drawing axis, are the most susceptible to fracture. It was found out that for certain values interlamellar distance this effect can be reduced. Intensive reorientation of pearlite colonies in relation to the drawing axis was observed in the case of their location at an angle to the drawing direction. At the same time, there was a significant bending of cementite lamellae and their susceptibility to fragmentation. Estimated values of the wire mechanical properties were compared with a real experiment. The simulation results were verified by metallographic analysis.

Evolution of cementite morphology in pearlitic steel wire during wet wire drawing

2010 ◽  
Vol 61 (1) ◽  
pp. 65-72 ◽  
Author(s):  
Xiaodan Zhang ◽  
Andrew Godfrey ◽  
Niels Hansen ◽  
Xiaoxu Huang ◽  
Wei Liu ◽  
...  
Keyword(s):  
Steel Wire ◽  
Pearlitic Steel ◽  
Wire Drawing

Delamination of Pearlitic Steel Wires: Role of Strain Partition on Mechanical Properties of Pearlitic Wires

2021 ◽  
Vol 1016 ◽  
pp. 413-417
Author(s):  
Akula Durga Vara Prasad ◽  
Subrata Mukherjee
Keyword(s):  
Steel Wire ◽  
Cold Drawing ◽  
Pearlitic Steel ◽  
Wire Drawing ◽  
Strain Partitioning ◽  
Strain Mode ◽  
Steel Wires ◽  
Torsional Properties ◽  
Multiple Stages

Cold drawn wires were produced by drawing the pearlitic wire rod (5.5 mm diameter). Cold drawing involved multiple stages to a final drawing strain of ≈ 2.5. The cold drawing alters the pearlite morphology. During the wire drawing, the change in morphology is location dependent. This will create the gradient in stain and strain mode between the surface and the center. This led to have a strain partition among ferrite and cementite phases. The strain partitioning plays a major role in the final tensile and torsional performance of the cod drawn wire. The present work dealt with the experimental and their numerical simulations of stress gradients and the role of pearlite morphology on tensile and torsional properties of the pearlitic steel wire.

Effects of Process Parameters on the Shape Changes of a Micro Cementite Band during Macro Drawing of a Pearlitic Steel Wire

2018 ◽  
Vol 792 ◽  
pp. 41-46
Author(s):  
Yong Sin Lee
Keyword(s):  
Finite Element ◽  
Process Parameters ◽  
Steel Wire ◽  
Pearlitic Steel ◽  
Wire Drawing ◽  
Material Point ◽  
Initial Orientation ◽  
Element Analysis ◽  
Unit Model ◽  
Shape Changes

This paper is concerned with the effects of process parameters on the shape changes of a micro cementite band in wire drawing of pearlitic steel. Two process parameters, an initial orientation of cementite band and its location, are chosen. In this study, a macro deformation behavior at a material point in macro wire drawing of pearlitic steel is represented by an averaged behavior of a unit model. This unit model is simulated by a micro finite element analysis, while a macro wire drawing of pearlitic steel is simulated by finite element method at a continuum scale. The shape changes of a cementite band would be traced, by solving the unit problem with the changes of boundary conditions corresponding to the macro deformation behaviors of material points along a particle path. The predicted shapes of cementite bands are compared to those by the experiments reported in the literature. Qualitative comparisons between the current predictions and experiments verify the proposed method. Effects of an initial orientation of cementite band and its location on its shpae changes are presented. It was also noted that the most micro deformation in a unit model occurs in the deformation zone.

Experimental and numerical analysis of the deformation in mild steel wire during dieless drawing

2002 ◽  
Vol 216 (3) ◽  
pp. 167-178 ◽  
Author(s):  
P Tiernan ◽  
M T Hillery
Keyword(s):  
Mild Steel ◽  
Steel Wire ◽  
Wire Drawing ◽  
Fe Model ◽  
Drawing Process ◽  
Distribution Profile ◽  
Dieless Drawing ◽  
The Wire ◽  
Drawing Dies ◽  
Good Agreement

Dieless wire drawing is the process of causing a reduction in a wire diameter without the use of conventional wire drawing dies. The wire, axially loaded with a force, is heated to an elevated temperature to initiate plastic deformation. The mechanics of this novel drawing process and a theoretical analysis of the deformation are discussed in this paper. The results of an experimental drawing programme carried out with mild steel wire at temperatures between 400 and 900°C are also presented. Mathematical models were developed and used to describe and predict the process deformation and both the stress and temperature distribution profile along the workpiece. A machine was designed and manufactured to facilitate an experimental programme of dieless drawing. The machine permitted continuous drawing of wire, while the reduction ratio, drawing load and temperature were automatically controlled using a personal computer. A finite element (FE) model of the wire was developed, and the results obtained from the FE analysis show good agreement with those obtained from both the experimental work and the mathematical modelling. Results obtained confirm that a complicated interdependence of the process parameters exists during the dieless drawing process.

Pass Schedule of Wet-Wire Drawing Process with Ultra High Speed for Tire Steel Cord

2007 ◽  
Vol 340-341 ◽  
pp. 683-688 ◽  
Author(s):  
Sang Kon Lee ◽  
Won Ho Hwang ◽  
Dae Cheol Ko ◽  
Byung Min Kim ◽  
Woo Sik Ko
Keyword(s):  
Carbon Steel ◽  
High Speed ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Drawing Process ◽  
High Carbon ◽  
Wire Temperature ◽  
Steel Cord ◽  
The Wire

High speed multi pass wet wire drawing has become very common for production of high carbon steel cord because of the increase in customer demand and production rates in real industrial fields. Although the wet wire drawing is preformed at a high speed usually above 1000 m/min, greater speed is required to improve productivity. However, in the high carbon steel wire drawing, the wire temperature rises greatly as the drawing speed increase. The excessive temperature rise makes the wire more brittle and finally leads to wire breaks. In this study, the variations in wire temperature during wet wire drawing process were investigated. A multi pass wet wire drawing process with 21 passes, which was used to produce steel cord, was redesigned by considering the increase in temperature. Through a wet wire drawing experiment, it was possible to increase the maximum final speed from 1000 m/min to 2000 m/min.

The Influence the Temperature of Drawing Process on the Transformation Retained Austenite into Martensite for TRIP Steel Wires

2015 ◽  
Vol 220-221 ◽  
pp. 661-666
Author(s):  
Sylwia Wiewiórowska ◽  
Zbigniew Muskalski ◽  
Marek Siemiński
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Trip Steel ◽  
Retained Austenite ◽  
Steel Wire ◽  
Wire Drawing ◽  
Drawing Process ◽  
Wire Surface ◽  
Wire Axis ◽  
Steel Wires

For the numerical analysis of TRIP steel wire drawing process, the Drawing 2d programme based of finite element method, has been used. The process was run following two variants, with small and large partial drafts for two drawing speeds: 1.11; 0.23 m/s. The investigations carried out allowed a relationship between temperature of drawing wires and the amount of retained austenite for wire surface and for wire axis.

Development of Wet Wire Drawing Machine and Pass Schedule With Ultra High Speed for High Carbon Steel Wire

2007 ◽  
Author(s):  
S. K. Lee ◽  
B. M. Kim ◽  
W. S. Ko
Keyword(s):  
Carbon Steel ◽  
High Speed ◽  
Steel Wire ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Drawing Process ◽  
Drawing Machine ◽  
High Carbon ◽  
Wire Temperature ◽  
Drawing Speed

High speed wet wire drawing has become very common for the production of fine high-carbon steel wire (up to 0.70wt%C) because of the increase in customer demand and production rates in real industrial fields. Although the wet wire drawing process is performed at a high speed usually above 1000m/min, greater speed is required to improve productivity. However, in the high-carbon steel wire drawing process, the wire temperature rises greatly as the drawing speed increases. The excessive temperature rise makes the wire more brittle and finally leads to wire breakage. Therefore, the control of wire temperature is very important. In this study, the variations in wire temperature during the high speed wet wire drawing process were investigated. A multi-stage wet wire drawing process with 21 passes, which is used to produce steel wire, was redesigned by considering the increase in temperature. In order to apply the redesigned pass, a new wet wire drawing machine was developed. Through a wet wire drawing experiment with the new drawing machine and the redesigned pass, it was possible to increase the maximum final drawing speed to 2000m/min without the deterioration of the qualities of drawn wire.

Effect of Drawing Processes on Wire Breaking in Steel Wire Production

2014 ◽  
Vol 941-944 ◽  
pp. 1667-1670
Author(s):  
Ying Lei Xu
Keyword(s):  
Compression Ratio ◽  
Steel Wire ◽  
Wire Drawing ◽  
Drawing Process ◽  
Drawing Speed ◽  
Bending Stresses ◽  
The Wire ◽  
The Right ◽  
The Impact ◽  
Main Factor

Wire breaking is a major factor in the impact of wire drawing production, and drawing process is an important factor causing the wire breaking, which cannot be ignored. In this paper, the impact of tension, bending stresses, centrifugal stresses, compression ratio of die arrangement and drawing speed in the process of the wire drawing process on wire breaking were calculated theoretically. Then the corresponding measurements to reduce the rate of wire breaking were proposed. The results show that the the tension of drawing process was the main factor, while choosing the right compression ratio and drawing speed according to the actual situation, the rate of wire breaking could be reduced effectively.

Sign in / Sign up

Export Citation Format

Share Document