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.

scholarly journals The Influence of the Drawing Process on the Mechanical Properties of TRIP Steel Wires with 0.4% C Content

Materials ◽  
2020 ◽  
Vol 13 (24) ◽  
pp. 5769
Author(s):  
Monika Kucharska ◽  
Sylwia Wiewiórowska ◽  
Jacek Michalczyk ◽  
Andrzej Gontarz
Keyword(s):  
Mechanical Properties ◽  
Retained Austenite ◽  
Process Analysis ◽  
Steel Wire ◽  
Experimental Tests ◽  
Wire Drawing ◽  
Drawing Process ◽  
The Finite Element Method ◽  
Steel Wires ◽  
Drawing Speed

In the work, the results of the research concerned with the TRIP (Transformation Induced Plasticity) steel wire drawing process in experimental and theoretical ways are shown. The wire drawing process tests on the experimental way were conducted in both laboratories as well as industrial conditions, with the use of two drawing speeds (1.6 and 6 m/s) and two drawing schemes (low and high single reductions). The mechanical properties of wires drawn with high drawing speed equal to 6 m/s showed higher values of mechanical properties for wires drawn with low single reductions than for wires drawn with high single reductions. Such a phenomenon contradicts the theory of drawing wires from steel with a ferritic-pearlitic structure and must be related to TRIP structure and the presence of retained austenite in it, which is transformed into martensite during the deformation process. In order to explain this phenomenon, the theoretical wire drawing process analysis was conducted with the use of the Drawing 2D program based on the finite element method. On the base of the simulation, a large increase in temperature was found on the surface for wires drawn with high drawing speed and low single reductions, which can cause the blocking of transformation retained austenite into martensite and thus a decrease in Rm. To confirm this thesis, further studies will include tests of the amount of retained austenite in wires obtained during experimental tests.

Analysis of the Influence of Drawing Speed on the Amount of Retained Austenite in TRIP Steel Wires

2013 ◽  
Vol 199 ◽  
pp. 379-383 ◽  
Author(s):  
Sylwia Wiewiórowska ◽  
Zbigniew Muskalski
Keyword(s):  
Trip Steel ◽  
Retained Austenite ◽  
Wire Drawing ◽  
Austenitic Steels ◽  
Structure Evolution ◽  
Drawing Process ◽  
Strain Intensity ◽  
Steel Wires ◽  
Drawing Speed ◽  
Plastic Deformation Process

The specific properties of TRIP steel can be obtained by the occurring the effect of additional plasticity during transformation of metastable retained austenite into martensite caused by plastic deformation process. Research carried out for highly alloyed austenitic steels with TRIP effect proved the influence of strain intensity, chemical composition and deformation temperature on efficiency marteniste transformation. In the work research concerned with the influence change of drawing speed on retained austenite amount in drawn wires structure was shown. In available literature there are no publications concerned with the influence of wire drawing process parameters on the structure evolution the medium carbon TRIP steel wires. Research shown in the work was realized with the assumption that the strain intensity is determined by scheme of single and total reductions, and the value of strain rate is a result of used in wire drawing process drawing speed.

The High Speed Wire Drawing Process of Steel Wires under Fluid Frictions Conditions

2016 ◽  
Vol 716 ◽  
pp. 76-84
Author(s):  
Maciej Suliga
Keyword(s):  
High Speed ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Drawing Process ◽  
The Finite Element Method ◽  
Wire Surface ◽  
Steel Wires ◽  
Drawing Speed ◽  
The Wire ◽  
Multiparameter Analysis

The essential purpose of the work was to determine the phenomena that occur in multipass wire drawing process of high carbon steel wires with high speed in hydrodynamic dies and to assess their influence on moulding the wire properties after the drawing process. The multiparameter analysis of the issues has involved the theoretical dissection of the phenomena arising in high speed wire drawing process in hydrodynamic dies with the usage of the finite element method supported by the experimental multipass drawing process in industrial conditions. On the basis of numerical analysis the influence of drawing speed on wire temperature was estimated. For final wires the investigation of mechanical properties, topogrhaphy of wire surface, the amount of lubricant on the wire surface, the pressure of lubricant in hydrodynamic dies were determined.

scholarly journals The Analysis of “Hot” Drawing Process of Trip Steel Wires at Different Initial Temperatures

2016 ◽  
Vol 61 (4) ◽  
pp. 1991-1994
Author(s):  
S. Wiewiórowska ◽  
Z. Muskalski ◽  
M. Siemiński
Keyword(s):  
Trip Steel ◽  
Retained Austenite ◽  
Drawing Process ◽  
Steel Wires ◽  
Hot Drawing ◽  
Preliminary Research

Abstract In the work the results of preliminary research of the „hot” drawing process of TRIP steel wires at different initial temperatures has been shown. The study is expected to find whether the „hot” drawing process, and so the increase in the temperature of the material being drawn, will block the transformation of retained austenite into martensite and, as a consequence, influence the properties of drawn wire.

scholarly journals The Analysis of the High Speed Wire Drawing Process of High Carbon Steel Wires Under Hydrodynamic Lubrication Conditions

2015 ◽  
Vol 60 (1) ◽  
pp. 403-408 ◽  
Author(s):  
M. Suliga
Keyword(s):  
High Speed ◽  
Hydrodynamic Lubrication ◽  
High Carbon Steel ◽  
Wire Drawing ◽  
Drawing Process ◽  
Wire Surface ◽  
Compressive Stresses ◽  
Steel Wires ◽  
Drawing Speed ◽  
The Wire

Abstract In this work the analysis of the wire drawing process in hydrodynamic dies has been done. The drawing process of φ5.5 mm wire rod to the final wire of φ1.7 mm was conducted in 12 passes, in drawing speed range of 5-25 m/s. For final wires of φ1.7 mm the investigation of topography of wire surface, the amount of lubricant on the wire surface and the pressure of lubricant in hydrodynamic dies were determined. Additionally, in the work selected mechanical properties of the wires have been estimated. It has been shown that in the drawing process under hydrodynamic lubrication by drawing speed of 25 m/s the phenomena of uncontrolled formation of the surface and the diameter of the wire appears, and in the process the compressive stresses eliminating cracks on the wire surface occur, causing further smoothing. The wires drawn hydrodynamically in speed of 25 m/s, besides clearly worse properties compared to the wires drawn hydrodynamically at speeds in the range of 5 to 20 m/s, also exhibit large dimensional variations.

Stress Analysis and Life Estimation of Drawing Die with Bi-Materials

2010 ◽  
Vol 156-157 ◽  
pp. 1415-1420
Author(s):  
Zhong Zheng ◽  
Hai Ou Zhang ◽  
Gui Lan Wang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stress Fields ◽  
Drawing Process ◽  
Stress Distributions ◽  
Life Estimation ◽  
Drawing Die ◽  
Die Material ◽  
The Cost ◽  
Realistic Significance

In this article, a drawing die is researched in order to obtain the dynamic load and stress distributions and determine the potential fatigue location in it. The stress fields of the drawing die in the drawing process and their changing rules were studied through finite element method. The dynamic simulation of stress changing state has been realized, and the potential fatigue locations in the die were also determined. Based on the conclusion, the cavity die was divided into the substrate part and the wear-resistant part according to the stress distribution. Fatigue life estimations were made on the homogeneous die and the die with bi-materials. The example showed that bi-materials design can increase the service life while greatly reduces the cost of die material. The conclusions drawn conform to reality and have realistic significance.

The improvement in deep drawing process for producing air filter by using finite element method

2013 ◽  
Vol 40 (1) ◽  
pp. 125-130
Author(s):  
Trinet Yingsamphancharoen ◽  
Nakarin Srisuwan ◽  
Chira Densangarun
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Deep Drawing ◽  
Drawing Process ◽  
Air Filter ◽  
Deep Drawing Process ◽  
Element Method
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