Numerical Modelling of Ploughshares Rolling Process from Scrapped Railway Rail

2013 ◽  
Vol 199 ◽  
pp. 472-477
Author(s):  
Piotr Szota ◽  
Sebastian Mróz ◽  
Andrzej Stefanik ◽  
Henryk Dyja
Keyword(s):  
Numerical Modelling ◽  
Rolling Process ◽  
Roll Pass Design ◽  
Rolling Schedule ◽  
Pass Design ◽  
Roll Pass ◽  
Varying Thickness ◽  
Railway Rail ◽  
Open Shape ◽  
Unusual Shape

In this work, a rolling schedule has been developed, which allows the scrapped S60 railway rail to be used for further processing into semi-finished or finished products. The main purpose of the investigations was to develop the shape and dimensions the rolling grooves and to select the strains in various passes in the ploughshare rolling process. The main problem during roll pass design was the ploughshare shape which is asymmetric and has a varying thickness along the width. The developed roll pass design consist of five passes: one open shape pass, one edging pass and three closed shape passes. The first open shape pass is characterized by an unusual shape which tends to reduce the band asymmetricality in the horizontal axis in such a manner as to prevent the formation of lapping in the sharp corner areas resulting from cutting. Based on the numerical modelling it has been found that the developed roll pass design allows the production of a ploughshare of dimensions conforming to the dimensional assumptions. For the numerical modelling of the rolling process, the Forge2008® computer program was employed.

scholarly journals Increasing the Durability of Separating Rolls During Rolling Ribbed Bars in the Three-Strand Technology

2017 ◽  
Vol 62 (3) ◽  
pp. 1535-1540 ◽  
Author(s):  
D. Strycharska ◽  
P. Szota ◽  
S. Mróz
Keyword(s):  
Numerical Modelling ◽  
Experimental Tests ◽  
Rolling Process ◽  
Production Volume ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Band Shape ◽  
Groove Surface ◽  
Pass System

Abstract The paper presents the results of investigations aimed at enhancing the durability of slitting passes in the process of three-strand rolling of 16 mm-diameter ribbed bars. Using the Forge2011® computer program, numerical modelling of the rolling process was carried out in order to examine the variations in band shape in individual rolling passes, to verify the correctness of the designed new slitting pass system, to determine the local strains in the rolled band, and then to determine the distribution of unit friction force work on the roll groove surface. From the obtained investigation results it was found that the application of the new roll pass design in stands 13-16 increased their durability in the rolling process by approx. 30%. The wear of the roll sets for the stands under examination after rolling out the annual 16 mm-diameter bar production volume was determined in the study. The obtained numerical modelling results were verified in experimental tests.

Improvement of the roll-pass design and rolling process on the 250 mill

Metallurgist ◽  
1973 ◽  
Vol 17 (5) ◽  
pp. 357-360
Author(s):  
V. Ya. Kozlov ◽  
N. G. Kiva ◽  
A. M. Litvak ◽  
I. A. Sychev ◽  
V. M. Belenko
Keyword(s):  
Rolling Process ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass

New Roll Pass Design to the Bar Rolling Process Using Longitudinal Slitting Passes

2010 ◽  
Vol 165 ◽  
pp. 310-315 ◽  
Author(s):  
Sebastian Mróz
Keyword(s):  
Numerical Modeling ◽  
Rolling Process ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Bar Rolling ◽  
Longitudinal Band ◽  
Groove Rolling ◽  
Reduce Energy Consumption ◽  
Rolling Technology

: groove-rolling, energy-force parameters, numerical modeling, FEM Abstract. The paper presents the developed new roll pass design and a new method of rolling in slitting passes of bar with longitudinal band, which reduce energy consumption and increase durability of slitting passes compared to the methods used previously. The results of theoretical analysis were verified based on the measurements of rolling power taken during bar rolling according to the multi-strand rolling technology. Forge2007 software was employed in the numerical analysis of the process of rolling with band slitting.

scholarly journals THE CONCEPT OF OPTIMAL BAR ROLL PASS DESIGN. REPORT 3. SPACE OF ROLL PASS DESIGN SCHEMES

2019 ◽  
Vol 62 (1) ◽  
pp. 15-24
Author(s):  
A. M. Mikhailenko ◽  
D. L. Shvarts
Keyword(s):  
Rolling Mill ◽  
Industrial Development ◽  
Central Element ◽  
Theoretical Data ◽  
Rolling Process ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Bar Rolling ◽  
Information Block

Based on the system approach and on the experience accumulated at theoretical data, design and industrial development of bar rolling, the Chair “Metal Forming” of Ural Federal University develops the universal “Concept of optimum calibration”. The general ideology of roll pass design optimization is stated in article “The concept of optimal bar roll pass design. Report 1. Basic statements”. In the article “The concept of optimal bar roll pass design. Report 2. Calibers space” the structure, appointment and maintenance of the information block reflecting so-called “calibers space” are considered. According to the general concept of optimization, the following task that needs to be solved is the problem of creation of information block so-called “space of schemes of roll pass design” which will be used further as the first space of optimization. The concept “space of schemes of roll pass design of a bar-rolling mill” is considered as the space containing all possible virtual schemes of rolling of a concrete profile on the concrete rolling mill. For formation of the space of schemes of rail calibrations it is necessary to generate separate virtual schemes and to consistently fill this space with them. Thus, the space of calibrations schemes is formed of separate unique calibrations schemes. For formation of this space from separate calibers, it is offered to use the specialized algorithms which are “generators of schemes of roll pass design”. As an example, the structure of the generator prepared for creation of such space for rolling of railway rails is considered. It is revealed that all known rail calibrations can be presented in the form of essentially the same block structure which is used as the central element of the schemes generator of rail calibrations. Usage of described and similar generators in relation to rolling process of a concrete profile on the concrete rolling mill allows obtaining spaces of acceptable schemes of calibrations. Such spaces are necessary for the subsequent optimizing procedures for search of the best calibration scheme from all possible calibrations. The considered approach for creation of calibrations schemes space can be used during creation of computer-aided engineering systems and optimization of calibrations of rolling rolls.

Characteristics of the roll pass design for cold bending of No. 40 channels

Metallurgist ◽  
1974 ◽  
Vol 18 (8) ◽  
pp. 614-616
Author(s):  
V. A. Monid ◽  
V. S. Podyminogin ◽  
P. P. Zhemaitis ◽  
G. G. Kornilov
Keyword(s):  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Cold Bending

An efficient roll pass design for angle iron

Metallurgist ◽  
1974 ◽  
Vol 18 (8) ◽  
pp. 611-613 ◽  
Author(s):  
G. S. Utkin ◽  
V. I. Krainov ◽  
P. V. Vorob'ev
Keyword(s):  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass ◽  
Angle Iron ◽  
Efficient Roll

Development of a rational roll pass design for a rolling mill using performance criteria

2013 ◽  
Vol 2013 (1) ◽  
pp. 43-47 ◽  
Author(s):  
A. I. Vinogradov ◽  
M. A. Timofeeva ◽  
S. O. Korol’ ◽  
A. I. Traino
Keyword(s):  
Rolling Mill ◽  
Performance Criteria ◽  
Roll Pass Design ◽  
Pass Design ◽  
Roll Pass

Research on Welded Pipe and Tube Pass Design Virtual Methods

2013 ◽  
Vol 690-693 ◽  
pp. 2643-2646
Author(s):  
Guo Chang Li
Keyword(s):  
Computer Aided Design ◽  
Design Method ◽  
Design System ◽  
Roll Pass Design ◽  
Pass Design ◽  
Virtual Design ◽  
Roll Pass ◽  
Welded Pipe ◽  
Aided Design ◽  
Pipe Manufacture

Welded pipe and special pipe get more and more applications; however, the difficulty of pass design method limits welded pipe manufacture. The paper discusses welded pipe roll pass design method based on CATIA, and roll CAD/CAPP computer aided design system based on AutoCAD, and gives roll virtual design methods which use roll CATIA, CAD/CAPP system.

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