Dependence of the Radial Stresses Created in a Semifinished Product During Helical Rolling on the Rolling Scheme and the Tension Conditions

Metallurgist ◽  
2004 ◽  
Vol 48 (1/2) ◽  
pp. 70-79
Author(s):  
E. I. Panov
Keyword(s):  
Semifinished Product ◽  
Helical Rolling ◽  
Rolling Scheme

Dependence of surface quality of semifinished product on rolling scheme

Metallurgist ◽  
1975 ◽  
Vol 19 (7) ◽  
pp. 514-515
Author(s):  
V. N. Ershov ◽  
V. G. Simonenko ◽  
A. V. Baiduzh ◽  
M. M. Gelerman ◽  
E. A. Mil'man
Keyword(s):  
Semifinished Product ◽  
Surface Quality ◽  
Rolling Scheme

Production of electric steel using a semifinished product

Metallurgist ◽  
1965 ◽  
Vol 9 (3) ◽  
pp. 139-141
Author(s):  
V. S. Galyan ◽  
M. A. Yartsev ◽  
R. M. Khairutdinov ◽  
E. S. Golikov ◽  
S. T. Ushakov ◽  
...  
Keyword(s):  
Semifinished Product ◽  
Electric Steel

scholarly journals The Effect of Process Parameters in Helical Rolling of Balls on the Quality of Products and the Forming Process

Materials ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2125 ◽  
Author(s):  
Janusz Tomczak ◽  
Zbigniew Pater ◽  
Tomasz Bulzak
Keyword(s):  
Metal Flow ◽  
Experimental Tests ◽  
Rolling Process ◽  
Helical Rolling ◽  
Forming Process ◽  
University Of Technology ◽  
Quality Of Products ◽  
Skew Rolling

This paper presents selected numerical and experimental results of a skew rolling process for producing balls using helical tools. The study investigates the effect of the billet’s initial temperature on the quality of produced balls and the rolling process itself. In addition, the effect of billet diameter on the quality of produced balls is investigated. Experimental tests were performed using a helical rolling mill available at the Lublin University of Technology. The experiments consisted of rolling 40 mm diameter balls with the use of two helical tools. To determine optimal rolling parameters ensuring the highest quality of produced balls, numerical modelling was performed using the finite element method in the Forge software. The numerical analysis involved the determination of metal flow kinematics, temperature and damage criterion distributions, as well as the measurement of variations in the force parameters. The results demonstrate that the highest quality balls are produced from billet preheated to approximately 1000 °C.

Metal flow during piercing on a helical rolling mill

Metallurgist ◽  
2004 ◽  
Vol 48 (9-10) ◽  
pp. 460-466 ◽  
Author(s):  
A. N. Nikulin
Keyword(s):  
Rolling Mill ◽  
Metal Flow ◽  
Helical Rolling

scholarly journals Physical Modelling of the Ball-Rolling Processes

Metals ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 35 ◽  
Author(s):  
Zbigniew Pater ◽  
Janusz Tomczak ◽  
Łukasz Wójcik ◽  
Tomasz Bulzak
Keyword(s):  
Acrylonitrile Butadiene Styrene ◽  
Physical Modelling ◽  
Model Material ◽  
Helical Rolling ◽  
Rolling Mills ◽  
Cross Rolling ◽  
Plastic Forming ◽  
3D Printed ◽  
Manufacturing Accuracy ◽  
Steel Balls

The objective of the article was to present the state of the problem of physical modelling of the hot-working processes with plasticine as the model material. It was stated that the aforementioned method can prove helpful in analyzing complex plastic forming processes such as cross rolling and helical rolling of balls. In order to confirm this hypothesis, an attempt at forming steel balls with diameters of 40 mm (cross rolling) and 57 mm (helical rolling) under laboratory conditions was made. Further on, these processes were conducted in model form using special model rolling mills and 3D printed acrylonitrile butadiene styrene (ABS) tools. The comparison of the test results regarding shape and manufacturing accuracy, as well as force parameters, confirmed the validity of using physical modelling in the investigation of the process of cross rolling and helical rolling of balls.

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