INFLUENCE OF SIDE WORK OF FLANGES ON CHANGE OF THEIR HEIGHT IN ROUGHING CLOSED GIRDER PASSES

Authors

  • Виктор Степанович Медведев National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv, Ukraine
  • Елена Владимировна Базарова Donbass state technical university, Alchevsk, Ukraine

DOI:

https://doi.org/10.20535/2305-9001.2016.76.50885

Keywords:

beam pass, mathematical model, deformation of metal, side reduction of flanges, increase of the flanges

Abstract

The results of mathematical modeling of metal flow in rough dead beam pass using finite elements method are given. Distribution of stresses, displacements and deformations in the transversal and longitudinal sections of the pass is shown. Integral parameters of the distortion particularly an increase of the height in open and dead flanges as well as pulling down the height of the flanges depending on side reduction of the pass flanges are determined. It is found out that with increase of flange side reduction the height increase of open and dead flanges is reduced. For I-beams production with high accuracy with stable dimensions over the width of the flanges the rough dead beam passes must be designed with minimum side reduction of flanges whereby the first passes can provide high flanges and ensure reliable height deformation in fine control passes. It is recommended these calibers to be designed considering the average strain index over thickness of open and dead flanges not more than 1.3.

Author Biographies

Виктор Степанович Медведев, National Technical University of Ukraine «Kyiv Polytechnic Institute», Kyiv

д/т.н.

Елена Владимировна Базарова, Donbass state technical university, Alchevsk

ст. препод., ДонГТУ

References

Lihanskij, V.S. and Grinavcev, V.N. (1986), Tehnologija proizvodstva fasonnyh profilej s primeneniem kasset, «Metallurgija», Moscow, Russian.

Medvedev, V.S., Chichkan, A.A., Shpakov, V.A., and Bazarova E.V. (2014), Tochnost' prokatki dvutavrovyh balok v kletjah duo s ispol'zovaniem kasset s neprivodnymi vertikal'nimi valkami, Metallurgicheskaja i gornorudnaja promyshlennost', no 3, pp 45–49.

Medvedev, V.S., Borovik, P.V., Shpakov, V.A., and Bazarova, E.V. (2014), Medvedev, V.S. Teoreticheskoe issledovanie techenija metalla v zakrytyh balochnyh kalibrah metodom konechnyh jelementov, Obrabotka materialov davleniem, sb. nauch. tr, Donbasskoj gosudarstvennoj mashinostroitel'noj akademii, DGMA, no 1 (38), pp. 166–172, Kramatorsk, Russian.

Medvedev, V.S. Bazarova, E.V. and Shpakov, V.A. (2014), Vlijanie obzhatija stenki na izmenenie vysoty flancev v chernovyh zakrytyh balochnyh kalibrah jelementov, Vіsnik Nacіonal'nogo tehnіchnogo unіversitetu «HPІ», Zb. nauk. pr. Serіja, Іnformacіjnі tehnologії ta obladnannja obrobki materіalіv u mashinobuduvannі ta metalurgії, NTU «HPІ»,. no 43 (1086), pp. 81–88, Harkіv, Ukraine.

Medvedev, V.S., Bazarova, E.V. and Shpakov, V.A. (2015), Vlijanie shiriny stenki na izmenenie vysoty flancev v chernovyh zakrytyh balochnyh kalibrah jelementov, Obrabotka materialov davleniem, sb. nauch. tr. Donbasskoj gosudarstvennoj mashinostroitel'noj akademii, DGMA, no 1 (40), pp. 175–181. Kramatorsk, Russian.

Borovik, P.V. (2012), Teoretichnі doslіdzhennja procesіv obrobki metalіv tiskom na osnovі metodu skіnchenih elementіv, Navch. posib., DonDTU, Alchevs'k, Ukraine.

Medvedev, V.S., Shpakov, V.A., and Bazarova, E.V. (2013), Jeksperimental'noe issledovanie techenija metalla v balochnyh kalibrah, Resursozberіgajuchі tehnologії virobnictva ta obrobki tiskom materіalіv u mashinobuduvannі, zb. nauk. prac', vid-vo SNU іm. V. Dalja, no 1 (14), pp. 52–61, Lugans'k, Ukraine.

Makaev, S.V., Vinokurov, I.Ja., and Merekin, B.V. i dr. (1962), Proizvodstvo oblegchennyh profilej, Metallurgizdat, Sverdlovsk, Russian.

Zhadan, V.T., Fejgin, G.D., and German, I.M. (1972), Proizvodstvo dvutavrovyh balok, Metallurgija, Moscow, Russian.

Published

2016-07-01

Issue

Section

Original study