Scientific journal
Scientific Review. Technical science
ISSN 2500-0799
ПИ №ФС77-57440

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SPRINGING AND GEOMETRICS ESTIMATION METHODOLOGY AT THE PRELIMINARY FORMATION OF A TUBULAR BILLET OF THE LARGE DIAMETER TUBES ON PRESS

Boklag N.U. 1 Chechulin U.B. 1 Pesin U.V. 1 Kugaevskiy S.S. 1
1 Ural Federal University named after the first President of Russia B.N.Yeltsin
Mathematical simulation of springing at large diameter tubes tubular billets production by UOE method has been carried out. It is presented, that a springing chord size defines ability of part placing and positioning in the process tool of final forming press. Relations for springing chord calculation for one radius and two radius punch are obtained. А software package for multivariant shaped billet springing calculation in a dialog mode is developed. An example of typical part springing calculation for physical model with using of this software package is shown. A part configuration after forming by two methods is determined. It is ascertained, that a measurement inaccuracy at the raster images is not more than two percent in comparison with measurements received by the instrumentality of the coordinate measuring machine. A complex inspection at the physical model by means of a wide range variation of workpiece basic parameters showed a good (not more than five percent) convergence of values received by calculation with measurement data.