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The results of numerical experiments on studying of influence of technological errors on the vertical and horizontal forces of rolling are given. A  full  factorial  computational  experiment was performed by varying factors: initial wall thickness variation of pipes, feed and friction factor. The regression equations were obtained by the vertical and horizontal forces from these factors. It was found that the force values obtained when the maximum values of the factors are much higher  than the values obtained at minimum values of factors:  the vertical force varies by more  than 2  times, and the axial force – more than 8 times. It was concluded that the errors of setup rolling parameters can cause a multiple increase in the forces of  rolling, especially,  in  the horizontal component. Therefore,  for stable  rolling mills  operation  the observance of  procedures discipline  and  control  the  initial wall  thickness  variation  of  pipes  are necessary.

EFFECT OF TECHNOLOGICAL ERRORS ON FORCE PARAMETERS OF PIPES COLD ROLLING