A study of the impact of technological parameters on deformation speed at high speed wire drawing in monolith wires

In modern wire production, production currently uses straight-line wire drawing machines, where the drawing speed reaches 45 m/s. This work studied the influence of the technological parameters of the drawing process, namely the drawing speed, the angle of the monolithic wire drawing, the drawing coefficient, the impact of the diameter of the wire on the deformation rate. The methods used for the analysis were numerical experiment (computer modelling) and computational method (mathematical modelling). Computer simulation of the drawing process was carried out on wire d = 3 mm made of steel grade 10. In the process of wire drawing, given a variation in technological parameters, the spread of values of the deformation rate is from 20 to 12000 s-1. The results of the studies showed that the maximum speed of deformation during monolithic wire drawing can be twice the average speed of deformation. The drawing angle has a significant influence on the uniform distribution of deformation speeds along the wire cross-section. Increasing the value of the half-angle α of the wire drawing from 3 to 8° leads to a 2.5x increase in the rate of deformation. The localization of high deformation rates at the large half-angles of the wires is concentrated in the central part of the wire. Increasing the drawing speed from 5 to 45 m/s leads to a 10-fold increase in the deformation speed. The results of determining the average deformation rate using the methods of calculation and computer simulation in the QForm program showed a high level of convergence. This suggests the possibility and feasibility of using the calculation method to assess the influence of technological parameters on the deformation rate during wire drawing.