КОМП’ЮТЕРНЕ МОДЕЛЮВАННЯ НЕРІВНОМІРНОСТІ ДЕФОРМАЦІЇ ПРИ ВОЛОЧІННІ ДРОТУ

Abstract

Low-carbon steel wire traditionally takes a large part in the production of wire products. The quality of the finished wire, and specifically the level of mechanical properties, is affected by non-uniform strain during the drawing process. The uniformity of strain depends on the configuration of the drawing die, specifically the length of the die bell and the length of the die bearing. In industry, the die bearing is bored to the required diameter size in worn out dies during previous drawing. Considering the constancy of the die length, this leads to a change in the ratio between the lengths of the die bell and die bearing and to a change in the level of non-uniform strain. The influence of the die geometric parameters on the wire mechanical properties is often determined using the results of experimental investigations, which leads to significant costs of material and energy. FEM simulation makes it possible to reduce the number of experiments and predict the quality of finished products.