Determining of essential parameter on S.S 410 during cold drawing tube process

The parameters affecting the drawing process of 410 stainless steel tube were determined such as die angle, friction coefficient and drawing force. Microstructural changes using optical microscopy included elongated grains and distribution of chromium carbide precipitates in the matrix. Using uniaxial tensile testing and the Johnson-Cook equation, parameters related to material deformation were obtained. Evaluation of XRD patterns after drawing showed the formation of preferential orientations from {110} to {200}. The highest texture coefficient was related to the {200}. In addition, ring tests showed that the best lubricants for drawing were oxalate and soap, which provided lowest friction. Also, based on the simulation results, the optimal half-die angles of drawing were attained as 16°, which resulted in the lowest drawing force.