Titanium Bar And Wire Rod Rolling Pass System

Titanium alloy has many advantages such as high specific strength, excellent anti-corrosion and stable high and low temperature performance, so it's widely used in many domains, for example, aerospace, shipbuilding, automobile, medical, and so on. Ti-alloy's plasticity and thermal conductivity is poor, the deformation resistance and friction coefficient is high, so products rolled by the general 2-roll rolling with poor quality and low yield can't satisfy the requirement of consumers.3-roll Y-type mill is one new type of rolling mill, which can achieve the goal of high speed, no twisting and micro tension rolling. The surface quality of product rolled by the 3-roll Y-type mill is perfect, the efficiency is high and comprehensive performance is well. So 3-roll Y-type mill is very suitable for rolling metal which is hard to make deformation, including Ti-alloy.Groove design is not only the head procedure to design the rolling unit system of the 3-roll Y-type mill, but also the basement of the whole rolling line. Normally, groove design including its parameter calculation almostly depends on artifical calculation, which efficiency is very slowly. All parameters would be recounted if one preference selection is inappropriate. In order to ease the groove design and parameter calculation, detailed analysis was carried out applied on groove design of one 3-roll Y-type tandem rolling line, and corresponding parameter calculation interface was developed with the VB application.The continuous rolling process for Y-type rolling mill was simulated with the application of MSC.Marc, incorporated with the large deflection thermal- mechanical-coupled elasto-plastic method, for the same time, the deformation of rolled pieces,pressure on the rollers,rolling torque of the Y-roller rolling mill in the process are analyzed. The change rule of tension on the loop device in pace with the change of rolling speed was also simulated and analyzed. Compared the simulation results with the experimental value, rationality and practicability of the designed groove system were verified.