Current level of development and improvement of the design process for tool calibrations of CRP mills

Abstract

The article presents the results of review analysis of publications of Russian and foreign authors (representatives of both new and established research teams), considering the directions of improvement of existing processes of cold rolling of pipes (CRP). It is shown that for the last decades a major part of studies is devoted to solving different design problems, including the improvement of power elements of electric drive and drive mechanisms, improving of electromechanical system of feeding and turning mechanisms, development of delivery tables structural design, tooth rack, etc. Less attention is paid to finite-element modeling of cold rolling process at tube mills. Separately, the issue of designing of technological tool calibrations of CRP mills has been analyzed. Currently main scientific and technical activities aimed at improving the software and methodological apparatus for designing gauges are focused on specifying individual parameters of already developed earlier classic design procedures and their implementation in various proprietary software products. Examples of modern calculation algorithms, design schemes and main characteristics (advantages and disadvantages, influence on quality indexes of pipes) of current stage of rolling mills technological tools calibrating are given. The functional and technical features of the software products used for this purpose are analyses and the current requirements for modern software are given. Based on the analysis, it is shown that maximum concentration of previously achieved results and their synergy with modern world research trends in calculation methods development of tool profiling in CRP mill is a timely and strategically important task for the domestic pipe industry.