نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
In this article, several different flower patterns are designed for the folded section that is called the 507, with the “Forward-Backward” method. This method is an automatic method for designing the primary flower pattern. In this method, it is assumed that if the number of stands and the flower pattern are suitable, the initial pipe section can be reached by reverse shaping. In the design of flower pattern of complex sections with this method, how to position the center of the initial pipe relative to the final product is very important. In order to investigate the effect of the position of the pipe, the reshaping of the 507 section has been evaluated with three different positioning methods. The reduction of energy consumption and uniformity of wear of rollers have been used as two criteria to identify the most suitable flower pattern. The controllable factor in the uniform wear of the rollers is the adjustment of the vertical force on the rollers by improving the design of the flower pattern. For this purpose, numerical simulation has been used along with experimental testing. The dimensional characteristics of the formed pipe have been evaluated. The results show that choosing the right position for the center of the pipe affects the dimensional quality of the output section. This is effective in reducing the energy consumption by about 1%, improving the dimensions by about 55% and the uniformity of vertical force distribution by about 14% compared to the common method of flower pattern design.
کلیدواژهها English