نوع مقاله : مقاله پژوهشی
1 دانشکده مهندسی مکانیک - دانشگاه تربیت مدرس
2 دانشکده ی مهندسی مکانیک، دانشگاه صنعتی مالک اشتر
عنوان مقاله [English]
Generally, in pipe manufacturing industries, roll design, in the cold roll forming process, is performed, based upon experiments
and the qualitative choice of the designer. In this paper, a computer program is provided to reduce the number of qualitative decisions. In this research, rolls are designed, based on the Kiuchi method, using a sine shape function. Elasto-plastic analysis is done for determining the 3D shape of strips, strain, stress distribution and the consumed roll power between roll stands. Then, by equalizing the power for all roll stands, the rolls are designed. Finally, considering the technological parameters of the process and the dimensions of the machines, a SCRIPT file for manufacturing the rolls is prepared for the user. Using the results of the point test, based on CAD/CAM principals, it is shown that the results of the provided computer program, for the 3D shape of the strips, are consistent with experimenta data.