نوع مقاله : مقاله پژوهشی
عنوان مقاله English
نویسندگان English
Perforated tubes are hollow cylinders characterized by a pattern of uniform holes created in their tubular structure. The properties of perforated tubes enable their use in a wide range of applications, including filtration systems, architectural elements, chemical and process engineering, aerospace and automotive, agricultural applications, and more. In this study, the laser bending process of Perorated tubes is investigated through numerical simulation. The commercial finite element software Abaqus is used for the numerical simulations. To this end, the effects of the most important input parameters of the process, including laser output power, laser scanning speed and the number of holes located along the irradiation path, on the vertical and lateral displacements of the free edge of the laser-bent tube are investigated. The vertical displacement of the tube's free edge represents the main bending of the tube, while the lateral displacement of the free edge is an undesirable phenomenon and effect that leads to a reduction in the dimensional accuracy of the laser-bent tubes. The results show that by increasing the laser power, the vertical and lateral displacements of the free edge of the laser-bent tube increase. On the other hand, increasing the laser scan speed leads to a decrease in the vertical and lateral displacements of the free edge. Moreover, with an increase in the number of holes located along the irradiation path, the vertical displacement of the free edge of the tube decreases, while the lateral displacement increases.
کلیدواژهها English
