Computational analysis of the process for manufacturing seamless tubes

Hot Tube-Forming

“…The cross-rolls compress, rotate, and pull the billet simultaneously. The shape of the rolls causes the compression, and the inclination angle between the axes of rotation of the rolls causes the pulling (12)(13)(14). The particular geometry of the rolls and their inclination induces the so-called Mannesmann effect, which provokes a fracture along the longitudinal axis of the billet due to the stress-strain state arising at the billet center.…”

“…Up to now, great efforts have been conducted to provide insights into the skew-roll piercing process via experimental, analytical, and numerical methods (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22)(23). Pater et al (11) presented a 3D thermomechanical modeling and simulation of the whole piercing process of thick-walled tubes in two rolls skew rolling mill.…”

“…Both the damage model and the temperature changes in the plug during the piercing process were not considered in the modeling. By considering the transient conjugate heat transfer occurring between the piercing element, its water-cooling system, and the hot billet, Reggio et al (12) developed a computational method for the transient 3D heat transfer process occurring during the piercing rolling process. They found optimization of the cooling water channel geometry ensures adequate heat transfer from the perforator point to the cooling water undoubtedly contributes to extending the perforator point's useful life.…”

Aspects of tube and pipe manufacturing processes: Meter to nanometer diameter

“…The current applications of the FEA in piercing, drawing, extrusion, bending, roll forming, welding and hydroforming are very common [22][23][24][25][26][27]. There is no doubt that industry cannot survive without the computer-based simulation and optimization of some of the key manufacturing processes with which it is working.…”

Mathematical modeling of tube cooling in a continuous bed

“…Deng and Kiyoshima [2] and Yaghi et al [3] presented numerical simulations of distributed residual tension in welded tubes. Reggio et al [4] developed a computational analysis relating to the three-dimensional heat exchange process during seamless tube manufacturing employing computational fluid dynamics software based on the finite volume methodology. Park et al [5] studied an indirect hot-stamping process consisting of forming at room temperature, heating, and water quenching in a tube.…”