Laser-assisted thermomechanical bending of tube profiles
نویسندگان
چکیده
منابع مشابه
Effect of Cooling on Bending Angle and Microstructure in Laser Tube Bending with Circumferential Scanning
Laser tube bending is a flexible forming process. Two irradiation methods of axial and circumferential scanning are generally used to form metal tubes. The two most important disadvantages of circumferential scanning are its lower bending angle and the time interval required between each scan for cooling purpose. In this research, a novel cooling strategy during laser tube bending with circumfe...
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Mechanisms of the process are examined to better understand the deformation characteristics such as slightly protruded shape at the intrados, wall thickness variation, cross-section ovalization, bending radius, and asymmetry. A finite element model is developed and validated by experimental observations. Factors important to characteristics of deformation are experimentally and numerically inve...
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Four laser scanning schemes for tube bending, including point-source circumferential scanning, pulsed line-source axial procession, and line-source axial scanning without and with water cooling are investigated in numerical simulation. The coupled thermomechanical model established using the finite element method is validated and applied to predict the bending deformation and help better unders...
متن کاملLaser Assisted Bending for Efficient Light-weight-production
Currently hot-bending of sheet metals is generally avoided. If absolutely necessary, oven-heating is usually used, with the disadvantage of unacceptable heating and cooling times, big energy input, handling problems, and change of material parameters. Inductive heating is better but it still has the problem of a large heated area and the fact that for thin sheet metals high frequencies are need...
متن کاملA Study on the Laser Tube Bending Process: Effects of the Irradiating Length and the Number of Irradiating Passes
In this paper, the laser bending process of a circular tube made of mild steel has been investigated experimentally. For this purpose, the effects of the irradiating length and the number of irradiating passes on the main bending angle of a laser bent tube are studied. In addition, the main defects of the laser tube bending process such as lateral bending angle, ovality and thickness variation ...
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ژورنال
عنوان ژورنال: Archives of Metallurgy and Materials
سال: 2023
ISSN: ['1733-3490', '2300-1909']
DOI: https://doi.org/10.24425/amm.2019.126268