Abstract
Large diameter and thin wall tube bending is challenging for mechanical methods. Although laser tube bending has been used for <2” diameter tubes, larger diameter laser tube bending is not thoroughly studied yet. This paper reports the challenges and our progress in large diameter laser tube bending. Special issues such as cooling, surface non-uniformity, beam shape and cross section deformation were investigated in comparison with small diameter tube bending.Large diameter and thin wall tube bending is challenging for mechanical methods. Although laser tube bending has been used for <2” diameter tubes, larger diameter laser tube bending is not thoroughly studied yet. This paper reports the challenges and our progress in large diameter laser tube bending. Special issues such as cooling, surface non-uniformity, beam shape and cross section deformation were investigated in comparison with small diameter tube bending.
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