Abstract
Application of a thermal source in non-contact forming of sheet metal is known for some
time. Replacement of this thermal source with a laser beam promises the much greater controllability
of the process. To date, research focuses on dealing with rectangular plates, and only a few studies
are presented for axis-symmetric geometries like circular plates. This study presents the work to
get the dish or bowl shape by an initially flat circular plate. Two different scanning strategies
circular and radial are attempted to get the desired dish shape. Following the unexpected distortion
throughout the plate, a second series of experiments are conducted on a wide range of specimen
geometries. An interesting phenomenon is observed. It is suggested that homogeneous dissemination of
heat along with combined form of both of the scanning strategies, could have more potential to form
dome shape.
© 2013 Chinese Optics Letters
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