Study of Influence of Laser Cutting Sequence upon Thermal Deformation of a Base Sheet

概要

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In case that a lot of products were cut out from a wide base sheet by laser cutting, the sheet had been much deformed so that the error occurred in a height regulator. This paper deals with thermal deformation of a base sheet caused by laser cutting. We clarified that the thermal deformation was influenced by the cutting sequence in the case of SUS304 sheets of 1 mm thickness. The workpieces bent upward in inward sequence, and the workpieces bent downward in outward sequence. It was expected that the deformation was able to be controlled by cutting sequence.