Study on the Quality of TA2 Sheet in Laser Bending Deforming Area
In order to study the quality of TA2 sheet in laser bending deforming area, SM2000 CO2 laser of 2.5kW is used to irradiate 0.6 mm thick TA2 sheet, and the change of the surface properties of the TA2 plate after laser forming was investigated with the X-ray stress analysis instrument (type: X-350A), Digital Micro hardness Tester HVS-1000 and Scanning Electric Mirror (SEM ) respectively. The result of the experiment indicates: the roughness of the forming sheet after bending will increase. The roughness of deforming area increases dramatically. The further the surface from the bending area, the less roughness in the bending area, residual stress changes regularly. The organization of the deforming area is changed, and the branch crystal forms on the surface of the forming sheet. The diameter is about 0.5μm. The branch crystal grows upward.
Liangchi Zhang, Chunliang Zhang and Tielin Shi
Y. J. Zhou "Study on the Quality of TA2 Sheet in Laser Bending Deforming Area", Advanced Materials Research, Vols. 139-141, pp. 326-329, 2010