A method of correcting the overall distortion of structural plates after laser forming

Abstract

The invention provides a method for correcting overall distorsion of a structural plate after laser forming. Aiming at overall distorsion deformation phenomenon of a light structural plate after laser forming, after a support device is used for correcting the light structural plate with overall distorsion deformation, the deformation of the corrected light structural plate is measured, the bending angles of the light structural plate in different positions on a scanning line path are measured, and subsequent correcting measures of the light structural plate are determined according to the deformation conditions of reinforcing rib parts in different positions. The correcting method corrects the light structural plate with overall distorsion deformation phenomenon after laser forming, so that the subsequent progressive forming process of the light structural plate is guaranteed, and the effectiveness and the yield of laser forming of the light structural plate are improved.

Description

technical field [0001] The invention relates to the field of plate processing, in particular to a method for correcting the overall distortion of a structural plate after laser forming. Background technique [0002] Sheet metal forming technology is widely used in modern aviation, aerospace, shipbuilding, automobile and other industries, and sheet metal parts account for a large proportion. Therefore, it is necessary to conduct in-depth research on sheet metal forming technology, master its forming mechanism and improve forming accuracy, so as to better Applied in practice; many scholars have carried out related research in this area and achieved many research results. Laser sheet forming technology uses laser beams to irradiate the surface of the metal sheet to generate a strong temperature gradient in the thickness direction of the metal sheet, induce uneven thermal stress, and then generate a bending moment at the cross-section of the sheet to act on the sheet, and at the...

AI Technical Summary

Problems solved by technology

The forming of lightweight structural panels mainly relies on traditional mechanical forming, aging forming, etc. The ribs of this type of plate are easy to break and fail under the traditional mechanical forming method. In addition, the springback phenomenon after forming makes the forming efficiency low. The cycle is long and the efficiency is low. Therefore, with the increasing application range of this kind of sheet metal, a rapid prototyping technology is urgently needed to meet the needs of the industry. Laser sheet metal forming technology is a kind of laser sheet metal forming technology because of its large forming flexibility. Good choice

[0004] The use of laser sheet forming technology to form lightweight structural panels is different from laser forming of ordinary flat panels. It is necessary to comprehensively consider the structural characteristics of lightweight structural panels. The phenomenon of overall distortion and deformation makes the sheet unable to continue forming. Therefore, for the overall distortion and deformation of lightweight structural plates after laser forming, it is urgent to provide a correction method to correct the overall distortion and deformation of lightweight structures after laser forming plate, thus ensuring the subsequent continuous forming process of lightweight structural plates

Images