Transactions of Materials and Heat Treatment

Title：Research progress on pre-stress forming technology for sheet metal

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ClassificationCode：TG319；TG146.2

year,vol(issue):pagenumber：2022,47(7):1-8

Abstract：

The main characteristics of sheet metal forming are large proportion of elastic deformation in the process of materials deformation, poor formability of profile, and high dependence of the traditional forming process on equipment. Therefore, the technical methods and means of sheet metal forming need to be researched and improved in order to improve the forming precision of sheet metal workpiece and reduce the dependence on process equipment. In the process of pre-stress forming for sheet metal, the sheet is put in the state of elastic deformation, then the external load is applied in the sheet such as thermal load, impact load, and other loads. At last, the sheet deformation is realized. The results show that the pre-stress forming technology reduces dependence on process equipment, and the trend of sheet deformation is controlled relative to unconstrained forming. The sheet deformation amount increases with the increasing of pre-stress load. The external load of pre-stress forming can be laser load, creep aging load, peen impulsive load, laser peening impulsive load, and other loads.

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作者简介：陈晓伟（1983-），男，博士，副主任设计师 E-mail：chenxiaowei-1983@163.com

Reference：

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