XTOP3D's independently developed XTSM sheet metal forming grid strain measurement system uses a high-resolution measuring head to capture images of stamping parts. By calculating the spatial coordinates of small dots prepared from multiple photos, it can obtain the deformation and strain distribution of automotive sheet metal, the thickness changes of hot spots and sheets, calculate the three-dimensional deformation of the sheet metal, and generate a forming limit diagram.

The XTDIC-FLC sheet metal forming limit measurement system is used to introduce the sheet metal forming limit measurement process. In conjunction with the sheet metal forming and cupping test machine, it sprays disordered speckles on the specimen to collect sequential video images of sheet metal deformation during the cupping test. Based on grid strain analysis, digital image correlation measurement and other technologies, the limit strain is directly obtained, and the forming limit curve FLC is generated to establish a forming limit diagram.

The XTOP3D XTDIC-FLC three-dimensional sheet metal forming limit measurement system, based on digital image correlation (DIC) technology, works with sheet metal forming and cupping testing machines. It directly obtains the limit strain based on grid strain analysis and generates the limit curve FLC, enabling rapid determination of the forming limit curve of FLC materials.