Blind Rivet Shell Cutting for Damage-Free Removal

The blind rivet shell is segmented by cutting it along its longitudinal axis into two half-cylindrical parts. This segmentation releases the engagement between the internal thread of the shell and the external thread of the screw, allowing the screw to be extracted without damaging the workpiece. The cutting tool creates a separation that enables removal while preserving the workpiece integrity.

The harmful engagement between the threaded portions is extracted by cutting the shell. By removing the continuous structure of the shell along its length, the internal thread is disengaged from the external thread, allowing the screw to be taken out separately without the need for drilling that would damage the workpiece.

The shell is cut along its longitudinal axis before attempting to remove the screw. This preliminary cutting action releases the threaded engagement, making the subsequent screw removal simple and quick. Without this preliminary cut, the screw would be difficult to remove without drilling, which is both complicated and time-consuming.

The complex drilling process is replaced by a simpler cutting and extraction process. Instead of using a drill bit to remove the entire rivet assembly (which is complicated and time-consuming), the method substitutes a cutting tool that severs the shell's continuity, followed by simple extraction of the screw, greatly simplifying the operation and reducing time.