1. Sheet blanking The CNC punch press is affected by the tool. For the processing of some special-shaped workpieces and irregular holes, large burrs will appear on the edges. The later deburring must be performed, and the accuracy of the workpiece will be affected to a certain extent. Schematic diagram of punching burr section Laser processing has no tool restriction, flat section, suitable for processing special-shaped workpieces, but it takes a long time to process small workpieces. Place the worktable next to the CNC and the laser, which is conducive to placing the sheet on the machine for processing and reducing the workload of lifting the board. Some usable side materials are placed in designated places to provide materials for trial molds during bending. 2. Familiar with drawings The sheet metal processing is based on the drawings, according to the different unfolded drawings and batches, choose different blanking methods, including laser, CNC punching, shearing, molds, etc...