After receiving the drawings, different cutting methods are selected based on the unfolded drawings and batch sizes, including laser, CNC punching machine, cutting board, mold, etc. Then, corresponding unfolds are made according to the drawings. CNC punching machines are affected by cutting tools, and for the processing of some irregular workpieces and irregular holes, large burrs may appear at the edges. It is necessary to carry out later deburring treatment, which also has a certain impact on the accuracy of the workpiece; Laser processing has no tool restrictions, a flat cross-section, and is suitable for processing irregular workpieces, but it takes a long time to process small workpieces. Placing workbenches next to CNC and laser is beneficial for placing the sheet metal on the machine for processing, reducing the workload of lifting the sheet metal. Some usable edge materials are placed in designated locations to provide materials for trial molding during bending.
After the workpiece is cut off, necessary trimming (polishing treatment) should be carried out on the edges, burrs, and joints. At the tool joint, a flat file should be used for trimming. For workpieces with larger burrs, a polishing machine should be used for trimming. At the small inner hole joint, a corresponding small file should be used for trimming to ensure the appearance is beautiful. At the same time, the trimming of the shape also ensures the positioning during bending, so that the workpiece is in the same position on the bending machine during bending, ensuring the consistency of the size of the same batch of products.
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