Let’s talk about the sheet metal fabrication process flow.
Release time:
2025-11-26
After receiving the drawings, we select different blanking methods based on the developed layout and batch size. These methods include laser cutting, CNC punching, shearing, and die stamping. We then produce the corresponding developed layouts according to the drawings. Due to limitations imposed by the tools used, CNC punching is particularly suitable for processing certain irregular-shaped workpieces and non-standard holes.
After receiving the drawings, we select different blanking methods based on the developed layout and batch size. These methods include laser cutting, CNC punching, shearing, and die stamping. We then produce the corresponding developed layouts according to the drawings. Due to limitations imposed by the tools used, CNC punching is particularly suitable for processing certain irregular-shaped workpieces and non-standard holes.
At the edges, significant burrs tend to form, necessitating post-processing deburring operations, which can also have a certain impact on the precision of the workpiece. Laser machining is not constrained by tool limitations and produces smooth, flat cross-sections, making it well-suited for processing irregularly shaped workpieces; however, it tends to take longer when processing small workpieces. Placing workbenches next to CNC and laser machines facilitates the placement of sheet materials onto the machines for processing, thereby reducing the effort required to lift and position the sheets.
Some usable scrap materials are placed in designated local areas to provide material for trial bending operations. After the workpieces are blanked, the edges, burrs, and joining points must undergo necessary finishing (grinding). At tool joining points, use a flat file for smoothing; for workpieces with larger burrs, employ a grinding machine for finishing. For small internal-hole joining points, use appropriately sized small files to ensure a neat appearance. Moreover, this shaping process also guarantees accurate positioning during bending, ensuring that each workpiece rests consistently against the bending machine and maintaining uniform dimensions across the entire batch of products.
How much do you know about the sheet-metal fabrication process? After blanking is completed, the workpiece moves on to the next operation. Depending on the specific requirements of each part, it proceeds to the appropriate subsequent step. These steps include bending, riveting, flanging and tapping, spot welding, embossing, and step formation. Sometimes, after one or two bending operations, nuts or studs need to be pressed into place. In such cases, where molds are used for embossing and step formation, these operations should be performed first to avoid interference that might occur if other processes were carried out earlier, thereby preventing the completion of the required machining. If the upper cover or lower shell features snap-fit hooks, and these hooks cannot be welded after bending, they must be machined before the bending operation begins.
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