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Processing steps of sheet metal

November 28, 2022

1. Blanking: There are many ways of blanking, usually by several combinations.
a. Use the shearing machine to cut out the unfolded drawing, that is, the shape, length and width of the required sheet metal parts, combined with the punching machine and die punching, corner cutting, etc;
b. Punch blanking requires short working hours and high efficiency. The flat part structure after the parts are unfolded on the sheet metal step by step is formed by punching.
c. CNC blanking, through the preparation of CNC programs, CNC machine tools according to the program punching forming. In addition, there is laser blanking, that is, laser cutting.

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2. Flanging tapping: flanging is hole drawing, that is, machining a slightly larger hole on a smaller base hole to increase strength and prevent tooth slippage. It is usually used for thin sheet metal processing.
3. Punch processing: Punch processing is completed by the corresponding die, such as punching and corner cutting, punching and blanking, punching and bulge.
4. Riveting processing: operations are completed by a press or riveting machine, such as rivet studs, rivet nuts, and rivet screws.
5. Bending processing: generally, it is coordinated by the processing bending machine and bending mold to make the plane material into a three-dimensional shape.


6. Welding processing: welding refers to the combination of multiple parts, usually including robot welding, carbon dioxide shielded welding, argon arc welding, spot welding and other methods, which can be selected according to needs.
7. Surface treatment: It is usually used to protect materials from oxidation, and the material surface is coated with protective film, such as phosphating film, baking varnish, etc.
8. Assembly: combine several parts in a certain way to make them into finished products.