At present, there are many kinds of bending machines for sheet metal processing, which can be divided into mechanical (servo motor) and hydraulic types according to the way of rotation. The control system can be divided into simple manual bending machines, ordinary domestic digital positioning bending machines, and process control digital full-function bending machines. According to the action, the part can be divided into 4 axes, 8 axes, and 12 axes bending machines.
Sheet metal fabrication as the name implies is to uses sheet metal processing according to the demand to do needed items. There are a computer case cabinet, TV backplane, car shell, air conditioner shell, terminal integrated case, charging pile box, and so on.
There are a variety of blanking methods, refer to the workpiece after laser cutting or CNC punch cutting, shearing machine process. CNC blanking and laser cutting blanking can be used for thick and complex plate workpieces; the Shearing machine can be cut out of the larger shape of the workpiece length and width size; the Punch press can batch use punch press will workpiece shape and hole processing.
2, smoke hole
Hole pumping also called flanging, refers to the use of a die in the ordinary press or other stamping equipment on the workpiece to form a round hole edge up the process. Is in the pre-punch hole into a specified size the hole, so that the workpiece can tap teeth with more strength, generally used in the thickness of 1.5mm plate on the workpiece.
3, pressure riveting
Generally refers to the use of punch or hydraulic riveting machine riveting studs, riveting nuts, riveting screws, and other firmly riveting pressure on the workpiece process.
Bending is the process of forming the workpiece by the bending machine with the bending bed and the related bending mold, which can strengthen the strength of the workpiece.
Common welding processing types are two protection welding, argon arc welding, electric welding, robot welding, touch welding, etc., the process is mainly to two or more two parts together, to achieve the purpose of finished products or assembly accessories processing; Or the edge seam of a single part needs to be welded so that the bending edge is precise to increase the strength of the folding.
6, surface treatment
The surface treatment has phosphating skin film spraying powder, electroplating colorful zinc, chromate, paint, oxidation, and so on. After phosphating skin film, the workpiece can be electrostatic powder spraying, which is suitable for cold-rolled sheets and galvanized sheets. Electroplating colorful zinc is generally used for surface treatment of cold-rolled plates and machined parts; Chromate and oxidation are generally used for surface treatment of aluminum and aluminum profiles. Surface treatment is to make the sheet metal parts as a whole look beautiful and play a protective role in themselves, the specific surface treatment is based on customer material requirements.
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