Sheet metal processing workpiece is sheet metal processing products, our life is inseparable from sheet metal parts. Sheet metal parts are made by filament power winding, laser cutting, heavy processing, metal bonding, metal drawing, plasma cutting, precision welding, roll rolling forming, sheet metal bending forming, die forging, water jet cutting, precision welding.
Sheet Metal Bending is a common processing technology in sheet metal processing, which is completed by bending machine. The bending machine can process the sheet into various angles required by customers. With the function of numerical control, the machining accuracy and production efficiency are effectively improved.
Order of bending:
Under normal circumstances, the bending starts from the periphery of the workpiece, and then to the center of the workpiece. If there are different bending structures inside or outside the workpiece, these structures should be folded first, and then the other parts.
If all four sides need bending, the general order of bending is to fold the short side first, then fold the long side, which is conducive to the processing of the workpiece and the assembly of the bending die.
Working principle of three-point bending bending method:
The three point bending bending method mainly uses a bending punch and a concave die to create a bending Angle on a plate. The two moulds, together with the bottom of the moulds at the height of the shell, form three points which determine the geometry of the bending Angle. The bending Angle is created by adjusting the height of the concave bottom.
The following describes the process steps of stainless steel sheet metal processing.
1. Blanking, select the next process after blanking, and enter the corresponding process according to the customer's processing requirements.
2. Stainless steel sheet metal workpiece in bending, pressure riveting and other processing procedures after the need for surface treatment. Plate is different, surface treatment means also is different. General cold plate processing after the need for surface plating, plating after 2 spraying treatment. And other processing will generally use vulcanization treatment, treatment and then spray. Plating plate class needs to be first surface cleaning, degreasing, spraying and other processes.
3 stainless steel plate in bending, according to the requirements of the drawings of the material, size to determine the bending tool and knife slot used. In order to prevent deformation, the selection of upper die is the key. The selection of the lower die should be determined according to the thickness of the plate. In order to ensure firm welding, it is necessary to hit convex points on the workpiece, convex points in the electric welding before the plate and uniform contact, to ensure that each welding point heating consistent.
4. After bending spraying for assembly, assembly, spraying with the protection of the original sticker to tear, determining the internal thread hole were not into the paint or powder, in the whole process, to put on the gloves, avoid dust attached to the workpiece, if found a debris or dirt on the artifacts, need to clean, can enter into the packing.