Sheet Metal Processing, as the name suggests, is the process of using metal sheets to process the most needed items according to requirements. Common materials used in daily life include computer case cabinets, TV backboards, car casings, air conditioning casings, integrated terminal casings, charging station casings, etc. What are the processing techniques for sheet metal processing? The editor has summarized the following:

The main processes of sheet metal processing include cutting and cutting, CNC bending, punching and shearing, stamping, rolling, riveting, welding and other methods and processes. It can also be said that it is the working principle and control method of various devices. All sheet metal processing techniques are based on the need for sheet metal engineers to carefully design and label product drawings and specifications before operation. The main terms of technology include: cutting, riveting, bending, shearing, cutting, punching, expanding riveting, pulling nut, pulling riveting, riveting, cutting corner, forming, punching convex hull, punching tear, punching, expanding hole, punching mesh hole, chamfering, returning teeth, pulling hole, tapping tooth, leveling, drilling, sinking hole, tapping flat, welding, spraying, assembly, etc.

What are the common sheet metal processing techniques? As follows:

1. Cutting:

There are various cutting methods, which refer to the process of laser cutting, CNC punching, and shearing of workpieces. NC numerical control cutting and laser cutting cutting cutting can be used for processing thick and complex sheet metal parts; The shearing machine can cut workpieces with larger dimensions in length and width; Punching machines can be used in bulk to process the shape and circular holes of workpieces.

Laser cutting of sheet metal processing

2. Flipping edge

Flanging, also known as hole drawing, refers to the process of using a mold on a regular punch or other stamping equipment to form a circular hole edge on the workpiece. It is to draw a specified size hole on the pre punched hole, which can make the teeth punched on the workpiece stronger. It is generally used on workpieces with a thickness of less than 1.5mm.

Sheet metal processing copper bar punching

3. Riveting

It generally refers to the process of firmly riveting and pressing rivet bolts, nuts, screws, etc. onto the workpiece using a punch or hydraulic riveting machine.

Sheet metal processing riveting

4. Bending

Bending is a process in which a workpiece is formed by a bending machine using a bending machine and related bending molds, which can enhance the strength of the processed workpiece to a certain extent.

CNC bending of sheet metal processing

5. Welding

The common types of welding processing include secondary protection welding, argon arc welding, electric welding, robot welding, and butt welding. The process mainly involves welding two or more parts together to achieve the purpose of processing finished products or assembled accessories; Alternatively, the edge seams of individual parts need to be welded to achieve precise bending edges and increase bending strength.

Welding of sheet metal processing box

6. Surface treatment

Surface treatment includes phosphating coating powder spraying, electroplating of colorful zinc, chromate, baking paint, oxidation, etc. After phosphating coating, the workpiece can be electrostatically powder sprayed, suitable for cold-rolled and galvanized plates; Electroplating of colorful zinc generally involves surface treatment of cold-rolled sheets and machined parts; Chromate and oxidation are generally used for surface treatment of aluminum materials and aluminum profiles; Surface treatment is to make the sheet metal parts look aesthetically pleasing and provide protection for themselves. The specific surface treatment method depends on the customer's material requirements

Sheet metal processing cabinet door spraying

7. Assembly

It is the assembly of multiple parts or components according to the requirements of the drawing to form a complete workpiece product. The assembled workpiece may be a finished product or a semi-finished product.

Assembly of charging pile box for sheet metal processing