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

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 to be the working principles and operation methods of various devices. All sheet metal processing techniques require sheet metal engineers to carefully design product drawings and annotate specifications before operation. The technical terms mainly include: cutting, riveting, bending, cutting, dropping, punching, expanding riveting, pulling nut, pulling riveting, riveting, cutting corners, forming, punching convex hull, punching tearing, punching printing, expanding holes, punching mesh holes, chamfering, returning teeth, extracting holes, tapping teeth, leveling, drilling, sinking holes, flattening, welding, spraying, assembly, etc.

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 can be used for processing thick and complex sheet metal parts; The cutting machine can cut out workpieces with larger dimensions in terms of length and width; Punching machines can be used in batches to process the shape and circular holes of workpieces.

Sheet metal processing laser cutting

2. Flip up

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

Sheet Metal Processing Copper Bar Punching

3. Press riveting

Generally refers to the process of firmly riveting and crimping rivet bolts, rivet nuts, rivet screws, etc. onto workpieces using punching machines or hydraulic riveting machines.

sheet metal processing riveting

4. Bending

Bending is the process of shaping a workpiece from a bending machine using a folding bed and related bending molds, which can enhance the strength of the processed workpiece to a certain extent.

Sheet Metal Processing CNC Bending

5. Welding

The common types of welding processing include double shielded 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 parts; Or the edge seams of individual parts need to be welded to make the bent edges precise and increase the folding strength.

Sheet Metal Processing Box Welding

6. Surface treatment

Surface treatment includes phosphating film powder coating, electroplating multicolored zinc, chromate, baking paint, oxidation, etc. After phosphating film, the workpiece can be subjected to electrostatic powder coating, which is suitable for cold-rolled and galvanized sheets; Electroplating of multicolored 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 achieve a beautiful appearance and provide protection for sheet metal parts as a whole. The specific surface treatment method depends on the customer's material requirements

Sheet Metal Processing Cabinet Door Spray Coating

7. Assembly

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

Assembly of charging pile body for sheet metal processing