1. Cutting:
Cutting is the process of cutting materials into the desired shape based on unfolding.
1.1 Cutting - Use a cutting machine to cut the desired shape. The accuracy can reach 0.2mm or above, mainly used for cutting strips or cutting clean materials.
1.2 Punching and cutting - Use a CNC punching machine (NC) or a regular punching machine for cutting. The accuracy of both cutting methods can reach over 0.1mm, but the former may have tool marks and relatively lower efficiency during cutting? Is the latter more efficient? But is the single cost high? Suitable for large-scale production.
1.2.1 Is the CNC punching machine fixed by upper and lower molds during cutting? Is the workbench moving to punch and cut sheets? Process the required shape of the workpiece. Our company's CNC punching machines mainly include two types: Tailifu and AMADA.
1.2.2 Does a regular punch press move through the upper and lower molds? Use a blanking die to punch out the desired shape of the material. Ordinary punching machines generally need to be matched with a shearing machine to punch out the required shape, that is, after cutting the strip material with the shearing machine, the punching machine can punch out the required material shape.
1.3 Laser cutting - using laser cutting equipment for continuous cutting of sheet metal? Obtain the required material shape. Its characteristics are high precision and the ability to process parts with very complex shapes? But the processing cost is relatively high.
2. Forming:
Sheet metal forming is the most important processing method in sheet metal processing. Forming can be divided into two types: manual forming and machine forming. Is manual forming often used as a supplementary processing or finishing work? Rarely used. But when processing some materials with complex shapes or prone to deformation? Still cannot do without manual shaping. Hand forming is accomplished using simple fixtures and jigs. The following methods are mainly used: bending, edging, trimming, arching, curling, and shaping.
We mainly discuss machine forming here: bending forming, stamping forming.
2.1 Bending Forming - Fix the upper and lower molds separately on the upper and lower workbenches of the folding bed? By using servo motors to transmit and drive the relative motion of the worktable, combined with the shapes of the upper and lower molds, the bending and forming of the sheet metal can be achieved. The forming accuracy of bending can reach 0.1mm.
2.2 Stamping forming - using the power generated by the flywheel driven by the motor to drive the upper mold? Combining the relative shapes of the upper and lower molds? Causing deformation of the board? Realize the processing and forming of components. The precision of stamping forming can reach over 0.1mm. Punching machines can be divided into ordinary punching machines and high-speed punching machines.
3. Connect
Sheet metal connection is the process of connecting different parts together in some way? Thus obtaining the desired product. Sheet metal connections can be divided into welding, riveting, threaded connections, etc.
3.1 Welding can be divided into CO2 welding, Ar welding, resistance welding, etc.
3.1.1 CO2 welding processing principle: Use protective gas (CO2) to mechanically isolate air and molten metal, preventing oxidation and nitriding of the molten metal Mainly used for welding iron materials, features: firm connection and good sealing performance, disadvantages: easy deformation during welding CO2 welding equipment is mainly divided into robot CO2 welding machines and manual CO2 welding machines.
Is Ar arc welding mainly used for welding aluminum and stainless steel materials? Its processing principle and advantages and disadvantages are the same as CO2, and the equipment is also divided into robot welding and manual welding.
3.1.3 Working principle of resistance welding: Using the resistance heat generated by the current passing through the welding piece, the welding piece is melted and heated to connect the welding pieces The equipment mainly includes the Songxing series, Qilong series, etc.
3.2 Riveting can be divided into: pressure riveting connection and rivet connection, etc. Is there a riveting machine commonly used for riveting? Rivet guns and POP rivet guns, etc.
3.2.1 Rivet connection is to press screws and nuts into the material parts? Make it possible to connect other parts through threads.
3.2.2 Rivet connection is the use of rivets to pull and rivet two components together
