Three Major Processes of Sheet Metal Processing
Sheet metal processing: shearing, cutting, punching
Shearing, cutting, and punching are one of the three main processing of sheet metal. This step is to cut and cut out the desired shape of the sheet metal, or use a knife to punch out the desired hole and remove the excess sheet metal, so it can be regarded as a kind of material reduction, widely seen is laser cutting, which can be divided into CO2 or more advanced fiber laser. The power consumption of fiber laser is 1/3 of that of CO2 laser cutting in a month, and the beam is thinner, which can cut more detailed workpieces. It will not be burned and deformed, accurate and energy-saving.
Sheet Metal Processing: Forming
After laser cutting, the sheet metal is a flat metal plate. When it comes to forming, "bending" is t common method of sheet metal line processing. In addition, there are die stamping (convex/concave), rounding, etc. One of the processing methods of sheet metal forming.
Metal bending is not as easy as paper bending. Metal materials have certain hardness and toughness, and relatively stronger pressure is required for bending and forming. The bending sequence is also very particular. It needs to be folded first without interfering with the next knife. Interfering backfolding, depending on the grade of equipment, affects the fineness of the bending.
Sheet metal processing: assembly and assembly
This process assembles and combines scattered workpieces into a finished product through welding, fastening bolts, rivets, etc.
Common is welding, and usually the same plate thickness and material are combined, and occasionally there is a combination of different materials, such as black iron and white iron welding. The two common types of welding are CO2 welding and argon welding. CO2 welding is usually used for iron plates, while argon welding is used for stainless steel or aluminum plates. The new technology is fiber laser welding, just like the fiber laser automatic welding introduced by our company. Welding arm, more stable heat, beautiful weld bead.
The welding process will generate extremely high heat energy, and the metal will be deformed, so sometimes it is necessary to make additional auxiliary workpieces such as jigs and fixtures to assist the welding process. And the combination of items requires alignment, and precision sheet metal workpieces are no exception. Usually, alignment is done in the form of "punching points", "positioning teeth" or "opening pins" during drawing.
