1.3 In the bending process, the main considerations are tool selection, bending order, bending compensation, bending interference, etc. Usually there will be random sales of bending programming software, but most of the domestic CNC bending machine or manual programming, often rely too much on the experience of the master, on the other hand, the domestic manufacturing process requirements relative to foreign countries there is a certain distance, so the efficiency has not improved, the performance of CNC bending machine has not been played to the extreme.

1.4 Then, according to the product situation, welding, polishing, painting, assembly, packaging and other processes may be carried out, which will not be described here.

2 Overall, in recent years, the sheet metal industry can be described as rapid development. This is mainly due to the following reasons.

2.1 Increased demand for production capacity. China is increasingly becoming an international processing and manufacturing center, coupled with the increasing foreign investment, the demand for metal processing capacity is increasing, and the metal processing industry in the electrical control box, machine shell, etc., are generally sheet metal parts, so the demand for sheet metal processing capacity is also increasing.

2.2 Low processing precision requirements, easy to use. As far as gold processing is concerned, the precision is very common in a few wires, and the complexity of the process is relatively high, and even some parts reach dozens of processes. Therefore, gold processing enterprises usually need a variety of mechanical equipment to meet different process requirements. The punching accuracy of sheet metal is generally about ±0.1mm, and the bending accuracy can generally reach ±0.5mm, so the accuracy is much lower than that of gold processing.

2.3 High profit. For example, stamping can generally reach about 30%, while laser cutting can reach 50% or more.