Points to note when cutting stainless steel sheet

The use of CNC plasma cutting machine and laser CNC cutting machine equipment to realize the processing of stainless steel sheet is the current mainstream processing method. As a low-priced material, the requirements for welding performance are different for different purposes. A type of tableware generally does not require welding performance, even including some pot companies. However, most products require good welding performance of raw materials, such as Class II tableware, thermos cups, steel pipes, water heaters, and water dispensers.

Sheet cutting is mainly used in advertising, sheet metal and other industries. Generally, the main processing material is stainless steel, and the processing thickness is generally below 3.0mm. When choosing a cutting machine, CNC plasma cutting machine is generally used for cutting. Choosing this cutting machine is mainly because of its fast cutting speed, low cutting cost, and more importantly, there will be no burning problem. If you choose a CNC flame cutting machine to cut thin plates, there will be burning problems, and cutting stainless steel It is impossible to use flame cutting machine to finish the board. CNC plasma cutting is superior to CNC flame cutting in terms of cutting quality and cutting benefits in the processing industry. It can cut various metals with different working gases, especially for non-ferrous metal sheets. However, as a thermal processing equipment, a CNC plasma cutting machine will inevitably undergo thermal deformation during the cutting process. Studies have shown that choosing different cutting processes in the cutting process can effectively improve the amount of deformation.

Super duplex stainless steel

Super duplex stainless steel

Through the study of the deformation law and the influence range of the workpiece cut by the CNC plasma cutting machine, it is found that the appropriate plate leveling treatment is carried out before the cutting, and then the plate is fixed reasonably, which can effectively prevent the workpiece from moving during the cutting process , This can prevent or reduce the occurrence of thermal deformation; at the same time, when programming a cutting program, choose a reasonable cutting process to make the maximum size surface of the workpiece separate from the mother board; when cutting slender or special-shaped parts, Control methods such as two-piece matching cutting can also effectively prevent and reduce the thermal deformation of the cut workpiece.

The CNC plasma cutting machine can cut all kinds of metals with different working gases, especially when cutting non-ferrous metals, its cutting effect is better, but as a thermal processing equipment, thermal deformation accidents may also occur during the cutting process, so in order to be able To effectively avoid thermal deformation accidents, different cutting processes should be selected for cutting during the cutting process.

Of course, in the actual processing and production, the CNC plasma cutting machine for the processing and use of stainless steel sheet also has many details worthy of our attention.Below we will explain the problem of the arc voltage control height of the cutting torch of the CNC plasma cutting machine:

1.The automatic slitting and board edge recognition function allows cutting from the edge of the workpiece, which improves the utilization rate of materials and reduces waste. At the same time,it can effectively protect the cutting torch and cutting nozzle, thereby increasing their service life.

2.Through the keyboard, set the tracking arc voltage reference value. During the cutting process, the arc voltage setting value is adjustable, so that the tracking height during the cutting process can be adjusted to facilitate better cutting quality.Initial positioning function: After the cutting nozzle at the end of the cutting torch is in contact with the workpiece, the cutting torch is accurately raised to the position of arcing height and cutting torch height within the range of millimeters.

3.With linear bearing lifting mechanism, once the force of the torch against the workpiece exceeds the range, the lifting mechanism will slip without damaging the machine. Through the keyboard, the lifting mechanism can be manually adjusted to complete the lifting and lowering actions.

4.Arc voltage automatic tracking function: Through the arc voltage sensor, the cutting torch height is always constant during the whole cutting process, even if the workpiece is uneven, the cutting can still be carried out. The constant cutting torch height ensures a high level of cutting quality.