How to choose the processing method of precision stainless steel filter screen

Precision stainless steel filter screen is a durable filter metal product, which is widely used in medical treatment, automobile, environmental protection, food, chemistry, chemical industry, machinery and other fields. In the process of processing, the processing method of precision stainless steel filter screen makes people somewhat puzzled. Here, how to choose the process in processing filter screen will be briefly described.

The early processing method of precision stainless steel filter screen is laser drilling or punching. Laser drilling has the advantages of low cost and is suitable for almost all metals, and there is no hard requirement for the hardness of metals. However, in the laser cutting process, the edges will be scratched, and there are some fine burrs between the apertures. The influence of material thickness on the tolerance requires 0.05% accuracy. Punching and punching requires the manufacture of molds, and the cost of a single mold is relatively high. For metals with too high or too low hardness, it is easy to break, and the edge will also produce scratches like laser. This processing method is very slow in mass production and is only suitable for making relatively few products.

So besides the above two ways, are there any other processing methods? The answer is yes, that is, etching the precision stainless steel filter screen. The thickness of the stainless steel filter screen can be considered as 0.01-2MM, and there is no need to make a mold. The method of metal film is adopted. The precision stainless steel filter screen has no burr, the product is not deformed, the hole wall is vertical, and excellent precision can be guaranteed, and mass production can be carried out. When considering the processing of the precision stainless steel filter screen, CAD drawings need to be made, and the best design scheme through etching is that the hole must be larger than the thickness.