There are many types and sizes of stainless steel stamping parts, commonly used are 300 series, 3300 series, etc., and there are more than 3 kinds of materials. In order to facilitate everyone to accurately understand and use the types and sizes of stainless steel stampings, let’s first take a look at the shapes of stainless steel stampings. Common ones are 300 series, 800 series, etc. According to their shape structure and material difference, they can be divided into cold-rolled sheet, cold-rolled strip, cold-drawn round steel, etc.; Chromium-nickel-chromium steel plate, austenitic stainless steel plate, martensitic stainless steel, etc. According to its use, it can be divided into ordinary steel plate, chrome-nickel-chromium steel plate, martensitic stainless steel, etc.; according to its appearance, it can be divided into silver white, silver, purple red, brown, etc.; according to its structure, it can be divided into stainless steel, chrome-nickel steel, etc. Stainless steel plate, chrome-nickel-chromium-chrome steel plate, martensitic SUS304, austenitic SUS3163B, etc.; according to their corrosion resistance, they can be divided into ordinary steel and special steel with good corrosion resistance, atmospheric corrosion resistance and heat-resistant medium corrosion. ; According to its processing performance, it can be divided into heat-resistant stainless steel and steel with good corrosion resistance.
1. Stamping part processing technology In the production and processing process of stamping parts, the steel plate is mainly stamped and formed through a die.
In the production process, stamping is a very important processing technology. According to the different plates, the stamping process can be divided into cold and hot stamping, cold drawing and hot stamping. Stamping parts of various shapes can be produced through this process. There are also many forms of stamping parts used in the actual production process, but the main forms commonly used are cold drawing method, cold drawing round steel method, hot pushing round steel method, hot expanding round steel method @ French steel method, hot expanding method Round bar method and thermal expansion round bar method, etc.
2. In the forming process of stamping parts, in order to ensure the surface quality of the steel plate and prolong the service life of the stamping parts, it is necessary to weld or stamp the stamping parts.
The welding or stamping of the steel plate in the stamping process is one of the important processes in the forming process of the stamping parts. When the welding process is adopted, the purpose is to ensure the surface quality of the steel plate and prolong the service life of the stamping parts. During the stamping process, welding or stamping should also be adapted to the shape and size of the stamping parts, and the product structure should not be complicated punching and combination. Due to the high butt welding process of stainless steel stamping parts, thermal welding forming technology is generally used between the stamping layer and the weldment. For example, fillet welds, web welds, etc. are stamped from thick steel plates of different thicknesses. However, due to uneven stress or poor deformation of the steel plate, improper adjustment of process parameters, etc., it is easy to cause structural defects and uneven size of the surface layer of the steel plate. In order to make the surface quality of the stamping parts good and meet the design requirements, sometimes the punched plate after stamping is trimmed or flanged, and then sent to the machining process for re-stamping to the required external dimensions and structural dimensions. This kind of trimming and flanging operation not only requires the operator to have a high technical level and high operating skills, but also to master the theoretical knowledge and application technology of various stamping processes.
3. Stamping parts have good plasticity and strength on the stamping part punching table, so their stamping forming accuracy is relatively high.
Since the stamping part itself is stamped with a certain geometric shape, the precision of the punching table is relatively high. Of course, the stamping process will also have a certain impact on the use of the mold, so in order to ensure the normal operation of the mold, it should be taken into account in the selection of materials and the manufacturing process. It is usually made of high-grade alloys or high-quality materials, after heat treatment and special processes. On this basis, different types of alloys or high-quality steels are used. For example: 310 series stainless steel, 304 series steel, 316 series steel, 415 series steel and so on.
4. It is very normal for stamping parts to corrode and wear during use.
Stamping parts need to check whether their material is suitable and whether there are scratches or scratches on the surface before stamping. Stamping parts are prone to deformation after production and processing, and abnormal wear occurs during use. These phenomena are easy to be ignored, as long as a little observation can be found, they are generally caused by scratches and wear on the surface of stamping parts. At this time, appropriate measures should be taken to repair. In addition, with the application of the new process, the appearance of stamping parts has changed, such as surface defects such as burrs and cracks. When selecting equipment, it should be selected according to its use environment. If the environment is too poor, low-alloy stainless steel can be selected. When the environment is too poor, its corrosion resistance is poor, martensitic stainless steel should be selected.