Category: Manufacturing Technology knowledge

In the process of metal pressure processing, heating technology has a great impact on product performance. At present, this problem has aroused great attention of industrial countries all over the world. As we all know, the purpose of forging parts is: first, forming; second, forging internal defects such as looseness and shrinkage cavity. For large forgings, due to the larger size and weight, the higher quality requirements, and the limited forging ratio, it is obvious that the main purpose is to forge the internal defects such as porosity and shrinkage cavity. Forging heating is an essential process in forging production,…

1. Tool material NC tool material is the fundamental factor to determine the cutting performance of the tool, which has a great impact on the machining efficiency, machining quality, machining cost and tool durability. The harder the tool material is, the better its wear resistance is. The higher the hardness is, the lower the impact toughness is, and the more brittle the material is. Hardness and toughness are a pair of contradictions, and also a key to overcome for tool materials. For graphite tools, common TiAlN coating can be used to select materials with relatively good toughness, that is, with…

In the grinding process, internal grinding is also a very common process. Internal grinding can process through holes, through holes, step holes, etc. on machine parts, so it is widely used in mechanical processing. The dimensional accuracy of machining can generally reach the tolerance grade IT6-IT7. If high-precision grinding process is adopted, the dimensional accuracy can be controlled within 0.005mm. So, what are the methods of internal grinding? 1、 Form of internal grinding Internal grinding can be divided into the following three forms: 1. Center type internal grinding During grinding, the workpiece rotates around the center line of the spindle…

In the last issue, we talked about the surface treatment processes that are often used in the post treatment of handboards: grinding, sandblasting, polishing, spraying, powder spraying, and UV spraying. Then today we will talk about other post-treatment surface treatment processes: printing, radium carving, electroplating, oxidation, blackening, wire drawing and phosphating. (Oxidation, blackening, wire drawing and phosphating are only applicable to metal parts) 1 Printing (1) Silk screen printing: part of the mesh of the screen printing plate can pass through the ink and miss printing to the substrate; The mesh of the rest of the plate is blocked and cannot…

Samples are produced by numerical control equipment, 3D printing, and copying. In the rapid prototyping process, in addition to high-quality machine processing, in most cases, it may also require a lot of manual or other instruments for post-processing operations. For general appearance products, it is required that the surface treatment should be as close as possible to the finished products before the appearance effect can be tested. Common surface treatment processes mainly include: grinding, sand blasting, polishing, spraying, powder spraying, UV spraying, printing, radium carving, electroplating, oxidation, blackening, wire drawing and phosphating. (Oxidation, blackening, wire drawing and phosphating are only…

With the increasing aesthetic and functional requirements of the product, the internal structure of the product is designed more and more complex, and the shape design of the mold is more and more complex. The proportion of free surface is increasing, and the corresponding mold structure is more and more complex. All of these put forward higher requirements for mold processing technology. High speed machining technology has been increasingly used in mold cavity processing and manufacturing. Compared with the traditional cutting, the cutting speed and feed speed of CNC high speed cutting have been greatly improved, and the cutting mechanism…

What is stamping? Stamping is a forming processing method of workpieces (stamping parts) with required shape and size by applying external force on plates, strips, pipes and profiles by press and die to cause plastic deformation or separation. The car body, chassis, fuel tank, radiator sheet, boiler drum, container shell, motor, electrical iron core silicon steel sheet, etc. are all processed by stamping. Instruments, household appliances, bicycles, office machinery, household utensils and other products also have a large number of stamping parts. According to the stamping processing temperature, it can be divided into hot stamping and cold stamping. The former is suitable…

At present, CNC high finish machining process (milling, turning) is not well known by technicians in most industrial industries. The actual work shows that they are really controlled by only a few production enterprises. The main reason is that the demand is not very strong in the past, which is also closely related to cognitionIn recent years, with the development of high-performance and high-precision CNC machine tools and the emergence of high-performance metal cutting tools, CNC high finish machining has made a great breakthrough. It is possible to replace grinding with milling (turning), which has become the goal pursued by…