Category: Manufacturing Technology knowledge

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…

Generally, hot stamping is to heat the steel plate to about 900 ℃ austenite before stamping, and then cool the parts by rapidly injecting water into the stamping die. Through this thermal cycle and cooling process, the strength of the steel plate can be greatly improved, and the tensile strength can be increased from about 500MPA under delivery to about 1500MPa after hot stamping. According to different processes, hot stamping can be divided into direct hot stamping and indirect hot stamping. 01 Direct Hot Stamping Technology After blanking, the hot formed steel plate is directly heated to the austenitizing temperature without…

Aluminum alloy has long existed in our life, but in recent years, it has become the representative of Gao Fushai through the application of high-tech products. Especially in the competition of mobile phone design in recent years, Apple, Samsung, Meizu, Xiaomi, Huawei and others have made great efforts in the use of materials and processing technology Because of its easy processing, good visual effect and rich surface treatment methods, aluminum is the first to be used by various manufacturers. The surface treatment of aluminum profiles is mainly divided into: sandblasting (forming a matt pearl silver surface), polishing (forming a mirror…

Because of the complexity of NC processing (such as different machine tools, different materials, different tools, different cutting methods, different parameter settings, etc.), it is decided that the experience must be accumulated continuously in the long-term actual production process to engage in NC processing (whether processing or programming). 1、 What principles should be followed for the arrangement of processing sequence? The processing sequence shall be arranged according to the structure and blank condition of the parts, as well as the needs of positioning and clamping. The emphasis is that the rigidity of the workpiece will not be damaged. The sequence…

Unlike traditional manufacturing machines, 3D printers create objects by cutting or molding. The method of forming physical objects by stacking layers expands the scope of digital concepts from a physical perspective. 3D printer is the preferred processing equipment for shape design requiring precise internal concave or interlocking parts, which can be realized in the physical world. The following is a similar description of people from various industries with different backgrounds and professional skills. 3D printing helps them reduce major cost, time and complexity barriers. Let's take a look at the advantages of 3D printing. The advantages of 3D printing cannot…

One Quenching crack (1) Shape effect. It is mainly caused by design factors, such as small fillet R, improper hole location, and poor section transition. (2) Overheating (overburn). It is mainly caused by inaccurate temperature control or temperature run out, too high process setting temperature, and uneven furnace temperature. Preventive measures include: maintenance, calibration of temperature control system, correction of process temperature, and adding sizing iron between the workpiece and furnace floor. (3) Decarbonization. It is mainly caused by overheating (or overburning), unprotected heating in the air furnace, small machining allowance, residual decarburization layer in forging or preparation heat treatment,…