When metal powder injection molding (MIM) combines the characteristics of powder metallurgy and injection molding technologies, the original limit of metal powder is destroyed, so the molding process has a greater breakthrough in product shape. MIM uses powder metallurgy technology to sinter, and has mechanical parts and surface quality with good mechanical properties. At the same time, it can produce a large number of high-efficiency parts, with a large-scale and efficient production of parts with plastic injection technology.
Parts with complex injection technology characteristics include external surfaces, cross holes, penitent stations, surface rolling, reinforced bibs, various external slots, etc. All parts are all parts. It is impossible to use traditional powder metallurgy methods, precision casting and other processes.
Metal powder injection molding can also improve product design freedom; and irregular shapes such as holes, grooves, recesses and filling parts can be designed; various labels, printing, trademarks, etc. can be added to the surface and the inside of the hole. Various internal and external threads can be processed directly; the surface or electroplated surface can make the parts more beautiful; if there are hardness or other special requirements, the product can also be processed and heat treated after sintering.
In the cost analysis of the metal powder injection molding process, it can be understood that the material or geometry or geometry of the material is complicated, and the material is deflected or contaminated during casting, and the MIM process can greatly save costs. Take Processed TypeWriter as an example: 14 steps usually require 14 processes, and only 6 steps can save more than half of the cost. When the ratio of material cost/manufacturing cost increases, the potential cost is more reduced, so the parts are smoother and the economic benefits are better. Through the above analysis, it can be seen that the potential of MIM molding is huge.
