Precision cold extrusion technology is a branch developed by ordinary cold extrusion in recent years. It is the result of the "hybridization" of ordinary cold extrusion and precision stamping technology, and the development prospect is very broad. In the early stage of the development of precision cold extrusion technology, cold pier extrusion has been used to solve product requirements. The main steps are: blanking - pier cake - softening annealing - phosphating saponification treatment - composite extrusion - separation - softening annealing - phosphating saponification treatment - reverse extrusion molding - separation cutting. The main problems of ordinary cold extrusion are: first, the product precision is low, generally can only reach 0.05mm. Second, the product production efficiency is low, because the material is small and the mold is difficult to install, the process steps are many, and the embryo material can only be manually loaded, and the daily output is only about 10,000 particles. These two fatal characteristics greatly affect the customer‘s demand for products and become a technical barrier for precision cold extrusion. EMAR Hardware was a manufacturer specializing in precision stamping and ordinary cold extrusion hardware parts before 2010, and has accumulated rich experience in precision stamping and ordinary cold extrusion. After 2010, in response to the increasingly strict requirements of customers for the precision of electronic parts and the increasing market demand, it was decided to invest in the research and development of precision cold extrusion technology. It is proposed to hybridize the precision stamping technology with the ordinary cold extrusion technology, hoping that the product can be made through the ordinary cold extrusion process but with the same high precision and high output as the precision stamping. The engineers of the EMAR technical department lived up to expectations. After three years of continuous research, they finally solved a series of problems and difficulties in the precision cold extrusion technology. In 2013, they applied for a patent certificate for the production process of the precision cold extrusion technology. The most difficult problem to solve in precision cold extrusion technology is the precision feeding process and the lubrication process of the embryo during continuous feeding. The precision feeding process cannot be solved, and there is one defective product for every 10,000 products. This is a very serious quality problem in the electronic product manufacturing industry. The lubrication of continuous mold embryos cannot be solved by phosphating saponification annealing and other processes like ordinary cold extrusion. It must be solved together with chemical masters. Fortunately, our engineers are patient and perseverant. After three years of technical support from Shanghai Jiao Tong University and the Institute of Materials Application of Harbin Institute of Technology, we have achieved today‘s precision cold extrusion technology. Precision cold extrusion technology research and development success this year has been 4 years, the 4 years we are still in continuous exploration and improvement, now can be different materials such as: iron-nickel alloy, stainless steel, oxygen-free copper, copper, high-speed steel, bearing steel, low carbon steel, hard aluminum and other materials for precision cold extrusion processing, product precision can reach 0.02mm, single mode daily output can reach more than 200,000 particles! Because the pressure of precision cold extrusion on parts is very large, and the damage to the mold is relatively fast, this requires experienced mold designers to improve the mold structure and punch structure, which is conducive to the flow of materials in the mold cavity. At the same time, the improvement of lubricating materials is also continuous. EMAR has come step by step. Die maintenance has gone from once every 3 days to once every 6 days to now being able to work continuously for 15 days and needs to be maintained once. It can be said that precision cold extrusion technology has matured, and it is time to harvest! Friends, if you have micro-precision electronic parts to start, look for EMAR hardware.