The development of China's casting mold industry to this day has gone through a difficult process, and it was still in a backward state until 1976. Since 1977, due to the vigorous development of my country's machinery, electronics, light industry, instrumentation, transportation and other industrial sectors, the demand for casting molds has increased in quantity, quality requirements have become higher and higher, and supply periods have become shorter and shorter . Therefore, relevant departments in our country have attached great importance to the casting mold industry. They have listed molds as key scientific research projects in the "Sixth Five-Year Plan" and "Seventh Five-Year Plan", sent people abroad for study and inspection, introduced advanced foreign casting mold technology, and formulated relevant casting mold regulations. Mold national standards. Through this series of measures, the casting mold industry has developed greatly and made breakthroughs in certain technical aspects. The Second Automobile Manufacturing Plant used new technologies and new materials to manufacture high-quality large-scale casting molds for Japan's Isuzu Plant, winning a good international reputation.

In order to shorten the mold making cycle and improve market competitiveness, mold companies are increasingly adopting high-speed cutting processing technology. HSM is generally used for large and medium-sized mold processing, such as automobile panel molds, die-casting molds, large plastic molds and other curved surface processing, and its curved surface processing accuracy can reach 0.01mm. The use of CNC high-speed milling technology in production can greatly shorten the mold making time. The mold surface after high-speed milling can be used with only a little polishing, saving a lot of grinding and polishing time. Adding CNC high-speed milling machines is one of the focuses of equipment investment for mold companies. (3) Electrical discharge machining is an indispensable process method in casting mold manufacturing. EDM is still an effective solution for machining deep and small cavities after quenching. Japan Sodick's linear motor servo-driven CNC EDM machine tools have the advantages of fast drive response, high transmission and positioning accuracy, and small thermal deformation. The EDM molding machine of Swiss Charmilles Company has P-E3 adaptive control system, PCE energy control system and automatic programming expert system, which play an irreplaceable role in casting mold manufacturing. (4) The development of precision, complex, and large-scale molds has placed higher and higher requirements on testing equipment. Nowadays, the accuracy of precision molds has reached 2~3μm, and the accuracy requirements of casting molds have also reached 10~20μm. At present, domestic manufacturers use more testing equipment such as three-dimensional coordinate measuring machines with digital scanning functions from Italy, the United States, and Germany. For example, the Casting Mold Equipment Factory of FAW Casting Co., Ltd. has a 1600mm × 1200mm coordinate measuring machine produced in Germany. It has a digital scanning function and can realize the entire process of mold manufacturing from measuring physical objects to establishing mathematical models, outputting NC codes, and finally realizing the successful implementation. Development and application of reverse engineering technology in mold manufacturing. Equipment in this area also includes: the British Renishaw company's high-speed scanner (CYCLONSERIES2), which can realize the complementary advantages of laser probes and contact probes. The laser scanning accuracy is 0.05mm, and the contact probe scanning accuracy is 0.05mm. 0.02mm. Using reverse engineering to make molds has many advantages such as short production cycle, high precision, good consistency and low price. (5) Rapid prototyping of casting molds has entered the practical stage, and the reliability and technical indicators of LOM, SLS and other methods have reached the level of similar foreign products. (6) Rapid manufacturing technology of mold blanks. There are mainly dry sand solid mold casting, negative pressure solid mold casting, resin sand solid mold casting and other technologies. (7) Users require shorter and shorter mold delivery times and lower mold prices. In order to ensure on-time delivery, effective cost management and control have become the main factors for the survival and development of mold companies. Adopting advanced management information systems to achieve integrated management is a task that needs to be solved for mold companies, especially large-scale mold companies. For example, the FAW Casting Mold Factory has basically implemented computer network management. From production planning and process formulation to quality inspection, inventory, statistics, accounting, etc., computer management systems are generally used. All departments in the factory can share information through the computer network. information. It has become inevitable to use high and new technologies such as information technology to transform the traditional production of mold companies.