Die casting is a frequently used metal injection molding technique that involves pouring the castable material into the mold, applying pressure to cause the material to deform during routine cold and hot processing, and then removing the castable material from the mold to create the desired shape.
In order to fulfill the demands of mass production, the die casting technique is helpful for reducing material consumption, may reduce the molding cycle, and the molding effect and performance are more stable.
Die casting production relies on the design of the die casting mold, which has a direct impact on the die casting process and molding outcome. The right die casting mold design can provide a product with good performance, while the incorrect design can result in process chaos and scrap, raising the cost of manufacturing and redesign. In order to ensure that the die casting mold has adequate wear resistance, acid and alkali resistance, corrosion resistance, as well as excellent sealing, thermal stability, and other excellent die casting performance, the die casting mold design must take into account the materials used, heat treatment methods, mold structure, mold size, mold parameters, surface purification, and other aspects.
Die casting mold design should make use of computer multi-body dynamic simulation and finite element analysis technologies in order to optimize the design using a new way, realize rapid product development, shorten the development cycle, and enhance product quality.
Although accurate design offers a solid foundation for the die casting of complicated parts, there are hazards involved as well, therefore die casting mold implementation must be continuously adjusted in accordance with the real working environment.
The features and scope of die casting technology applications
1.die casting technology characteristics
The two primary characteristics of the liquid or semi-liquid metal filling molding process used in die casting, as well as the two key distinctions between die casting technology and other casting techniques, are high pressure and high speed.
2. The uses for die casting technology
One of the most cutting-edge techniques for metal formation is die casting, and it works well to produce parts with little to no chipping.
Currently, the alloys utilized in die casting are gradually expanding to cast materials other than just zinc, aluminum, magnesium, and copper alloys.
Die castings are made from iron alloys like iron and cast steel.
Die casting mould material
According to the type of metal to be processed, the size of the load, the use of temperature and forming speed, different requirements are put forward to select different types of hot work die steel. The ω (c) of hot work die steel is generally 0.3 ~ 0.6%, when the carbon content is too high, the toughness and plasticity of the steel decline, and the thermal conductivity is poor; When the carbon content is too low, the hardness and wear resistance can not meet the requirements. Hot work die steel generally add Cr, Mn, Ni, Si and other elements to strengthen the ferritic matrix, improve the hardenability strength and toughness of steel, Ni can also improve thermal fatigue resistance, in order to refine the grain to improve strength and hardness, tempering stability, to prevent tempering brittleness, but also add Ni, Mo, V and other elements. In addition, Ni, Mo, V and other elements are precipitated in the form of carbide during tempering to produce secondary hardening, so that hot work die steel can still maintain a high strength at a higher temperature.
Aluminum mould
With its low density and high strength, aluminum alloy is becoming more and more popular. After its chemical composition was optimized, aluminum casting, hot extrusion, and artificial aging processes were used to improve its performance. Products made from aluminum alloy die-casting are primarily used in the electronics, automotive, home appliance, motor, and some communication industries. Large airplanes, ships, and other industries with high technical requirements also use some high-quality aluminum alloy goods with high performance, high precision, and high toughness, although their primary uses are still in some mechanical parts.
The aluminum alloy die casting technique is superior to conventional aluminum alloy forming technologies in the following ways: large variety of die casting; Gradually good stability and high dimensional precision; Casting strength, high surface hardness, low surface roughness, high productivity, high metal consumption rate, and so forth.
The development trend of die casting tool design
Mold design must take into account the user's pressing demands for quick delivery, high precision, and affordable mold manufacture.
The following growth trends will unavoidably exist:
1.Mold design from the conceptual stage to the direction of theoretical analysis and computer-aided design.
The mold business makes extensive use of CAD/CAM/CAE technology, which considerably enhances mold load and makes the mold construction more rational and scientific.
2.Precision, a faster mold design and manufacturing process, and a shorter product development cycle.
3.The CAD/CAE/CAM industry is moving toward integration, three-dimensionality, intelligence, and networking.
4. The mold evolves in the direction of accuracy, complexity, and large-scale; Knowledge-based Engineering (KBE) technology. 5.increase the level of standardization of molds and the rate of mold standardization utilization.
Ningbo Jiehuang die casting mould manufacturer High die-casting-mold, Ningbo jiehuang die casting company is developing in the direction of intelligence. Research and development of new die-casting materials to meet the needs of industrial technological progress. Research and development of new die-casting equipment, improve the level of automation, the development of new detection technology. Develop new die casting technology, improve and increase the die casting process level, increase die casting die life, reduce production costs, to solve the problem of black metal die casting.
