With the rapid development of modern industry, high precision cold forging dies are more and more widely used in manufacturing industry. High precision cold forging die has the advantages of high efficiency, energy saving and environmental protection, and has become an important tool in modern manufacturing industry. This paper will discuss the design and manufacturing technology of high precision cold forging die, in order to improve the quality and life of die, reduce the cost and promote the development of manufacturing industry.
High precision cold forging die design
Mold material selection
The material selection of high precision cold forging die is very important, which directly affects the service life and manufacturing quality of die. Commonly used die materials include alloy tool steel, high-speed steel, cemented carbide and so on. In the selection of materials, it is necessary to consider the hardness, toughness, wear resistance, thermal fatigue resistance and other factors.
Die structure design
The structure design of high precision cold forging die should take into account the shape, size, precision and other factors of the product. Reasonable mold structure can improve the rigidity and strength of the mold and reduce the risk of deformation and cracking. At the same time, it is also necessary to consider the manufacturing process and maintenance convenience of the mold.
Die precision design
The precision design of high precision cold forging die is the key to ensure product quality. In the design process, it is necessary to take into account the product tolerance, surface roughness and other factors to ensure that the accuracy of the mold can meet the requirements of the product. In addition, it is also necessary to consider the influence of heat treatment, processing and other factors on the accuracy of the mold.
High precision cold forging die manufacturing technology
Processing technology
The machining technology of high precision cold forging die includes CNC machining, electric discharge machining, wire cutting and so on. These technologies can achieve high precision and high efficiency processing, improve the quality of the mold and manufacturing efficiency. At the same time, it is also necessary to consider the influence of cutting force, thermal deformation and other factors on the accuracy of the mold during the processing.
Heat treatment technology
Heat treatment is an important step in the manufacturing process of high precision cold forging die. By heat treatment, the mechanical properties of the material can be improved, the residual stress can be eliminated, and the service life of the die can be increased. Commonly used heat treatment processes include quenching, tempering, surface strengthening and so on. In the heat treatment process, it is necessary to strictly control the temperature, time and other parameters to ensure the effect of heat treatment.
Detection and correction techniques
After the high precision cold forging die is manufactured, it needs to be tested and corrected. Commonly used detection techniques include coordinate measurement, optical projection, etc., which can accurately detect the size and shape accuracy of the mold. If the mold is found to have deviations or defects, it needs to be corrected. The correction methods include grinding, polishing, etc., to ensure that the quality and accuracy of the mold meet the requirements.
The design and manufacturing technology of high precision cold forging die is an important part of modern manufacturing industry. Through reasonable selection of materials, optimization of structural design, improvement of processing technology and heat treatment technology, the quality and life of the mold can be improved, costs can be reduced, and the development of the manufacturing industry can be promoted. In the future, with the continuous emergence of new materials and new technologies, the design and manufacturing technology of high-precision cold forging dies will usher in greater development space and challenges. We should continue to innovate and explore new technologies and new methods to meet the growing needs and requirements of the manufacturing industry.
