As an important means of metal plastic processing, hot die forging technology is widely used in the production of various metal parts. In the process of hot die forging, the role of the mold is very important, which directly determines the shape and accuracy of the product. In this paper, the design and manufacturing technology of hot die forging die will be deeply discussed in order to provide valuable reference for practice in related fields.
Hot die forging die design
Design principles: The principles to be followed in the design of hot die forging molds include: ensuring uniform metal flow, avoiding stress concentration, easy release, and ensuring mold strength and stiffness.
Material selection: According to the working conditions of hot die forging, the die material should have high thermal stability, high wear resistance, high strength and good toughness. Commonly used mold materials are tool steel, high-speed steel and cemented carbide.
Structural design: The structural design of the die needs to consider the characteristics of the hot die forging equipment, production process requirements and metal flow law. Reasonable structural design is helpful to reduce metal flow resistance, improve mold life and product quality.
Hot die forging die manufacturing technology
Traditional processing methods: including turning, milling, grinding, etc., mainly used for mold roughing and finishing. These traditional methods are technically mature, but have low processing efficiency and are suitable for small batch production.
Advanced manufacturing technology: such as electric discharge machining (EDM), wire cutting machining (WEDM), numerical control machining (CNC), etc., these technologies have high precision and high efficiency, and are suitable for complex shapes and large-scale production.
Heat treatment is the key process to improve the performance of the mold. Through quenching, tempering, surface strengthening and other treatment methods, the hardness, wear resistance and fatigue resistance of the mold can be significantly improved. Surface strengthening technologies, such as carburizing, nitriding, PVD coating, etc., can further improve the surface properties of the mold and extend its service life.
With the progress of science and technology, the design and manufacturing technology of hot die forging die will continue to develop. The application of digital design, 3D printing technology, artificial intelligence and other advanced technologies will bring new breakthroughs to the design and manufacturing of hot die forging molds. The hot forging dies of the future will be more efficient, accurate and durable to meet the more demanding production requirements.
The design and manufacturing technology of hot die forging is the core of hot die forging production, which directly affects product quality and production efficiency. Only by constantly innovating and improving the level of design and manufacturing technology can we better meet the market demand and promote the sustainable development of the hot die forging industry.
