Learn about hot die forging: an advanced process for improving part quality

Hot die forging is an advanced process widely used in the field of mechanical manufacturing, which uses molds to form metal billets at high temperatures to improve the strength, toughness and corrosion resistance of parts, so as to improve product quality. This paper will introduce the working principle, process, equipment and effect of hot die forging in detail.

The working principle of hot die forging

Hot die forging means that at high temperatures, metal billets are put into the mold and plastic deformation is caused by applying pressure or impact force, so as to obtain the desired shape and performance of the parts. In the process of hot die forging, the metal blank is heated to the austenitic state, so that it has good plasticity and forming properties. At the same time, the shape and surface roughness of the mold will also affect the quality of the parts.

Second, the manufacturing process of hot die forging

The manufacturing process for hot die forging consists of the following steps:

Heating: The metal blank is heated to an austenitic state in order to undergo plastic deformation.

Shaping: The heated metal blank is put into the mold, and the pressure or impact force is applied to make it plastic deformation to form the desired shape of the part.

Cooling: The molded part is removed from the mold and quickly cooled to room temperature to prevent cracking or deformation of the part.

Cutting: The cooling part is cut to complete the final size and shape.

Third, hot die forging equipment

Hot die forging equipment includes press, cold die forging machine and hot die forging equipment. Among them, the press is mainly used to press parts, the cold die forging machine is used to deform and process the metal blank, and the hot die forging equipment can shape the metal blank at high temperature.

Fourth, the effect of hot die forging Hot die forging can significantly improve the quality of parts, its effect is mainly reflected in the following aspects:

Reduce surface defects: Through the hot die forging process, can reduce the surface of parts scratches, wrinkles and bubbles and other defects, improve the surface quality of parts.

Improve the fatigue strength: the hot die forging process can refine the grain of the metal blank, improve its mechanical properties, and thus improve the fatigue strength of the parts.

Improve corrosion resistance: The hot die forging process can improve the structure of the metal blank, improve its corrosion resistance, and extend the service life of the parts.

Improve production efficiency: The hot die forging process can achieve large-scale production, improve production efficiency and reduce production costs.

Fifth, the application of hot die forging

Hot die forging technology has been widely used in automobile, machinery, electronics and other fields. In the automotive field, the hot die forging process is mainly used to produce key components such as engines, transmissions and chassis. In the mechanical field, the hot die forging process can be used to manufacture high-strength, high-precision and high-corrosion resistance parts; In the field of electronics, the hot die forging process can be used to manufacture micro, precision and ultra-thin electronic components.

Compared with traditional process, hot die forging process has higher production efficiency and lower manufacturing cost, so it has broad application prospects in these fields.

As an advanced manufacturing process, hot die forging can use molds to form metal billets at high temperatures to improve the strength, toughness and corrosion resistance of parts, thereby improving product quality. By optimizing the manufacturing process and equipment of hot die forging process, the quality and production efficiency of parts can be further improved. Therefore, hot die forging process has a wide range of application prospects in automotive, machinery, electronics and other fields, and is worth further development and promotion.