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The forging process of shaft forgings and other forgings

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The forging process of shaft forgings and other forgings

Release date:2019-03-05 Author: Click:

Tianfeng metal on the shaft forgings and other forgings forging process

Forging technology plays an important role in forging production. Due to different technological processes, the quality of forgings obtained (including shape, dimensional precision, mechanical properties, streamline, etc.) varies greatly, and the types of equipment used and tonnage are far from each other. Some special performance of forgings, can only change the material of high strength or new forging process to solve, such as aircraft engine turbine disc plate, the compressor, in use process, flange and disc hub temperature gradient is larger (300 ~ 400 ° C), in order to adapt to this kind of work environment, the double disk performance, through forging process and heat treatment process of appropriate arrangements, produce the double properties of plate can meet the high temperature and room temperature at the same time two kinds of performance requirements. Whether the technological process is arranged properly or not will not only affect the quality, but also affect the production cost of forgings. A reasonable technological process should be that the forgings obtained are of good quality, low cost, convenient and simple operation, and can give full play to the potential of materials.

The understanding of the importance of process is gradually deepened with the deep development of production and the continuous progress of science and technology. The appearance of isothermal forging process has solved the difficulty of forging large precision forgings and alloy with difficult deformation, which requires extra large tonnage of equipment and poor forming performance. Forging materials, forgings shapes vary greatly, the process used is not the same, how to deal with these problems is the task of forging engineers.

Forgings have a wide range of applications. The major stress components of movement were formed by forging, but the impetus for the development of forging (especially die forging) technology came from the manufacturing of vehicles -- automobile manufacturing and later aircraft manufacturing. As the size, quality and shape of forgings become larger and larger, the forging materials become wider and wider, and the forging becomes more difficult. This is because the modern heavy industry, the transportation industry to the product pursue the goal is the high reliability and the long service life.

For example, the thrust-to-weight ratio of aero engines is becoming more and more demanding. For some important stressed components, such as turbine disc, shaft, compressor blade, disc and shaft, the operating temperature range becomes wider, the working environment is more demanding, the stress state is more complex and the stress increases sharply. This requires the bearing parts have higher tensile strength, fatigue strength, creep strength and fracture toughness and other comprehensive performance.


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