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During the forging process, the forging temperature needs to be kept within a certain range. When determining the initial forging temperature, we need to ensure that the billet will not overheat during heating and avoid overheating reaction as much as possible. The initial forging temperature of forgings shall be within the appropriate range, because the initial forging temperature of forgings will decrease with the increase of carbon content.
More +The ultrasonic vibration quenching medium can eliminate the steam film on the surface of the quenched forging, improve the cooling speed, increase the strength of the quenching process, make the cooling more uniform, and avoid soft spots on the surface of the forging. The soft band, internal stress and deformation are significantly reduced.
This is especially true for large aluminum alloy forgings and die forgings. Due to the large external friction coefficient and poor fluidity of aluminum alloy, if the deformation speed is too fast, it is easy to cause defects such as peeling, folding and uneven grain structure of forgings. For high-strength aluminum alloy with low plasticity, it is also easy to cause forgings to crack. Therefore, aluminum alloy is most suitable for forging on low-speed press.
For forgings, the material is one of the factors that affect their malleability. Generally speaking, pure metal is superior to alloy, and alloy steel is superior to high carbon high alloy steel. Organized use of metal forgings. The ductility of forging is very poor for individual microstructure than for columnar structure, coarse grain structure, crystal boundary aggregation or eutectic structure of microstructure casting.
Precision forging forming technology (net forming) refers to the forming technology of forging forming layer of parts, which can meet the requirements of parts with only a small amount of processing or no more processing. Precision forging forming technology is an important part of manufacturing technology, and it is also widely used in automobile, mining, energy, construction, aviation, aerospace, weapons and other industries.
Forgings are bars forged with forging equipment. Generally, more complex workpieces cannot be forged, which requires a lot of processing. However, the forgings have dense organizational structure and are not prone to internal defects. They are widely used in valve seats, valve cores, valve stems and other valve seats, valve cores, valve stems, etc. In high-pressure and strongly corrosive alloy valves, forged valve bodies are also widely used.
Dongguan Lianshengwang Precision Technology Co., Ltd
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