Forging
Chenyang provides high quality forgings for automobile, rail transit, construction machinery, material equipment, agricultural machinery and many other industries.
Forging, as a major metal forming process, is a metal forming technology that uses local pressure. The forging process has been continuously improved to become more efficient, fast and durable. Forging usually uses an electric, hydraulic or compressed air driven forging press or forging hammer tool.
It is well known that hot forging can produce some higher strength parts than other metal manufacturing processes. We produce hot forgings ranging in weight from a few grams to more than ten kilograms. For forgings with high surface roughness requirements, we can provide further processing, including machining, surface treatment, etc.
Forging process
In the hot forging process, the metal is heated above its recrystallization temperature to cause plastic deformation, which needs to be kept high to avoid stress changes generated during deformation, and then it is pressed into a heated die. Since metal is hot, it "flows" easily, allowing us to make more complex shapes than cold forging.
For superalloy materials with low malleability, processes such as isothermal forging (deformation in a controlled environment) are used to avoid oxidation. Isothermal forging, also known as hot forging, is a hot working process that keeps the workpiece at the highest temperature during the entire forming process.
Maintaining this temperature is achieved by heating the mold so that the temperature of the mold can be controlled. After the workpiece is pressed on the mold by pressure, because the mold is also at a higher temperature, the local cooling of the workpiece between the mold working interface is avoided, which further improves the flow performance of the metal (workpiece).
Forging advantage
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Increase ductility
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Complex forming
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Maintain the strength of the metal
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Eliminate defects, impurities and porosity
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Relatively low cost
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High yield