About heat treatment and forging

2023-06-09

In general, heat treatment is after forging. Of course, forging is to be heated, and the general forging temperature is generally higher than the temperature of heat treatment, forging is a part forming method, to obtain parts blank; It is generally obtained from blanks used in important parts. Heat treatment is to improve the mechanical properties of parts.

Heat treatment must be done after forging, as any heat treatment prior to forging will be ineffective after forging. Because the forging temperature has long exceeded the austenitizing temperature. Relationship, they are all processes that need to be heated, which can change the mechanical properties of raw materials. The difference is that forging is to deform the material under the action of pressure after heating and insulation, so as to obtain an excellent blank with a certain shape and density. The heat treatment is to heat and insulate the workpiece to cool down at a certain cooling rate to obtain various metallographic structures, and does not macroscopically change the shape of the workpiece (there is a small heat treatment deformation). Different heating temperatures and different cooling rates result in a variety of heat treatment methods. And the heat treatment temperature is not necessarily the austenitizing temperature so high. But forging is to this temperature.

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2023-06-09