> Differences Between Cold Forging and Hot Forging
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Differences Between Cold Forging and Hot Forging

Doris Wang 2025-04-27 13:52:21

The table below summarizes the differences between cold forging and hot forging.

processing method          Cold Forging           Hot forging
Temperature    normal or average or fixed temperature    900-1,200°C (above recrystallization temperature)
feature    High deformation resistance Small dimensional change    Low deformation resistance Large dimensional change and poor accuracy after machining
Advantages    High accuracy can be achieved.    Capable of processing large items
Disadvantages    Molds are prone to wear and tear    Secondary processing is required, which is costly.
Main Products    Relatively small screws, bolts, nuts, washers, etc.    Relatively large high-pressure valves, pumps, cylinders, etc.
As shown in the table above, the key point is to choose cold forging when high precision is required for small products and hot forging when mass production of large products is desired.

However, it may vary depending on the product type, material, shape, required accuracy, etc. Please consult with a specialist first.