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Cold forging. Highest precision in a single operation: Cold forging
Source: | Author:William | Published time: 2022-08-29 | 435 Views | Share:

Cold forging is the process of choice when a precise result is required when using solid forging. With cold forming, a workpiece is formed at room temperature. In contrast, semi-hot or hot forging requires a temperature in the workpiece between 250°C and 700°C for the machining.

 

With cold forming, a distinction must be made between cold extrusion and cold solid forging. Cold extrusion is basically the normal and extrusion pressing of sheet metal parts or soft materials such as aluminum. With cold solid forging, prefabricated die-cast parts are pressed into shape. The changeable geometries are considerably smaller than with cold extrusion. Cold solid forging is therefore mainly used for straightening and finishing prefabricated die-cast parts. A typical example of cold solid forging are crankshafts, camshafts or gear shafts from the automotive industry.

One of the main advantages of cold forming is its low energy consumption. Since the workpiece does not have to be heated for machining, the manufacturing process is very energy-efficient. Due to the cold manufacturing process, there is no scaling of the surface, which is a further quality advantage of the workpiece.

 

However, the greatest advantage of cold or cold solid forging is the high dimensional stability of the manufactured product. The components come out of the press practically ready for installation and can be used immediately. Due to the tool steels available today, even complex components can be produced in high quality by cold forming.



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