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      Characteristics and key points of development of cold (warm) forging press

      Date:2022-03-30 17:05:08       Number of views:

      Characteristics and key points of development of cold (warm) forging press

      The cold (warm) forging press mentioned in this paper refers to the press which mainly focuses on the function of cold forging and can give consideration to the function of warm forging (room temperature ~ 800 ℃). The discussion focuses on the characteristics and development points of cold forging press, which will be specially noted when considering the function of warm forging. Because the special warm forging press is generally evolved from the hot die forging press, it is very different from the cold forging press. Multi station forming, especially the multi station cold (warm) forming technology of gearbox input and output shaft, is becoming more and more mature.

      Cold forging press

      Although the hydraulic press is suitable for cold (warm) forging process, it has the disadvantages of low efficiency, high energy consumption, high noise, easy leakage, poor anti eccentric load ability and difficult to realize multi station. The mechanical cold forging press has a reasonable main transmission mechanism (which can take into account the speed and production efficiency of the forming area) The clearance between the large diameter forging machine and the precision forging hole can be controlled between 1.0-0.05% and 0.05%, and the clearance between the cold forging machine and the precision forging hole can be controlled between 0.05% and 0.05%, and the precision forging hole can be controlled, Therefore, in the field of multi station cold (warm) forging, hydraulic press will be gradually replaced by mechanical press.

      There are three typical main transmission mechanisms of mechanical press: crank connecting rod mechanism, elbow bar mechanism and deformed elbow bar mechanism. The crank connecting rod mechanism is suitable for hot (warm) forging, and the elbow bar mechanism and deformed elbow bar mechanism are suitable for cold (warm) forging.


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