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Process for forging container extension rod

- Mar 21, 2018 -

When forging container extension rod, when we consider the forging temperature, we must pay attention to consider the temperature drop during the contact between the blank and the tool and die, and should preheat the tooling; forging the container when it is forging the extension rod. High-degree alloys should use slow deformation as much as possible. After that, it is necessary to pay attention to control each hammer or the deformation of each stroke of the press. Generally, it should be controlled at about 20%. Speed-sensitive materials should be selected. Deformation speed should also consider the effect of forging process degree of warm forgings.


When forging container extension rod, it should be noted that closed-die forging is much better than open-die forging, but open-die forging is better than free-forging, and in the forging process, the anvil is drawn. The upsetting of the ring and the upsetting of the circle can exert the plasticity of the metal more than the length of the flat anvil and the upsetting of the circle.


When the container extension rod is forged, low plastic elongation will be performed. At this time, attention should be paid to selecting the appropriate feed ratio. When the feed ratio is too small, the deformation will be concentrated in the upper and lower parts, the center will be forged, and it will be along the shaft. To produce tensile stress, it will inevitably lead to internal transverse cracks. When upsetting, soft padding is used for upsetting or stacking (for waffle-shaped parts). This also improves unevenness during deformation and prevents surface cracks.


When forging container extension rod, it is necessary to consider the forging process, especially the last fire forging, so as to avoid performing under the critical deformation level so as not to obtain coarse grain structure.


Specifically, when forging a container extension rod, the metal plasticity under high temperature is better, and the deformation resistance is small. At this time, a larger deformation amount larger than the critical deformation level should be used for forging; when low temperature correction, it should also be noted A small amount of deformation below the critical deformation level is used to perform partial dressing to expect to ensure the container extension pole quality.

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