The kinematically admissible velocity field and strain rate field for extension forging of rounds have been established.
建立了圆坯拔长锻造的运动许可速度场与应变速率场。
The effect of forging rate on strain is not obvious.
锻造速率对坯料应变的影响不显著。
Besides, in the position of larger value stress the local strain is smaller that coincide with the law of stress and strain change during the common forging process.
其次，应力值较大的地方应变值较小，符合锻造过程中的应力应变变化规律。
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