基于ANSYS的单法兰管接头多向模锻成形数值模拟分析
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摘要
由于管接头使用在高压环境,需要具备优良的力学性能。传统的锻造成形加工余量大、材料利用率低。针对上述问题,本文提出了采用多向模锻工艺生产单法兰管接头,研究了坯料位置以及冲头的速率差值两个关键参数对流速和载荷的影响。结果表明,当坯料中心相对于模具中心向左偏移4 mm时,左冲头的速率比右冲头的速率高1～3 mm/s时,两冲头之间的载荷差值最小。
Pipe joint is used in high pressure environment, therefore it is necessary to have excellent mechanical properties. The traditional forging forming has a large machining allowance and low material utilization ratio. In view of the above problems, the production of a single-flange pipe joint by multi-direction die forging process was put forward. The influence of two key parameters(blank position and rate difference of the punch) on the flow speed and load was studied.When the center of the blank shifts 4 mm to the left punch relative to the center of the die, the speed of the left punch is 1-3 mm/s higher than that of the right punch, the load difference between the two punches is minimum.
Pipe joint is used in high pressure environment, therefore it is necessary to have excellent mechanical properties. The traditional forging forming has a large machining allowance and low material utilization ratio. In view of the above problems, the production of a single-flange pipe joint by multi-direction die forging process was put forward. The influence of two key parameters(blank position and rate difference of the punch) on the flow speed and load was studied.When the center of the blank shifts 4 mm to the left punch relative to the center of the die, the speed of the left punch is 1-3 mm/s higher than that of the right punch, the load difference between the two punches is minimum.
引文
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[2]张莉,李升军.DEFORM在金属塑性成形中的应用[M].北京:机械工业出版社,2009:58-79.
[3]任运来,聂邵珉,苗雅丽,等.多向模锻技术的发展及应用[J].重型机械,2014(4):3-8.
[4]周杰,舒锐志,卢先正,等.一种双拔模加变斜面锻模结构参数优化设计[J].热加工工艺,2011,40(17):35-38.
[5]权帅峰.大口径闸阀阀体结构优化与可靠性分析[D].兰州:兰州理工大学,2009:25-29.