TA15支座梁模锻工艺优化

Optimization of Die Forging Process of TA15 Supported Girder

目的研究TA15支座梁锻件荒形减料及模具增设聚料仓的可行性。方法根据支座梁锻件的结构特点,并结合现模锻生产工艺,确定了减料后的荒形尺寸及模具上聚料仓的设置位置和尺寸,然后利用有限元软件对优化前后的成形过程进行了数值模拟分析,验证了优化方案的合理性。结果优化后的模锻成形载荷小于优化前的模锻成形载荷,且优化后锻件U型结构内多余材料的流动趋势较优化前也发生了较大改变。结论通过减料及设置聚料仓,支座梁模锻件不但更易打靠充满,成形火次减少,而且由于模压中间坯机加工难度及机加工周期均有所下降,锻件的交付周期也相应有效缩短。

The objective of this work was to study the feasibility of reducing the inter-part material and adding the material-gathering groove in the mould of TA15 supported girder. According to the structural characteristics of supported girder and the die forging process at present,the inter-part dimension after reducing materials and the position and dimension of the material-gathering groove in the mould were defined,then the feasibility of the optimization scheme was validated by simulating the die forging process after optimization with finite element software. The results showed that the forming load after optimization was smaller than that before optimization,and the flow trend of the superabundance materials in the Utype forged part after optimization had significant changes compared to before optimization. In conclusion,after reducing materials and adding the gathering material groove,not only the mould can be easily fully filled with materials and the forming times of forging was reduced,but also the delivery cycle of forged parts was shortened due to the reduce of the difficulty in the processing of intermediate slab and the cycle of inter-part machining.