锻压技术

400 MN多向模锻液压机承载结构的普通模锻工作性能分析

英文标题：nalysis on ordinary forging performance for bearing structure of 400 MN multi-directional die forging hydraulic press

作者：王文杰林峰张磊王欣

单位：清华大学

关键词：多向模锻承载结构预应力正交预紧机架偏载

分类号：TG315;TB1

出版年,卷(期):页码：2016,41(3):54-58

摘要：

采用预应力钢丝缠绕正交预紧机架作为承载结构的多向模锻液压机进行单一垂直方向的普通模锻工艺时，垂直油缸提供的加载力被直接施加于毛坯件表面。由于所加工毛坯件的温度偏差、材质不均、形状不对称性等多种因素的影响，多向模锻液压机承载结构必然会出现偏心载荷状态，工况危险。因此，利用有限元分析方法和1:10模型试验，对400 MN多向模锻液压机承载结构在3种偏心载荷状态(前偏载、右偏载、斜向偏载)下的工作性能进行研究，得出在偏载状态下预应力钢丝缠绕正交预紧机架的变形特性与承载能力可以满足400 MN多向模锻液液压机的承载需求。

When the multi-directional die forging hydraulic press, which uses pre-stressed wire-wound orthogonal preload frame as bearing frame, carried out ordinary die forging process along the single vertical direction, the force provided by vertical cylinder was directly loaded on the surface of blanks. Due to the influences of many factors including temperature deviation, uneven material and asymmetrical shape of blanks, etc., the bearing structure of multi-directional die forging hydraulic press was prone to the eccentric loading and under dangerous working condition. Therefore, the bearing capacity and deformation characteristic of the bearing structure in the multi-directional die forging hydraulic press 400 MN were studied by finite element analysis and 1∶10 model experiment under three eccentric loading states (front eccentric loading, right eccentric loading and front-right eccentric lading), and the conclusion was got that the deformation and bearing capacity of pre-stressed wire-wound orthogonal preload frame can meet the design requirement of multi-directional forging hydraulic press 400 MN.

基金项目：

国家科技重大专项(2012ZX04010082)；国家863计划项目(2012AA040202)

王文杰(1985-)，男，博士研究生通讯作者：林峰（1966-），男，博士，教授，博士生导师

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