锻压技术

转炉出水口钢套充液拉深工艺优化有限元模拟

英文标题：

作者：陈健钱健清方进秀陈继平

分类号：TG394

出版年,卷(期):页码：2024,49(2):182-188

摘要：

以转炉出水口钢套为研究对象，根据零件几何尺寸，利用UGNX12.0三维模型软件建立模型，并结合DYNAFORM有限元模拟软件，进行充液拉深成形仿真及试验研究。对成品两道次的充液拉深液室压力和半成品的过渡形式进行研究，提出了斜底筒形件过渡方式，并探究了斜角角度对壁厚分布的影响。结果表明：第1道次拉深液室压力采用两拐点加载，设置2 MPa初始反胀压力和25 MPa最大液室压力成形效果最好；第2道次拉深的最大液室压力选用30 MPa可以有效避免起皱和破裂缺陷的产生；与普通筒形件过渡方式相比，采用斜底筒形件过渡更有利于拉深变形，其中45°斜角过渡拉深的效果最佳。通过有限元仿真确定了合适的工艺参数，获得了质量合格的转炉出水口钢套产品。

For the steel sleeve of converter outlet, according to the geometric dimension of part, the model was established by 3D modeling software UG NX12.0, and combined with finite element simulation software DYNAFORM, the simulation and experimental research on hydroforming was carried out. Then, the two-pass hydroforming liquid chamber pressure of finished product and the transition form of semi-finished product were studied, the transition method of cylindrical parts with inclined bottom was proposed, and the influence of bevel angle on the wall thickness distribution was explored. The results show that a two-inflection point loading path is used by the liquid chamber pressure in the finst pass of drawing, and the forming effect is best when setting an initial reverse expansion pressure of 2 MPa and a maximum liquid chamber pressure of 25 MPa. The maximum liquid chamber pressure of 30 MPa for the second pass of drawing can effectively avoid the generation of wrinkles and cracks. Compared with the transition method of ordinary cylindrical parts, the transition of cylindrical parts with inclined bottom is more conducive to deep drawing deformation, among which the 45° oblique angle transition has the best drawing effect. The appropriate process parameters are determined through finite element simulation, and a converter outlet steel sleeve product with qualified quality is obtained.

基金项目：

基金项目:安徽省教育厅重点项目(KJ2021A0356)；安徽省自然科学基金资助项目(1908085QE229)

作者简介：陈健(1998-)，男，硕士研究生

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