锻压技术

汽车盘体零件闭式锻造工艺研究与模具设计

英文标题：Closed forging process study and die design for automobile disc part

作者：万轶1 陈林2

分类号：TG316.3

出版年,卷(期):页码：2022,47(12):14-20

摘要：

以汽车盘体零件为研究对象，针对开式锻造和机加工生产方式耗时废材、产品质量稳定性差的问题，提出采用闭式锻造成形技术。首先，根据零件的结构特征，确定了成形方案，并设计了3种预锻件结构；其次，利用Deform-3D软件建立了材料的高温流变应力模型及有限元分析模型，并对3种不同方案下盘体零件的成形过程进行了数值模拟，分析了零件的成形结果，比较了预锻工序和终锻工序的最大成形力及模具磨损情况；最后，根据最佳方案设计了闭式锻造模具结构，并进行了实际锻造试验。结果表明：该工艺可靠，模具结构稳定且无异响，脱模流畅，获得的汽车盘体零件成形良好，无充不满、刮痕等缺陷，尺寸质量满足要求，为企业降低了生产成本。

For the problems of time-consuming, waste material and poor product quality stability in open forging and machining production methods, the closed forging forming technology was proposed for automobile disc parts. Firstly, according to the structural characteristics of part, the forming scheme was determined, and three kinds of pre-forgings structures were designed. Secondly, the high temperature rheological stress model and finite element analysis model of material were established by software Deform-3D, and the forming processes of disc body parts under three different schemes were numerically simulated. Then, the forming results of parts were analyzed, and the maximum forming forces and die wears between the pre-forging process and the final forging process were compared. Finally, the closed forging die structure was designed according to the best scheme, and the actual forging test was carried out. The results show that the process is reliable, the die structure is stable, there is no abnormal noise, and the demolding is smooth. The obtained automobile disc body parts are well formed, and there are no defects such as insufficient filling and scratches. The size and quality meet the requirements, which reduces the production cost for the enterprises.

基金项目：

中国博士后科学基金资助项目（2019M651642）;江苏省高等学校自然科学研究项目（19KJB460006）

万轶（1982-），女，博士，副教授 E-mail：yiwan@njxzc.edu.cn

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