锻压技术

面向超塑成形工艺的数字孪生系统研究

英文标题：Research on digital twin system for superplastic forming process

作者：李运硕1 周雨威1 2 袁傲明1 2 刘晨枫1 2 董琬婷1 2 李永兵1 2 熊成悦1 2 3 孙慕齐1

单位：1.中国机械科学研究总院集团有限公司先进成形技术与装备全国重点实验室 2. 北京机科国创轻量化科学研究院有限公司

分类号：TP271

出版年,卷(期):页码：2023,48(10):19-199

摘要：

为解决超塑成形工艺中热-力-气多物理场集成控制的难题，提升轻量化多层复杂结构件的成形质量、生产效率和产品一致性，通过信息技术与材料、工艺及设备的融合，开发了一种超塑成形工艺数字孪生系统。研究了超塑成形生产单元的物理模型、基于工艺流程的数字孪生体建模、基于边缘网关的多源异构数据采集存储、工艺数据库和数据可视化等关键技术。最后，在自主研发的8000 kN超塑成形/扩散连接设备上开展了实验验证，完成了TC4钛合金半球成形全过程，实现了对超塑成形设备和工艺的可视化监测与控制。为实现超塑成形工艺的数字化、自动化、智能化提供了途径和方法。

In order to solve the problem of thermal-force-gas multi-physics integrated control in superplastic forming process and improve the forming quality, production efficiency and product consistency of lightweight multi-layer complex structural parts, a digital twin system was developed by the integration of information technology with material, process and equipment. Then, the key technologies such as physical model of superplastic forming production unit, digital twin modeling based on process flow, multi-source heterogeneous data collection and storage based on edge gateways, process database and data visualization were studied. Furthermore, the experimental verification was carried out on the independently developed 8000 kN superplastic forming/diffusion joining equipment, and the entire process of TC4 titanium alloy hemispherical forming was completed, achieving visual monitoring and control of the superplastic forming equipment and process, which provided ways and methods to realize the digitization, automation and intelligence of superplastic forming process.

基金项目：

中国机械总院技术发展基金 (912202Q9);燃烧、热结构与内流场重点实验室基金(SY41YYF202209054)

李运硕（1997-），男，硕士 E-mail：lys813914@163.com

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