基于智能传感系统的热管理部件应力变形监测及调控方法

By using an intelligent sensing system in laser powder bed fusion additive manufacturing, the stress deformation of thermal management components can be monitored and controlled in real time, solving the problem of high-temperature near-field and internal stress monitoring and control that is difficult to achieve in existing technologies, thus improving forming quality and service performance.

CN120961949BActive Publication Date: 2026-07-17JIANGSU JIAHE THERMAL SYST RADIATOR

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JIANGSU JIAHE THERMAL SYST RADIATOR
Filing Date
2025-08-28
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies make it difficult to monitor and control the high-temperature near-field and internal stress of complex thermal management components in real time, in situ, and at high resolution during laser powder bed fusion additive manufacturing, leading to structural failure problems such as microcracks and warping.

Method used

A method based on an intelligent sensing system is adopted. By laying a consumable diamond thin film acoustic waveguide layer on the surface of the molded substrate, embedding a sensing unit to synchronously collect acoustic emission signals and thermoelastic wave signals, and combining a neural network model and offline detection equipment, the stress distribution is calculated in real time, and the stress concentration area is controlled by ring laser and ultrasonic waves.

Benefits of technology

It enables in-situ stress monitoring and control of the near-molten pool region of thermal management components under extreme high-temperature conditions, improving the forming qualification rate and service reliability, and solving the problem of targeted intervention of internal stress deformation in complex structures.

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Abstract

本发明公开了基于智能传感系统的热管理部件应力变形监测及调控方法,本发明涉及激光粉末床熔融增材制造技术领域,包括以下步骤:S1:在成型基板表面铺设声波导层,该声波导层在打印过程中逐层被金属粉末覆盖。该基于智能传感系统的热管理部件应力变形监测及调控方法,通过金刚石薄膜声波导层与双模信号同步采集机制,实现在激光粉末床熔融极端高温环境下对热管理部件近熔池区域的应力状态原位监测。该设计利用金刚石材料的极端耐热性与声学特性,突破传统传感器无法承受熔池热冲击的局限;结合声发射信号与主动激发热弹波的异构数据融合,在制造过程中获取封闭流道等内部结构的全维度应力场分布,为应力调控提供精确输入。
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