自动铺丝在线应力主动控制装置及控制方法
By using an automated fiber placement online stress control method, and utilizing full-width laser heating and temperature sensor detection, the laser output power and heating time are adjusted in real time, solving the problem of thermal stress deformation during the molding process of continuous fiber additive composite materials, and improving the dimensional stability and mechanical properties of the molded parts.
CN120792187BActive Publication Date: 2026-07-17SHANGHAI AIRCRAFT MFG
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI AIRCRAFT MFG
- Filing Date
- 2025-05-26
- Publication Date
- 2026-07-17
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Figure CN120792187B_ABST
Abstract
本发明涉及增材加工技术领域，具体公开了一种自动铺丝在线应力主动控制装置及控制方法，该控制方法包括：将丝材铺放成型，形成N层材料层；获取分层照射温度和分层受热时间；根据所述分层照射温度和所述分层受热时间，对所述N层材料层进行全幅面激光加热；依次重复将丝材铺放成型和对铺放后材料层的激光加热操作，直至产品加工完成，使N层材料层全幅面趋近于相同温度并整体共同在该温度下逐步冷却，有效缓解了自动铺放过程来回辊压和铺放机构的成型激光对丝材加热成型造成局部温度升降带来的激烈不平衡过程，造成较大残余应力和热变形的情况，铺放的每N层材料层的变形量大幅下降，叠放加工后，内部应力减小，成型产品整体的变形量降低。
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