• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2026, Vol. 62 ›› Issue (13): 349-362.doi: 10.3901/JME.260398

Previous Articles     Next Articles

Current Research and Equipment Evolution in Mirror Milling for Large Thin-walled Components

XU Chenhao1,2, XIE Fugui1,2, XIE Zenghui1,2, LIU Xinjun1,2   

  1. 1. Department of Mechanical Engineering, Tsinghua University, Beijing 100084;
    2. Beijing Key Laboratory of Transformative High-end Manufacturing Equipment and Technology, Tsinghua University, Beijing 100084
  • Received:2025-07-03 Revised:2026-01-20 Published:2026-08-28

Abstract: With escalating demands for machining precision and efficiency of large thin-walled aerospace components, mirror milling achieves breakthroughs in process system rigidity and adaptability through its “simultaneous milling-supporting, thickness preservation and vibration suppression” methodology, retaining the advantages of the low mechanical stress in chemical milling and program controllability in CNC single-machine milling. Its key technologies include: (1) mirror synchronization accuracy assurance technology, enhancing absolute pose accuracy through kinematic modelling and error compensation, coupled with mirror toolpath optimization and coordinated motion control to ensure dynamic tracking accuracy; (2) conformal support and thickness assurance technology, enabling adaptive conformity to part contours and precise thickness regulation via support structure design, force/position control and thickness compensation; (3) mirror machining chatter suppression technology, mitigating chatter risks by integrating machining dynamics modelling with passive vibration suppression (offline optimization of stiffness/damping) and active vibration suppression (dynamic adjustment of stiffness/damping) strategies. Configuration innovation emerges as the pivotal pathway for system enhancement and application advancement, promising to overcome quality/efficiency bottlenecks in machining aircraft skins and rocket tank domes. Furthermore, mirror milling’s continuous evolution promises broad prospects, with its large-scale application in thin-walled component manufacturing proving vital to national aerospace high-end manufacturing development.

Key words: mirror milling, synchronous control, flexible support, chatter suppression, configuration innovation

CLC Number: