Chatter Stability Domain Analysis and Milling Verification for a Mobile Hybrid Robot in Aerospace Components Machining

doi:10.3901/JME.260013

Abstract

Abstract: The aerospace aluminum alloy components have the characteristics of large size and small features, posing equipment requirements for large working ranges and high dynamic machining capabilities. The extreme optimization method is proposed to analyze the cutting stability lobe diagram and verify the machining ability of a cylindrical coordinate mobile hybrid robot, which has omnidirectional large-range mobility and high-dynamics end-effector capabilities. First, the chatter stability domain analysis is conducted to identify the weakest machining capacity posture across the robot’s full workspace. Then the accuracy of the analysis results is validated by multi-directional machining tests. To conduct the prototype component machining test, the experimental tools are selected according to characteristic dimensions of typical aerospace components, followed by determination of the maximum machining capacity at the identified weakest posture and typical feature machining paths for aerospace components. Finally, a comprehensive 1:1 prototype component machining test is conducted, demonstrating the hybrid robot’s technical feasibility and advanced performance in milling aerospace aluminum alloy components.

Key words: mobile hybrid robot, aerospace components, high dynamic machining, stability lobe diagram, milling verification

CLC Number:

TP242

LIU Zheng, ZHANG Ze, ZHANG Jiajun, XIE Fugui, LIU Xinjun. Chatter Stability Domain Analysis and Milling Verification for a Mobile Hybrid Robot in Aerospace Components Machining[J]. Journal of Mechanical Engineering, 2026, 62(1): 195-203.

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