A state-of-the-art review on robotic milling of complex parts with high efficiency and precision

•The challenges faced by milling robots in machining operations are systematically reviewed.•The performance indexes commonly used to evaluate machining systems are highlighted.•The differences between regenerative and modal coupling chatter are compared.•Robotic processing stability is analyzed from two aspects of posture and cutting condition optimization.•Future trends of milling robots and problems to be solved are prospected.