Mult-Axis Machining and CNC Systems: Innovations and Advancements

A special issue of Machines (ISSN 2075-1702). This special issue belongs to the section "Advanced Manufacturing".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 1096

Special Issue Editors

School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an, China
Interests: curve fitting; motion control; servo control
Department of Mechanical Engineering, Tsinghua University, Beijing, China
Interests: geometrical error calibration of NC equipment and robotics; dynamics and control of NC equipment and robotics; precision non-circular grinding technology and equipment

Special Issue Information

Dear Colleagues,

Multi-axis machine tools are at the forefront of high-end equipment in the mechanical manufacturing industry. Beyond the widely recognized five-axis machines, the integration of multi-axis systems with advanced components such as galvanometers, electrochemical heads, and other micro-motion systems has significantly enhanced the flexibility and precision of modern manufacturing processes. This Special Issue seeks to provide a comprehensive platform for showcasing cutting-edge research and developments in new CNC architectures, innovative control methodologies, and advanced machine configurations for multi-axis machine tools and their control systems. Additionally, this Special Issue aims to address critical challenges in the field, including the enhancement of static accuracy through optimized structural design, the improvement of dynamic performance via novel servo control principles, and the increase in machining efficiency through advanced trajectory and motion planning techniques. By bringing together the latest advancements, this Special Issue aspires to contribute to the ongoing evolution of multi-axis machining and CNC systems, fostering innovation and excellence in the manufacturing industry.

Dr. Zheng Sun
Dr. Dong Wang
Guest Editors

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Keywords

  • tool path generation
  • curve fitting
  • motion control
  • singularity avoidance
  • redundant axis
  • linkage processing
  • servo control
  • motor drive
  • integrated multi-axis structure

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Published Papers (1 paper)

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Research

20 pages, 3539 KB  
Article
Feedrate Profile Shaping-Based Five-Axis CNC Feedrate Planning Method Under Machine Axis Constraints
by Shaofeng Zhang, Qiang Ma, Liping Wang, Hongli Yang, Yuanshenglong Li, Dong Wang, Jingjing Cao, Jinfan Li, Yongqi Wang and Weiwei He
Machines 2026, 14(2), 181; https://doi.org/10.3390/machines14020181 - 4 Feb 2026
Viewed by 514
Abstract
Feedrate planning is a critical process in computer numerical control (CNC) machining, playing a key role in ensuring machining quality and improving efficiency. This paper proposes a feedrate planning method based on feedrate profile shaping to satisfy machine axis constraints, including axis velocity, [...] Read more.
Feedrate planning is a critical process in computer numerical control (CNC) machining, playing a key role in ensuring machining quality and improving efficiency. This paper proposes a feedrate planning method based on feedrate profile shaping to satisfy machine axis constraints, including axis velocity, acceleration, and jerk limits. First, the five-axis machining path is represented using parametric curves. By combining the geometric characteristics of the path with machine axis velocity constraints, the upper bound of the feedrate under static constraints is derived. On this basis, machine axis acceleration and jerk constraints are further incorporated to establish feedrate planning criteria, thereby obtaining a distribution of feasible points that satisfies dynamic constraints. Then, a feedrate curve is generated using a profile shaping strategy based on the feasible point distribution, and further optimized through a corner shaping method. As a result, the planned feedrate strictly satisfies machine axis constraints along the entire tool path while ensuring continuity and smoothness of the feedrate profile. Finally, the effectiveness and reliability of the proposed method are validated through simulations of the parametric curve and experimental machining of an impeller blade. Full article
(This article belongs to the Special Issue Mult-Axis Machining and CNC Systems: Innovations and Advancements)
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