Results 51 to 60 of about 5,076 (221)

Intelligent Recognition Method of Turning Tool Wear State Based on Information Fusion Technology and BP Neural Network

Shock and Vibration, 2021
The multi-information data acquisition system of tool wear condition of CNC lathe is built by acquiring the acoustic emission and vibration acceleration signals.
Yanwei Xu, Lin Gui, Tancheng Xie
doaj   +1 more source

Hierarchical Organization of Biomaterials in the Formation of Photonic Nanostructures

Advanced Science, EarlyView.
Natural organisms create vibrant structural colors through precisely organized nanostructures formed under mild biological conditions. This review explores how cellulose, chitin, corneous beta‐protein, and melanin form complex nanostructures across molecular, mesoscale, and tissue levels.
Sangyeop Kim, Jihun Kang, Seunghwan Moon, Liliana D'Alba, Matthew D. Shawkey, Jong‐Souk Yeo   +5 more
wiley   +1 more source

Robotical Automation in CNC Machine Tools: A Review

Acta Mechanica et Automatica
Abstract Robotics and automation have significantly transformed Computer Numerical Control (CNC) machining operations, enhancing productivity, precision, and efficiency. Robots are employed to load and unload raw materials, workpieces, and finished parts onto CNC machines.
Mohsen Soori, Fooad Karimi Ghaleh Jough, Roza Dastres, Behrooz Arezoo   +3 more
openaire   +2 more sources

Development of a Piezoelectric-Driven XYθ_z Nano-Positioning Stage with High Load-Bearing Capacity Enabled by Over-Constrained Guiding Configuration

Micromachines
A novel over-constrained XYθz nano-positioning stage with a high load-bearing capacity is proposed. This serially connected displacement stage adopts an embedded structural design that integrates a translation stage with a rotation stage in series. The Z-
Bin Liu, Lingchen Meng, Shuaishuai Lu, Fei Wang, Pengbo Liu, Peng Yan   +5 more
doaj   +1 more source

Analysis of dynamic characteristics of five-axis CNC machine tool

The Journal of Engineering, 2019
CNC machine tools play important role in industries. The dynamic characteristics of the machine tools are the main factor which affected the status of a machine tools.
Sicheng Wang, Hongjun Wang, Qiushi Han, Yangjie Gao, Lun Ge   +4 more
doaj   +1 more source

Ionomer‐Free Iridium Anodes With Low Loading for Zero‐Gap Electrolyzers via Direct Atomic Layer Deposition

Advanced Energy Materials, EarlyView.
Iridium‐based anode catalyst layers for proton exchange membrane water electrolysis were fabricated via atomic layer deposition (ALD). Using custom‐made microporous substrates and thermal ALD, current densities of up to 2.5 A·cm−2${\rm A}\cdot{\rm cm}^{-2}$ at 0.21 mg·cm−2$\text{mg}\cdot {\text{cm}}^{-2}$ Ir loading were achieved.
Peter M. Piechulla, Iris Blommestein, Anne van Gerven, Henri Pelzer, Ezgi Demiröz, Jonas Englhard, Mingliang Chen, Julien Bachmann, J. Ruud van Ommen   +8 more
wiley   +1 more source

Thermal behaviour in CNC machine-tools

Design of Machines and Structures, 2020
This article describes errors in machine-tools focusing on thermal errors. The internal and external heat sources in machine tools. The basic concepts of heat transfer and an introduction to Finite Element Method FEM applied to heat transfer.
Sebastian Cabezas, Attila Szilágyi
openaire   +2 more sources

Application of Machine Tool Thermal Error Compensation in Digital Twin-based System

Journal of Harbin University of Science and Technology
Thermal error significantly affects machining accuracy, demanding careful control. A robust system integrating a highly accurate thermal error model is the key to this control. This can be achieved through deep learning-based models.
MA Chi, LI Minging, LIU Jialan, HE Jialong, HUA Chunlei, WANG Liang   +5 more
doaj   +1 more source

Versatile Standing Wave Generation Between Arbitrarily Oriented Surfaces Using Acoustic Metasurface Deflectors and Retroreflectors

Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.
A novel method for generating versatile standing wave fields using an acoustic metasurface deflector and retroreflector is introduced. By overcoming traditional constraints of parallel surfaces, the approach enables customizable wave patterns and enhances applications in particle manipulation.
Chadi Ellouzi, Farhood Aghdasi, Ali Zabihi, Amir K. Miri, Chen Shen   +4 more
wiley   +1 more source

Risk Analysis of Coupling Fault Propagation Based on Meta-Action for Computerized Numerical Control (CNC) Machine Tool

Complexity, 2019
A comprehensive fault analysis of CNC machine tool is conducive to improving its reliability. Due to the highly complex structure of CNC machine tool, there are different degrees of coupling relationship between faults.
Yifan Chen, Genbao Zhang, Yan Ran
doaj   +1 more source