Results 21 to 30 of about 8,884 (244)

Research advances in coupling bionic optimization design method for CNC machine tools based on ergonomics

Journal of Hebei University of Science and Technology, 2015
Currently, most Chinese CNC machine tools' dynamic and static performances have large gap comparing with the similar foreign products, and the CNC machine tools users' human-centered design demand are ignored, which results in that the domestic CNC ...
Shihao LIU, Yanbin DU, Zhizhong GUO
doaj   +1 more source

Classification of drilling surface roughness on computer numerical control (CNC) machine tools based on Mobilenet_v3_small_improved [PDF]

Mechanical Sciences
Computer numerical control (CNC) machine tool drilling is a crucial process in the contemporary manufacturing sector, facilitating high-precision fabrication of complex components and thus enhancing production efficiency and product quality.
G. Chen, W. Peng, J. Tu, W. Wang, H. Zhao   +4 more
doaj   +1 more source

Optimal Design of Three-Stress Accelerated Degradation Test Plan for Motorized Spindle with Poor Prior Information

Metals, 2022
Accurate optimal design for the test plan with limited prior information is impossible since the optimal design method of a three-stress accelerated degradation test plan for a motorized spindle is based on the determination of model parameters. In order
Hongxun Zhao, Zhaojun Yang, Chuanhai Chen, Zhifeng Liu, Wei Luo, Chunlei Hua   +5 more
doaj   +1 more source

EFFECTIVENESS OF CNC TURNING AND CNC MILLING IN MACHINING PROCESS

International Journal of Economic, Technology and Social Sciences (Injects), 2021
Technological developments and advances in the digital era are currently growing rapidly along with the times, so that they have an impact in all sectors including the manufacturing industry sector. Competition in the manufacturing industry is getting higher, both in the field of supporting equipment technology and in the production sector.
Rahmatullah Rahmatullah, Arfis Amiruddin, Sudirman Lubis   +2 more
openaire   +1 more source

PHM Services Based on Cyber–Physical Machine Tool System

Sensors
Heterogeneous fault information and a lack of real-time synchronization in CNC machine tools hinder effective Prognostics and Health Management (PHM). This paper designs and implements a digital twin-driven PHM framework for machine tools that integrates
Chuting Wang, Ruijuan Xue, Xuesong Mei, Zuguang Huang   +3 more
doaj   +1 more source

An Improved Triangulation Oversampling Method for Processing Unbalanced Data

IEEE Access
In classification tasks, the algorithms heavily depend on big data, yet data category imbalance hinders the model’s ability to adequately learn from scarce class samples, impacting its overall learning capacity.
Jingjing Liu, Yefeng Liu, Yanwei Ma, Qichun Zhang   +3 more
doaj   +1 more source

Analysis of the Possibility of Introducing the Reduction of Changeover Time of Selected CNC Machines Using the SMED Method

Production Engineering Archives, 2023
The paper presents the results of improving the production process using the SMED method. The process improvement was carried out in a company in the construction industry, using a machine park consisting of CNC machines.
Oleksiak Beata, Ciecińska Barbara, Ołów Piotr, Hordyńska Małgorzata   +3 more
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RIPK3 dampens mitochondrial bioenergetics and lipid droplet dynamics in metabolic liver disease

Hepatology, EarlyView., 2022
RIPK3 dampens mitochondrial bioenergetics and lipid droplet dynamics in metabolic liver disease. Abstract Background and Aims Receptor‐interacting protein kinase 3 (RIPK3) mediates NAFLD progression, but its metabolic function is unclear. Here, we aimed to investigate the role of RIPK3 in modulating mitochondria function, coupled with lipid droplet (LD)
Marta B. Afonso, Tawhidul Islam, Julie Magusto, Ricardo Amorim, Véronique Lenoir, Rui F. Simões, José Teixeira, Liana C. Silva, Dominique Wendum, Isabelle Jéru, Corinne Vigouroux, Rui E. Castro, Paulo J. Oliveira, Carina Prip‐Buus, Vlad Ratziu, Jérémie Gautheron, Cecília M. P. Rodrigues   +16 more
wiley   +1 more source

Effect of pulse frequency on microstructure and properties of laser additive manufactured Inconel 718

Journal of Materials Research and Technology
Laser additive manufacturing of Inconel 718 nickel-based superalloy (In718) typically results in coarse columnar grains, which adversely affect its mechanical properties.
Yuanjun Su, Jingjie Zhang, Guangchun Xiao, Hui Chen, Mingdong Yi, Zhaoqiang Chen, Hui Zhang, Chonghai Xu   +7 more
doaj   +1 more source

Effect of dislocation slip on in-situ tensile fracture of vanadium alloys after helium/self-ion irradiation

Science and Technology of Advanced Materials
Research on tensile fracture of vanadium alloys after irradiation would help evaluate their mechanical properties and service life in extreme environments of fusion reactors, thereby ensuring the safety and reliability of the materials.
Qianqian Zhang, Shaoning Jiang, Yanfen Li, Shoushuai Zhang, Pengfei Zheng, Jianghai Lin, Guangchun Xiao   +6 more
doaj   +1 more source