Results 31 to 40 of about 10,592,375 (188)

Automatic planning for machine tool calibration: A case study [PDF]

, 2012
Machine tool owners require knowledge of their machine’s capabilities, and the emphasis increases with areas of high accuracy manufacturing. An aspect of a machine’s capability is its geometric accuracy. International Standards and best-practice guides
P. Gregory, Parkinson, Simon, Fletcher, Simon, S. Fletcher, Crampton, Andrew, Fletcher, S., A. Crampton, Longstaff, Andrew P., S. Parkinson, Gregory, Peter, A.P. Longstaff, Crampton, A.; id_orcid, Longstaff, A. P.; id_orcid, Parkinson, S.   +13 more
core   +1 more source

Magnetically Guided Macrophage Immunobots Coordinate Iron‐Metabolic Cascades and Immunogenic Ferroptosis for Tumor Immunotherapy

Advanced Science, EarlyView.
Magnetically guided macrophage immunobots integrate active tumor targeting with immunometabolic therapy. After systemic administration, magnetic actuation enhances immunobot retention and tumor penetration, while LPS‐functionalized FePt microrollers sustain M1‐like polarization through inflammatory and iron‐amplified oxidative signaling and trigger ...
Xirui Zeng, Yingfei Zhang, Chong Wu, Qijia Duan, Mengqi Fan, Kuan Wang, Shirong Cai, Immihan Ceren Yasa   +7 more
wiley   +1 more source

Reliability Analysis of Aerospace Blade Manufacturing Equipment: A Multi-Source Uncertainty FMECA Method for Five-Axis CNC Machine Tool Spindle Systems

Machines
Five-axis Computerized Numerical Control (CNC) machine tools play a pivotal role in the precision manufacturing of aeroengine turbine blades, where ultra-high reliability and accuracy are essential.
Muhao Han, Yufei Li, Hailong Tian, Yuzhi Sun, Zixuan Ni, Yunshenghao Qiu, Haoyuan Li   +6 more
doaj   +1 more source

Study on the application of a granite composite material in five-axis CNC-VMC machine Tool

Journal of Physics: Conference Series, 2022
Abstract A five-axis CNC-VMC machine tool generally has a high-speed spindle spinning at a maximum rotation of 50,000 rpm, under which the machine tool bed will violently vibrate that leads to poor machining precision and surface quality of workpiece.
H C Chuang, C R Chen
openaire   +1 more source

Multiscale Freestanding Vertically Aligned CNT Heat Sink Enabling Multimodal Heat Dissipation by Conduction, Convection, and Radiation

Advanced Science, EarlyView.
This study demonstrates a vertically aligned CNT (VACNT)‐based heat sink. The nanoporous structure of the VACNT provides a large surface area for convective and radiative exchange, alongside axial conduction, enabling multimodal heat dissipation. Mounted on a CPU, the VACNT with a fin array pattern achieves a steady‐state temperature 6.7°C lower than a
Jongwon Park, Kwangjun Kim, Jimin Lee, Jong G. Ok   +3 more
wiley   +1 more source

A Multidimensional Performance Evaluation Method for Blade‑Specialized Five‑Axis Machining Centers

Nanjing Hangkong Hangtian Daxue Xuebao
Machining of aero‑engine blade‑type complex curved‑surface parts places stringent requirements for high accuracy， stability， and efficiency on five‑axis CNC machine tools. To assess the suitability of domestic five‑axis CNC equipment for this application，
LIN Zhiqiang, LU Chengbin, LI Jia, ZHANG Jiacheng, WU Qixun, ZHAO Guolong   +5 more
doaj   +1 more source

Fabrication of Edge Rounded Polylactic Acid Biomedical Stents by the Multi-Axis Micro-Milling Process

Applied Sciences, 2020
This paper presents the first try to fabricate degradable polylactic acid (PLA) biomedical stents with round edges by the multi-axis micro-milling process. Conventionally biomedical stents are produced by laser processing.
Fuh-Yu Chang, Yan-Chiau Chen, Te-Hsien Liang, Zong-Yan Cai   +3 more
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

Defining and Computing Machine Tool Accuracy [PDF]

, 2009
Understanding machine tool performance is important for specifying or comparing machines and for determining capability for production. Machine accuracy has generally been described by the linear positioning accuracy and repeatability of the axes.
Longstaff, Andrew P., Fletcher, Simon, Myers, Alan   +2 more
core   +5 more sources

Feedrate Profile Shaping-Based Five-Axis CNC Feedrate Planning Method Under Machine Axis Constraints

Machines
Feedrate planning is a critical process in computer numerical control (CNC) machining, playing a key role in ensuring machining quality and improving efficiency.
Shaofeng Zhang, Qiang Ma, Liping Wang, Hongli Yang, Yuanshenglong Li, Dong Wang, Jingjing Cao, Jinfan Li, Yongqi Wang, Weiwei He   +9 more
doaj   +1 more source