Results 51 to 60 of about 6,147,181 (407)

Research on Tool Wear Based on 3D FEM Simulation for Milling Process

Journal of Manufacturing and Materials Processing, 2020
In the process of metal cutting, the anti-wear performance of the tool determines the life of the tool and affects the surface quality of the workpiece. The finite element simulation method can directly show the tool wear state and morphology, but due to
Zhibo Liu, Caixu Yue, Xiaochen Li, Xianli Liu, Steven Y. Liang, Lihui Wang   +5 more
doaj   +1 more source

Study on Characteristics of Tool Wear and Breakage of Ultrasonic Cutting Nomex Honeycomb Core with the Disc Cutter

Applied Sciences, 2023
Ultrasonic cutting is an advanced technology for processing Nomex honeycomb materials. The disc cutter is one of the most commonly used tools, whose wear and breakage state have an important impact on the honeycomb material machining process.
Leilei Li, Yan Qin, Renke Kang, Zhigang Dong, Hongxia Song, Yidan Wang   +5 more
doaj   +1 more source

Digital Twin-Driven Tool Wear Monitoring and Predicting Method for the Turning Process

Symmetry, 2021
Accurate monitoring and prediction of tool wear conditions have an important influence on the cutting performance, thereby improving the machining precision of the workpiece and reducing the production cost.
K. Zhuang, Zhenchuan Shi, Yaobing Sun, Zhongmei Gao, Lei Wang   +4 more
semanticscholar   +1 more source

Reliability assessment of cutting tool life based on surrogate approximation methods [PDF]

, 2014
A novel reliability estimation approach to the cutting tools based on advanced approximation methods is proposed. Methods such as the stochastic response surface and surrogate modeling are tested, starting from a few sample points obtained through ...
Kolios, Athanasios, Salonitis, Konstantinos   +1 more
core   +1 more source

TEM observations of wear mechanisms of TiAlCrN and TiAlN/CrN coatings grown by combined steered-arc/unbalanced magnetron deposition [PDF]

, 1999
The dry sliding wear of monolayer TiAlCrN and TiAlCrYN and multilayer TiAlN/CrN coatings has been investigated against a BM2 tool steel counterface using a ring on block configuration at 91 N, 0.42 m/s.
Luo, Quanshun, Münz, W.D., Rainforth, W.M.   +2 more
core   +1 more source

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Analysis of Tool Wear in GH4169 Material Milling Process

Lubricants, 2023
Nickel-based superalloy GH4169 is a material with strong mechanical properties and is difficult to process. In order to reduce tool wear during material processing and improve the workpiece surface processing quality, based on the finite element ...
Xueguang Li, Wang Zhang, Liqin Miao, Zhaohuan Pang   +3 more
doaj   +1 more source

Modelling and simulation on the tool wear in nanometric cutting [PDF]

, 2003
Tool wear is a significant factor affecting the machined surface quality. In this paper, a Molecular Dynamics (MD) simulation approach is proposed to model the wear of the diamond tool in nanometric cutting. It includes the effects of the cutting heat on
Cheng, K, Holt, R, Luo, X
core  

Monitoring of circulating tumor DNA allows early detection of disease relapse in patients with operable breast cancer

Molecular Oncology, EarlyView.
Monitoring circulating tumor DNA (ctDNA) in patients with operable breast cancer can reveal disease relapse earlier than radiology in a subset of patients. The failure to detect ctDNA in some patients with recurrent disease suggests that ctDNA could serve as a supplement to other monitoring approaches.
Kristin Løge Aanestad, Marie Austdal, Oddmund Nordgård, Gunnar Mellgren, Satu Oltedal, Marie L. Austbø, Ylva H. Vignes, Thomas Helland, Kristin Jonsdottir, Tone H. Lende, Emilius A. M. Janssen, Bjørnar Gilje, Kjersti Tjensvoll, PBCB study group, Gunnar Mellgren, Tone Hoel Lende, Anette Heie, Kristin Viste, Anita Røyneberg Alvheim, Emiel AM Janssen, Kristin Jonsdottir, Ann Cathrine Kroksveen, Thomas Helland, Einar Gudlaugsson, Oddmund Nordgård, Satu Oltedal, Kristin Løge Aanestad, Jan Terje Kvaløy, Kirsten Lode, Kari Britt Hagen, Marie Austdal, Ylva H. Vignes, Siri Tungland Sola, Nina Egeland Amundsen, Finn Magnus Eliassen, Emeritus Ernst A Lien   +35 more
wiley   +1 more source

Generic Cutting Force Modeling with Comprehensively Considering Tool Edge Radius, Tool Flank Wear and Tool Runout in Micro-End Milling

Micromachines, 2022
Accurate cutting force prediction is crucial in improving machining precision and surface quality in the micro-milling process, in which tool wear and runout are essential factors.
Shuaishuai Gao, Xianyin Duan, Kunpeng Zhu, Yu Zhang   +3 more
doaj   +1 more source