Results 41 to 50 of about 940,967 (310)

Toward a better understanding of tool wear effect through a comparison between experiments and SPH numerical modelling of machining hard materials [PDF]

open access: yes, 2009
The aim of this study is to improve the general understanding of tungsten carbide (WC–Co) tool wear under dry machining of the hard-to-cut titanium alloy Ti6Al4V. The chosen approach includes experimental and numerical tests.
Bil   +26 more
core   +7 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Tool Life of PM-HSS Cutting Tools when Milling of Titanium Alloy [PDF]

open access: yes, 2017
Machining of titanium alloys meets with poor life of a cutting tool. It is caused by a low thermal conductivity and by a high strength-to-weight ratio of the alloys. Various approaches for cost-effective and productive machining titanium alloys are still
Bach P., Trmal G., Zeman P.
core  

Design of Lightweight Cutting Tools

open access: yesInternational Journal of Automation Technology, 2020
Taking into account the growing demand for sophisticated cutting tools in terms of their performance, new approaches, besides the development of the tool’s cutting edge, have to be investigated and validated by physical tests. In this study, methods of topology optimization and hybrid design are adopted for cutting tools.
Andreas Häusler   +3 more
openaire   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

A performance of 2 dimensional ultrasonic vibration assisted milling in cutting force reduction, on aluminium AL6061 [PDF]

open access: yes, 2016
This paper were investigate a performance of 2 Dimensional Ultrasonic Vibration assisted Milling (UVAM) toward Aluminium Al 6061. The focus is to find the performance of reduction of cutting force compared to the conventional machining in the industries ...
Abd. Rahim, Erween   +4 more
core  

Micro milling performance assessment of diamond-like carbon coatings on a micro-end mill [PDF]

open access: yes, 2013
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2013 Institution of Mechanical Engineers.In micro milling, unpredictable tool life and premature tool failures are the major constraints ...
Cheng, K, Wu, T
core   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Influence of deposition pressure on structure and properties of AlCrSiN/Mo self-lubricating coating

open access: yesCailiao gongcheng
To solve the problem that the cutting temperature rises sharply due to the high friction coefficient of AlCrSiN coated tools during dry cutting, which seriously shortens the service life of the tool, the tribological properties of the coating are ...
WANG Chongyang   +9 more
doaj   +1 more source

FEM STRUCTURAL ANALYSIS OF A LATHE TOOL BY USING CATIA [PDF]

open access: yesFiabilitate şi Durabilitate, 2018
With the aid of the finite element analysis method can be studied problems whose complexity is given by the complicated geometric configuration of the bodies, material inhomogeneities, anisotropy of the materials, composite materials, etc.
Alin NIOAŢĂ, Alin STĂNCIOIU
doaj  

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