Results 111 to 120 of about 7,698 (219)

Effect Of The Different Loads Onto The Friction And Stick-Slip Of Polyamide Composites [PDF]

open access: yes, 2015
Our present work is connected to a research project, which is based on PA6, POM, PET and PEEK polymer matrix and aimed at making a map of the features of tribology.
Szakál, Zoltán, Zsidai, László
core  

Improvement of structure and quality of nanoscale multilayered composite coatings, deposited by filtered cathodic vacuum arc deposition method [PDF]

open access: yes
This article studies the specific features of cathode vacuum arc deposition of coatings used in the production of cutting tools. The detailed analysis of the major drawbacks of arc-Physical Vapour Deposition (PVD) methods has contributed to the ...
Aksenenko, AY   +5 more
core   +1 more source

Influence of a New Tap Drill Geometry on C45 (1.0503) Steel Processing

open access: yesTehnicki vjesnik - Technical Gazette, 2019
The article presents the research of a cutting tap that has a geometry that extends the cutting tool's life by reducing chipping when the tap reverses while still engaged in cutting a thread. It relates to the improvement of a spiral tap which discharges chips toward a shank via a helical flute. The article contains details about the tap geometries and
Faur, Adrian Sorin   +3 more
openaire   +3 more sources

Affiliating versus Subcontracting: the Case of Multinationals [PDF]

open access: yes
An aspect of globalization that has attracted increased attention in recent years is intra-firm trade. Actually, an intra-firm trading relationship indicates that an affiliate is present in the partner country. Hence, distinguishing intra- and extra-firm
P. SILLARD, S. RASPILLER
core  

Friction of PA6 and peek composites in the light of their surface characteristics [PDF]

open access: yes, 2014
Our present work is connected to a broad tribology research project with different polymer composites on PA6, POM, PET and PEEK matrix and targeted to create a detailed map of tribological features.
Szakál, Zoltán, Zsidai, László
core  

Analysis on Finite Element Simulation for Effect of Roll Diameter Ratio on Rolled Strip Flatness

open access: yesTeshugang, 2007
Two dimensional models of rolling process of two-stand Steckel mill at Kunming Iron and Steel has been established using heavy reduction elastic-plastic finite element method (FEM) by finite element software MSC. Marc to simu> late the flatness of 2 mm x
赵宝禄   +6 more
doaj  

The analysis of the influence of varying types of shape grooves on the behavior of internal material discontinuities during rolling

open access: yesMetalurgija, 2013
The article discusses problems related to the influence of rolling processes on the process of closing of internal discontinuities in continuous castings during rolling in two types of shape grooves.
M. Knapiński   +3 more
doaj  

Influence of Different Material Models on the Result of Numerical High Speed Cutting Simulations [PDF]

open access: yes, 2004
Extreme conditions for the workpiece and the tool can occur in high speed cutting processes. Temperatures above 1000 °C at very high strains over 3 and strain rates near 105 1/s are not unusual.
Halle, T., Meyer, L. W.
core  

A Precise Determination of Electroweak Parameters in Neutrino-Nucleon Scattering

open access: yes, 2002
The NuTeV collaboration has extracted sin^2theta_W from the ratios of neutral current to charged current neutrino and anti-neutrino cross-sections. Our value, sin^2theta_W(on-shell)=0.2277+/-0.0013(stat)+/-0.0009(syst), is three standard deviations above
Adams, T.   +45 more
core   +1 more source

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