Results 21 to 30 of about 5,795,971 (345)
FabR regulates Salmonella biofilm formation via its direct target FabB [PDF]
Background: Biofilm formation is an important survival strategy of Salmonella in all environments. By mutant screening, we showed a knock-out mutant of fabR, encoding a repressor of unsaturated fatty acid biosynthesis (UFA), to have impaired biofilm ...
De Coster, David +8 more
core +4 more sources
Chip Formation Mechanism Using Finite Element Simulation [PDF]
Prediction of chip form produced during machining process is an important work when considering workpiece surface creation and possible damage caused by chips generated during machining. The paper presents a set of new results of cutting chip formation from the latest FEM model development.
Chen, Xun, Öpöz, Tahsin Tecelli
openaire +2 more sources
The Chip Formation Process When Cutting High-Speed Steels and Ti3SiC2 Ceramics
The paper presents the microstructural characterization of the chip roots in high-speed steels and ceramic Ti3SiC2. The process of chip formation and the obtaining of adequate samples were carried out using the quick-stop method.
Borislav Savkovic +3 more
doaj +1 more source
Toward a better understanding of tool wear effect through a comparison between experiments and SPH numerical modelling of machining hard materials [PDF]
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
Optimization the processing of thin-walled polyamide parts [PDF]
The «Grebenka» is part of the receiving and computing module of the global satellite system devices and is used to position wires in the socket. When developing the manufacturing technology for this part, problems arose due to the properties of the ...
Anisimova K. G. +2 more
doaj +1 more source
Comprehension of chip formation in laser assisted machining [PDF]
Laser Assisted Machining (LAM) improves the machinability of materials by locally heating the workpiece just prior to cutting. Experimental investigations have confirmed that the cutting force can be decreased, by as much as 40%, for various materials ...
DAL SANTO, Philippe +2 more
core +3 more sources
In today’s unmanned productions systems, it is very important that the manufacturing processes are carried out efficiently and smoothly. Therefore, controlling chip formation becomes an essential issue to be dealt with.
Katarina Monkova +5 more
doaj +1 more source
Cold molecular ions on a chip [PDF]
We report the sympathetic cooling and Coulomb crystallization of molecular ions above the surface of an ion-trap chip. N$_2^+$ and CaH$^+$ ions were confined in a surface-electrode radiofrequency ion trap and cooled by the interaction with laser-cooled ...
Mokhberi, A., Willitsch, S.
core +2 more sources
The influence of laser assistance on the machinability of the titanium alloy Ti555-3 [PDF]
The Ti533-3 alloy is a new titanium alloy which is starting to see increased use in the aeronautical domain to improve the durability of components and to optimize the weight/resistance ratio. This alloy is characterized by greater resistance compared to
BRAHAM-BOUCHNAK, Tarek +3 more
core +5 more sources
Chip evacuation is a critical issue in metal cutting, especially continuous chips that are generated during the machining of ductile materials. The improper evacuation of these kinds of chips can cause scratching of the machined surface of the workpiece ...
Itxaso Cascón +2 more
doaj +1 more source

