Results 51 to 60 of about 33,938 (298)
К вопросу о механизме износа лезвий [PDF]
, 2011 В статье выполнено геометрическое моделирование износа лезвий по задней поверхности. Получена математическая зависимость износа от геометрии лезвия в статике. Вскрыт механизм формирования поверхности износа.
Shvets, Stanislav Volodymyrovych +3 more
core
Influence of cutting parameters and tool wear on the surface integrity of cobalt-based Stellite 6 alloy when machined under a dry cutting environment [PDF]
, 2016 The efficiency of a machining process can be measured by evaluating the quality of the machined surface and the tool wear rate. The research reported herein is mainly focused on the effect of cutting parameters and tool wear on the machined surface ...
Alexander Galloway +19 more
core +1 more source
Advanced Science, EarlyView.This research deciphers the m6A transcriptome by profiling its sites and functional readout effects: from mRNA stability, translation to alternative splicing, across five different cell types. Machine learning model identifies novel m6A‐binding proteins DDX6 and FXR2 and novel m6A reader proteins FUBP3 and L1TD1.
Zhou Huang +11 more
wiley +1 more source
Investigation on tool wear and tool life prediction in micro-milling of Ti-6Al-4V
Nanotechnology and Precision Engineering, 2018 Short tool life and rapid tool wear in micromachining of hard-to-machine materials remain a barrier to the process being economically viable. In this study, standard procedures and conditions set by the ISO for tool life testing in milling were used to ...
Amin Dadgari, Dehong Huo, David Swailes
doaj +1 more source
Advances in Mechanical Engineering, 2021 Tuning the parameters of Computerized Numerical Control (CNC) is essential for practical manufacturers. Well configured parameters ensure the efficiency of production and the accuracy of the products.
Fei Li, Jun Liu
doaj +1 more source
Two Novel S‐methyltransferases Confer Dimethylsulfide Production in Actinomycetota
Advanced Science, EarlyView.This study identifies two novel S‐adenosine‐methionine‐dependent methyltransferases, MddM1 and MddM2, in actinomycetes from the Mariana Trench. These enzymes can convert toxic hydrogen sulfide (H2S) and methanethiol (MeSH) into dimethylsulfide (DMS), serving as a cellular detoxification and oxidative stress response.
Ruihong Guo +11 more
wiley +1 more source
Experimental Study on Wear Characteristics of PCBN Tool with Variable Chamfered Edge
Chinese Journal of Mechanical Engineering, 2019 Owing to heavy dynamic and thermal loads, PCBN tools are seriously worn during hard cutting, which largely constrains the improvement of their machining performance.
Tao Chen +3 more
doaj +1 more source
Ultrasonic treatment with nickel electroplating combined with oxidation for developing γ-Al2O3 washcoat on Fe-Cr-Al substrate [PDF]
, 2012 Fe-Cr-Al is used as metallic support for catalytic converter due to its high thermal conductivity, lower heat capacity, high temperature and mechanical shock resistance. γ-Al2O3 is the most widely used material as washcoat which embedded on metallic
Firdianto, Ade
core
A Supramolecular Ferroelectric With Two Sublattices and Polarization Dependent Conductivity
Advanced Science, EarlyView.Ferroelectric behavior in a supramolecular material with two, independently switchable, sublattices is demonstrated. The sublattices can be associated with the two dipolar groups in the compound. Moreover, the polarization is found to couple to the charge transport in the material, giving rise to a switchable, directional conductivity.
H. Mager +6 more
wiley +1 more source
Cutting Performance and Wear/Damage Characteristics of PCBN Tool in Hard Milling
Applied Sciences, 2019 In the intermittent machining of hardened steel for the die and mold industry, determining how to reduce the wear of PCBN (Polycrystalline Cubic Boron Nitride) tools and improve their machining efficiency and quality is an important subject.
Haining Gao, Xianli Liu, Zhitao Chen
doaj +1 more source