Results 41 to 50 of about 385,035 (296)

The influence of cutting edge microgeometry on the broaching of Inconel 718 slots

open access: yesEngineering Science and Technology, an International Journal, 2023
In aero-engine production, the dovetails (firtrees) of turbine discs are manufactured by broaching. Introducing innovative micro-geometry modifications to broaching tools can significantly influence cutting force, energy consumption, tool wear, and ...
Cristian Fabián Pérez-Salinas   +4 more
doaj   +1 more source

Future and development direction (21-35) of M&S for building up to the hyper-army in Republic of Korea Army

open access: yes선진국방연구, 2021
This study presents the direction of modeling and simulation (M&S) development, which is essential for high-tech armed forces, focusing on the Vision 2030 in Republic of Korea Army.
Kyoungchan Won   +5 more
doaj   +3 more sources

Effects of sandwiched film thickness and cutting tool water contact angle on the processing outcomes in nanoskiving of nanowires

open access: yesMaterials & Design, 2023
To calculate the shear yield stress and effect of the gold film thickness on sandwich structures, a force transducer was used to measure cutting forces during nanoskiving, and an orthogonal cutting model, which considered liquid parameters, was used for ...
Zhe Dong   +4 more
doaj   +1 more source

The influence of design and kinematic parameters of the knife on the specific cutting force of the sorghum-sudan hybrid [PDF]

open access: yesE3S Web of Conferences
The paper presents results of the study on defining the specific cutting force of Nutritop Star sorghum-Sudan hybrid when changing kinematic and design parameters of the knife grinding device, such as: speed, sliding angle, sharpening angle, thickness ...
Ayugin N. P.   +4 more
doaj   +1 more source

Determining the Parameters of Leveler-Ripper Shanks

open access: yesСельскохозяйственные машины и технологии, 2019
In order to ensure high-quality sowing and smooth seed germination, the main task in pre-sowing soil preparation is fi eld surface leveling, soil compaction to the required degree and the formation of a mildly mulching layer on the soil surface.
Kh. G. Abdulkhaev, M. M. Khalilov
doaj   +1 more source

Research on Chip Shear Angle and Built-Up Edge of Slow-Rate Machining EN C45 and EN 16MnCr5 Steels

open access: yesMetals, 2019
One of the phenomena that accompanies metal cutting is extensive plastic deformation and fracture. The excess material is plastically deformed, fractured, and removed from the workpiece in the form of chips, the formation of which depends on the type of ...
Katarina Monkova   +6 more
doaj   +1 more source

The roles of Eu during the growth of eutectic Si in Al-Si alloys [PDF]

open access: yes, 2015
Controlling the growth of eutectic Si and thereby modifying the eutectic Si from flake-like to fibrous is a key factor in improving the properties of Al-Si alloys.
Hage, Fredrik   +7 more
core   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Influence of the preparation processes on the residual stresses in PCD and PcBN tools

open access: yesEuropean Journal of Materials
Ultra-hard cutting materials such as polycrystalline diamond (PCD) and cubic boron nitride (PcBN) are increasingly being used as cutting tools in machining.
Bernd Breidenstein   +2 more
doaj   +1 more source

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