Results 21 to 30 of about 121,508 (306)

3D Continuum Modelling of PDC Cutting of Rock with a Simple Contact-Erosion Scheme

open access: yesApplied Sciences, 2023
This paper presents a relatively simple numerical approach to predict the cutting force during PDC (polycrystalline diamond contact) cutting of rock. The rock failure model is based on a damage-viscoplasticity model, with the Drucker–Prager yield surface
Timo Saksala
doaj   +1 more source

Використання двокамерного пневматичного модуля для прорізування контурів у картонних розгортках

open access: yesТехнологія і техніка друкарства, 2021
The scientific work is devoted to the research of a new device for die-cutting contours in cardboard scans. The aim is to create a method and device for frost-free contouring in cardboard. Introduce the technology of contactless die-cutting.
Андрій Іванович Іванко   +1 more
doaj   +1 more source

Justification of parameters artificial soil for laboratory research of cutting edge wear

open access: yesСельскохозяйственные машины и технологии, 2017
For soil cultivation with the cutting tools of agricultural machines we can allocate three main types of shavings: shift, separation and continuous chip.
I. V. Liskin   +2 more
doaj   +1 more source

Reliability assessment of cutting tools life based on advanced approximation methods [PDF]

open access: yes, 2013
Cutting tools' reliability influences the whole manufacturing efficiency. However, in most cases the same cutting tool may be used for different operations with different processing parameters, making thus difficult to estimate the remaining life of the ...
Salonitis, Konstantinos   +2 more
core   +1 more source

Simulation of the deflected cutting tool trajectory in complex surface milling [PDF]

open access: yes, 2011
Since industry is rapidly developing, either locally or globally, manufacturers witness harder challenges due to the growing competitivity. This urges them to better consider the four factors linked to production and output: quality, quantity, cost and
Baili, Maher   +9 more
core   +1 more source

Cut finite elements for convection in fractured domains [PDF]

open access: yesComputers & Fluids, 2019
We develop a cut finite element method (CutFEM) for the convection problem in a so called fractured domain which is a union of manifolds of different dimensions such that a $d$ dimensional component always resides on the boundary of a $d+1$ dimensional component. This type of domain can for instance be used to model porous media with embedded fractures
Erik Burman   +3 more
openaire   +3 more sources

3D characterisation of tool wear whilst diamond turning silicon [PDF]

open access: yes, 2006
Nanometrically smooth infrared silicon optics can be manufactured by the diamond turning process. Due to its relatively low density, silicon is an ideal optical material for weight sensitive infrared (IR) applications. However, rapid diamond tool edge
Luo, X.   +5 more
core   +1 more source

Integrisan proces proizvodnje abrazivnih reznih elemenata bagera u rudarskoj industriji [PDF]

open access: yes, 2018
The paper presents an integrated production process for excavator cutting elements in the mining industry based on modern software systems for the optimization and management of casting process parameters through simulations.
Slavković, Radomir   +5 more
core   +1 more source

INFLUENCE OF EDM WORN SURFACE OF THE WORKING PART OF STEEL BORON TOOTH TO RESTORE ITS CUTTING ABILITY

open access: yesНаука и техника, 2017
The article is devoted to the experimental evaluation of the efficacy of electrical discharge machining (modification) worn cylindrical working surface of the steel of boron in order to restore its cutting ability.
M. G. KiselevG.   +3 more
doaj   +1 more source

Cutting Forces Prediction in Ball End Milling [PDF]

open access: yesEngineering and Technology Journal, 2011
In curved surface machining, parametric surface representation is normally used for computer aided design (CAD). Parametric surfaces are often machined using a flat end mill for roughing and ball end mill for finishing.
Hussain S. Kitan   +2 more
doaj   +1 more source

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