Results 11 to 20 of about 918,916 (305)

Correlation of attracting sets of tool deformations with spatial orientation of tool elasticity and regeneration of cutting forces in turning [PDF]

open access: yesИзвестия высших учебных заведений: Прикладная нелинейная динамика, 2022
Nowadays, the dynamic cutting system is represented in the form of two subsystems — tool and workpiece, interacting through a nonlinear relationship formed by the cutting process.
Zakovorotny, Vilor Lavrentevich   +1 more
doaj   +1 more source

Ways of improving the process of machining the flat surfaces of parts by milling

open access: yesТехнічна інженерія, 2020
On the basis of the analysis of increasingly stringent requirements for quality of machining of parts, the increase of reliability of their functioning, some questions concerning increase of productivity of machining of flat surfaces of parts at the ...
O.A. Gromovyy   +2 more
doaj   +1 more source

Accurate Modeling of Working Normal Rake Angles and Working Inclination Angles of Active Cutting Edges and Application in Cutting Force Prediction

open access: yesMicromachines, 2021
The normal rake angle is an important geometric parameter of a turning tool, and it directly affects the accuracy of the cutting force prediction. In this study, an accurate model of the working normal rake angle (WNRA) and working inclination angle (WIA)
Peng Li, Zhiyong Chang
doaj   +1 more source

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

Improving of the wear resistance of working parts agricultural machinery by the implementation of the effect of self-sharpening [PDF]

open access: yes, 2016
The failure of the cutting elements of farm machinery is due to the blunting of cutting edges (increase of their radius) till the limit values. The most effective method for increasing the wear resistance of farm machinery is the realization of self ...
Arifa, W.   +6 more
core   +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

Discrete element simulation of rock cutting [PDF]

open access: yesInternational Journal of Rock Mechanics and Mining Sciences, 2011
This paper presents numerical modelling of rock cutting processes. The model consists of a tool–rock system. The rock is modelled using the discrete element method, which is suitable to study problems of multiple material fracturing such as those involved in rock cutting. Both 2D and 3D models are considered in this work.
Rojek, Jerzy   +3 more
openaire   +2 more sources

Conservative Discontinuous Cut Finite Element Methods

open access: yes, 2021
31 pages, 6 ...
Larson, Mats G., Zahedi, Sara
openaire   +2 more sources

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

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