Results 11 to 20 of about 998,789 (338)
Design of a computer-manufacturing tool - Rack-shaped cutter
MM Science Journal, 2021 In this work, the calculation of Maag gear shaper cutter parameters is performed for spur gears with helical teeth in three variants – straight-tooth tool with machine offset, helical-tooth tool without machine offset and helical-tooth tool with machine offset.
Mrkvica, Ivan +5 more
openaire +4 more sources
Profiling of a shaped worm cutter for shaping gears with non-involute tooth profile
Вісник Національного технічного університету «ХПІ». Серія: Динамiка та мiцнiсть машин, 2021 Of the mechanical transmissions used in mechanical engineering, the most common are gears with an involute profile of the teeth flanks. Gears made up of such wheels have a number of advantages, but they also have a number of significant disadvantages. Therefore jne of the current trends is the study of gears with a complex non-involute profile of the ...
Tatiana Tretyak +2 more
semanticscholar +5 more sources
Evaluation of Non-Planar Tool Interaction in Milling of Shaped Surfaces Using a Copy Milling Cutter
Applied Sciences, 2023 When milling complex parts or curved surfaces, we encounter several problems that must be addressed in the production process. Various factors affect the quality and accuracy of production.
Ján Varga +4 more
doaj +2 more sources
Numerical studies on rock breaking of single axe-shaped PDC cutter
Journal of Physics: Conference Series, 2023 Abstract For a drill bit, the cutter is the most important part to break the rock. In oilwell drilling, polycrystalline diamond compact (PDC) bit is widely used to shear the rock formation. In this paper, a finite element model with including the axe-shaped PDC cutter and rock formation is developed to study the rock breaking behaviours.
Jianlin Yao, Wei Zhang, Bin Liu
openaire +2 more sources
Military technology in mine rescue [PDF]
Scientific Journal of the Military University of Land Forces, 2021 The sense of security is an individual’s one-sided personal expression referring to one’s awareness of existing threats and potential possibilities of their prevention.
Piotr Hałys, Piotr Kowalczyk
doaj +1 more source
Hob cutter shaping for internal straight thread
MORSKIE INTELLEKTUAL`NYE TEHNOLOGII)</msg>, 2021 Резьба используется во многих механизмах и достаточно часто для разъемных соединений деталей судовых машин. Для повышения долговечности внутренней цилиндрической резьбы и производительности процесса ее нарезания предлагается новая методика «профилирования червячной фрезы для нарезания внутренней цилиндрической резьбы методом огибания.
openaire +1 more source
Rock Breaking Mechanism and Experimental Study of Axe-shaped PDC Cutter
Shiyou jixie, 2022 Axe-shaped PDC cutter has more obvious rock breaking advantage than conventional PDC cutter. In order to analyze the rock breaking mechanism of the axe-shaped PDC cutter, the finite element simulation and test were used to conduct comparison and force ...
Zou Deyong +3 more
doaj
Determination of Tool Profile for the Milling of Three Screw Pump Rotor [PDF]
, 2015 partially_open2The rotors of three screw pumps are commonly machined using shaped milling cutters. The determination of the exact shape of the cutter is very important, since a high precision in the machining is required to obtain a high volumetric ...
Mimmi Giovanni, Pennacchi Paolo
core +1 more source
An Experimental Study on Milling Titanium Alloy with a Revolving Cycloid Milling Cutter
Applied Sciences, 2020 In this paper, a revolving cycloid milling cutter was designed with a larger effective cutting helix angle and rake angle than a ball end milling cutter of the same diameter.
Guangyue Wang +3 more
doaj +1 more source
Numerical Simulation Study on Characteristics of Tight Hard Sand Broken by Axe-shaped PDC Cutter
Shiyou jixie, 2021 The study on the specific rock breaking mechanism of axe-shaped PDC cutter in the existing literatures is relatively less, the rock breaking characteristic test data are mostly for field application data, and there is short of theoretical basis of tooth ...
Zhao Runqi +5 more
doaj