Results 71 to 80 of about 388,520 (305)

An Impact of Technological Factors on the Kinematic Accuracy of Cylindrical Gear Wheels during Machining

open access: yesЖурнал інженерних наук
The article shows the impact of technological factors, such as cutting modes, to ensure the kinematic accuracy of gears, in particular, the minimum accumulated pitch error.
Tetiana Halchuk   +5 more
doaj   +1 more source

Experiment on Conical Pick Cutting Rock Material Assisted with Front and Rear Water Jet

open access: yesAdvances in Materials Science and Engineering, 2015
Conical picks are one kind of cutting tools widely used in engineering machinery. In the process of rock breaking, the conical pick bears great cutting force and wear. To solve the problem, a new method, conical pick assisted with high pressure water jet,
Xiaohui Liu   +3 more
doaj   +1 more source

A rotary centrifugal machining of replaceable multi-faceted cutting tool inserts

open access: yesИзвестия высших учебных заведений. Поволжский регион:Технические науки, 2021
Background. The object of the research is replaceable multi-faceted carbide tool inserts with rounded cutting edges to increase their strength. The subject of the research is the operation of centrifugal-rotary processing for rounding the cutting edges
A.V. Lipov, N.N. Nyrkov, V.A. Lipov
doaj   +1 more source

Modeling of process of gear milling for definition of the intense deformed state in replaceable many-sided plates of a worm mill [PDF]

open access: yesMATEC Web of Conferences, 2019
The tool equipment plays an important role in work of machine-building enterprises. One of the most important elements of equipment is the metal-cutting tool [1].
Artamonov E.V.   +2 more
doaj   +1 more source

Использование современных инструментальных материалов при механической обработке резанием износостойкого чугуна ИЧ210Х30Г3 [PDF]

open access: yes, 2013
В работе приведены результаты экспериментального исследования механической обработки резанием заготовок из износостойкого чугуна с повышенной твердостью. Предлагается использовать современные инструментальные сплавы.
Дядюра, К. О., Юнак, А. С.
core  

Simulation of a finishing operation : milling of a turbine blade and influence of damping [PDF]

open access: yes, 2012
Milling is used to create very complex geometries and thin parts, such as turbine blades. Irreversible geometric defects may appear during finishing operations when a high surface quality is expected.
BALMES, Etienne   +4 more
core   +5 more sources

Aggressive prostate cancer is associated with pericyte dysfunction

open access: yesMolecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero   +11 more
wiley   +1 more source

The study of end milling temperature of low-alloy steel in coarse-grained and ultrafine-grained states

open access: yesFrontier Materials & Technologies
The paper presents the results of the study of the end milling temperature of low-alloy steel depending on the cutting modes and the type of crystalline structure. The experiment was carried out on a PROMA FHV-50PD universal milling machine.
Dmitry A. Rastorguev   +2 more
doaj   +1 more source

Integration of dynamic behaviour variations in the stability lobes method: 3D lobes construction and application to thin-walled structure milling [PDF]

open access: yes, 2006
Vibratory problems occurring during peripheral milling of thin-walled structures affect the quality of the fin- ished part and, to a lesser extent, the tool life and the spindle life.
Arnaud, Lionel   +3 more
core   +3 more sources

Screening for lung cancer: A systematic review of overdiagnosis and its implications

open access: yesMolecular Oncology, EarlyView.
Low‐dose computed tomography (CT) screening for lung cancer may increase overdiagnosis compared to no screening, though the risk is likely low versus chest X‐ray. Our review of 8 trials (84 660 participants) shows added costs. Further research with strict adherence to modern nodule management strategies may help determine the extent to which ...
Fiorella Karina Fernández‐Sáenz   +12 more
wiley   +1 more source

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