Results 21 to 30 of about 947,691 (244)

Loading capacity of POM gear under oil lubrication

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2022
As one of the most common polymer materials, POM gear has been widely applied in automatic transmission boxes, intelligent house devices, etc. Though the mechanical properties of POM material have been extensively studied, the loading capacity and ...
Bingbing ZHONG   +4 more
doaj   +1 more source

Effect of friction on the contact stress of a coated polymer gear

open access: yesFriction, 2020
Polymer gears are used extensively in various applications. However, durability issues have been emerging because of friction at gear tooth contact areas. To extend the lifetime of polymer gears, a low-frictional coating has been considered as a possible
Su-Min Bae, Kuk-Jin Seo, Dae-Eun Kim
doaj   +1 more source

Experimental Investigation of the Wear Behaviour of Coated Polymer Gears [PDF]

open access: yesPolymers, 2021
A comprehensive experimental investigation of the wear behaviour of coated spur polymer gears made of POM is performed in this study. The three physical vapour deposition (PVD) coatings investigated were aluminium (Al), chromium (Cr), and chromium nitrite (CrN).
Brigita Polanec   +4 more
openaire   +2 more sources

Features of cascading disk-gear extrusion of plastics

open access: yesВісник Національного технічного університету України «Київський політехнічний інститут імені Ігоря Сікорського»: Серія «Хімічна інженерія, екологія та ресурсозбереження», 2021
The relevant task of today is to improve the installations for thermostat extrusion, in order to increase the indicators of resource/energy efficiency.
Анастасія Миколаївна Ковба   +2 more
doaj   +1 more source

A high-power-density design method for polymer gear systems via an adaptive non-dominated sorting genetic algorithm III and surrogate sub-models

open access: yesMaterials & Design
There is a growing and prevalent trend in the power transmission field of high-performance polymers replacing metallic materials given the strict light-weight requirement.
Zehua Lu   +4 more
doaj   +1 more source

Modelling of Elastic Gearboxes Using a Generalized Gear Contact Model [PDF]

open access: yes, 2012
The object of this paper is to present an universal model that describes the gear contact between two gears in a planar environment. The model includes elastic effects between the gear wheels.
Franciscus van der Linden   +1 more
core   +1 more source

Geometrical Analysis of 3D-Printed Polymer Spur Gears

open access: yesMachines
In this paper, we are looking for the answer to the following question: what geometric deviations do polymer gears made by 3D printing have from the theoretical geometry?
Levente Czégé, Gábor Ruzicska
doaj   +1 more source

Performance Analysis of Polymer Additive Manufactured Gear Bearings

open access: yesApplied Sciences, 2023
Bearings in general, and in this case rotational bearings, are important elements in many machines. The main objective of this study was to find out the load-bearing capacity of 3D-printed gear bearings under various rotational speeds, test the bearings ...
Cristian Moldovan, Carmen Sticlaru
doaj   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Surface Durability of 3D-Printed Polymer Gears

open access: yesApplied Sciences
This paper proposes a series of experimental determinations carried out with the aim of generating new conclusions regarding the ability of 3D-printed gears to be integrated into mechanisms without lubrication.
Robert Ciobanu   +3 more
doaj   +1 more source

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