Results 121 to 130 of about 879 (166)
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Influence of grinding parameters on surface temperature and burn behaviors of grinding rail
Tribology International, 2018Abstract Reasonable grinding parameters are significant problem affecting surface quality of rail grinding. The objective of this study is to explore the effect of grinding parameters on rail grinding temperature and burn behaviors using an inserted semi-artificial thermocouple method.
Q Y Liu
exaly +2 more sources
Tribology International, 2019
Abstract This study presents a numerical model of the grinding force during rail grinding that considers the influence of the swing angle of the grinding stone on the position of the grinding area. The numerical model of movement process and material removal of single abrasive grain at different swing angles are established.
Q Y Liu, H H Ding
exaly +2 more sources
Abstract This study presents a numerical model of the grinding force during rail grinding that considers the influence of the swing angle of the grinding stone on the position of the grinding area. The numerical model of movement process and material removal of single abrasive grain at different swing angles are established.
Q Y Liu, H H Ding
exaly +2 more sources
Effects of abrasive material and hardness of grinding wheel on rail grinding behaviors
Wear, 2020Abstract Abrasive material and hardness of grinding wheel are two important factors affecting the grinding efficiency and quality. In this study, two kinds of abrasive grains (i.e., zirconium corundum (ZA) and brown fused alumina (BA)) were used to produce eight grinding wheels, among which five with different contents of abrasive grains and four ...
Q Y Liu, H H Ding
exaly +2 more sources
The application of contact mechanics to rail profile design and rail grinding
Wear, 2002Abstract While many railway engineers are exploring the benefits of the latest lubrication technologies, bogie types and metallurgies, the wheel/rail (w/r) contact mechanics are often overlooked or poorly controlled. But the geometry of the w/r contact permeates every facet of the w/r interaction, having profound effects on wear, fatigue, corrugation,
Eric E Magel, Joseph Kalousek
exaly +2 more sources
Probing the effect of grinding-heat on material removal mechanism of rail grinding
Tribology International, 2020Abstract Rail grinding is of vital importance for high-speed railway with safe, reliable and comfortable operation. Here, a self-design grinding machine was applied to evaluate the performance of as-prepared grinding stone (GS) vs Rail under normal loads and grinding speeds.
Xiaoqiang Fan +2 more
exaly +2 more sources
Grinding force modeling and experimental verification of rail grinding
Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 2020Many factors could affect the grinding force during rail grinding processes. Therefore, the grinding force modeling is necessary for predicting the grinding forces under different rail grinding parameter conditions. In this study, 3D models of grinding wheels were constructed based on the surface topographies of real grinding ...
Hao-Hao Ding +7 more
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Theoretical analysis of passive rail grinding
Metal Working and Material Science, 2022Introduction. There are different rail machining technologies designed to eliminate defects on the tread surface and extend the life cycle of rails. The most used is the technology of grinding rails with rotating grinding wheels using rail-grinding trains.
Andrey Ilinykh +2 more
openaire +1 more source
Optimal design of rail grinding patterns based on a rail grinding target profile
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 2016Based on the grinding target profile of the rail and the grinding capacity of a single grinding stone, a numerical calculation method for rail grinding patterns that includes grinding angle and grinding power of each grinding stone of the GMC96 rail grinding train was designed and established.
Qiang Lin +4 more
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Rail Grinding and Track Vibration Resonances
2021Transit agencies in North America typically specify the ISO 3095:2005 rail roughness limits as an acceptance requirement in the grinding specifications. However, in practice, this requirement is rarely achieved, and the rail grinding industry typically proposes the EN 13231–3:2012 limits as alternate criteria for rail roughness.
Shankar Rajaram +2 more
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Probing the effect of abrasive wear on the grinding performance of rail grinding stones
Journal of Manufacturing Processes, 2021Abstract Grinding behaviour and wear mechanism of self-fabricated rail grinding stones (GS) using zirconia alumina (ZA), white fused alumina (WA) and brown fused alumina (A) were investigated in detail. The results illustrated that the grinding efficiency grew from GS-ZA and GS-A to GS-WA, and the GS-ZA gave the best ground rail surface quality.
Wulin Zhang +5 more
openaire +1 more source