Industrial Lubrication and Tribology: Volume 69 Issue 4

Numerical and experimental investigation on influence of compound dimple on tribological performances for rough parallel surfaces

Fanming Meng, Zhitao Cheng, Tiangang Zou

This study aims to explore the superiority of the compound dimple (e.g. the rectangular-rectangular dimple) and compare its tribological performance for rough parallel surfaces…

Effect of gas slip on the behavior of the aerostatic guideway

Dongju Chen, Jihong Han, Chen Huo, Jinwei Fan, Qiang Cheng

This paper aims to better understand the dynamic characteristics of an aerostatic slider caused by a gas film, and the impact of a gas film slip on the load capacity, stiffness…

Effects of surface roughness and porous structure on the hydrodynamic lubrication of multi-layer oil bearing

Guotao Zhang, Yanguo Yin, Lu Xue, Guoqian Zhu, Ming Tian

The purpose of this paper is to discuss the combined effects of the deterministic surface roughness and porous structure on the lubrication property of the multi-layer bearing.

Experimental-numerical analysis of contact conditions influence on the ironing strip drawing process

Milan Djordjević, Vesna Mandić, Srbislav Aleksandrović, Vukić Lazić, Dušan Arsić, Ružica R. Nikolić, Zvonko Gulišija

The purpose of this paper is comparison of experimental values of the drawing forces to numerical values in different contact conditions, taking into account the appearance of…

Surfaces with pores: hydrodynamic lubrication

Leonid Burstein

This paper aims to assess the hydrodynamic lubrication of two opposing surfaces with identical pores having a semicircular profile. The surfaces are treated with more than one…

Wear characteristics of AlCrN coating on AISI 410 steel by the ball-cratering test method

Vijayasarathi Prabakaran, Ilaiyavel S., SureshPrabhu P., Sornakumar Samuel Thambu

In this study the microstructure and wear characteristics of Multilayer AlCrN coated AISI 410 stainless steel with the physical vapor deposition technique.

Theoretical research on sector oil-pads’ mechanical property in hydrostatic thrust bearing based on constant flow

Xibing Li, Tian Cheng, Ming Li, Mingjian Li, Ruren Wu, Yingsi Wan

The purpose of this study with the rapid development of the heavy/large mechanical equipment, the heavy computer numerical control (CNC) vertical lathe has become the ideal…

Contribution of roughness parameters in the scuffing performance of metallic surfaces

Lukasz Wojciechowski, Radomir Majchrowski, Thomas G. Mathia

Boundary lubrication cannot provide long-term protection against scuffing. Therefore, it is fundamental to recognise the breaking point of the boundary layer that activates…

Comparisons of tribological properties between laser and drilled dimple textured surfaces of medium carbon steel

Chenchun Shi, Aibing Yu, Jianzhao Wu, Weiyang Niu, Yanlin Wang

The study aims to compare tribological properties between laser dimple textured surface and drilled dimple textured surface, and to analyze the influence of dimple hardened edges…

MHD mixed convection stagnation point flow of a viscous fluid over a lubricated vertical surface

Khalid Mahmood, Muhammad Sajid, Nasir Ali, Tariq Javed

An attempt is made to study magnetohydrodynamic viscous fluid impinging orthogonally toward a stagnation point on a vertical surface lubricated with power law fluid. It has been…

Tilt angle effects on the performance of micropolar lubricated noncircular journal bearings

R. Rashidi Meybodi, M. Zare Mehrjardi, A.D. Rahmatabadi

The purpose of this paper is to study tilt angle effects as design parameters of noncircular bearings, on the linear dynamic analyses of micropolar lubricated circular, two, three…

Assessment of tribological behavior and physicochemical properties alterations of polytetrafluoroethylene imposed by wear test

Joao Luiz do Vale, Carlos Henrique da Silva, Carlos M.G. da Silva Cruz

The purpose of this article is to discuss the tribological behavior of polytetrafluoroethylene (PTFE) and property changes imposed by wear tests.

Experimental investigations of rheological behaviour and thermal conductivity of nanogrease

Alaa Mohamed, Mohamed Hamdy, Mohamed Bayoumi, Tarek Osman

This work describes the fabrication of composite nanogrease based on carbon nanotubes (CNTs) as an additive at different volume concentrations 0, 0.5, 1, 2 and 3 Wt.% and…

Removal and tribological behaviors of waxy deposition layer in cleaning process

Yanbao Guo, Shuhai Liu, Guibin Tan, Liu Yang, Deguo Wang

The wax deposition in oil wells and pipelines is very viciously negative to the petroleum extraction and crude oil transportation, and it even causes severe blockage accident…

Effect of partial grooving on the performance of hydrodynamic journal bearing

Anil B. Shinde, Prashant M. Pawar

This study aims to improve the performance of hydrodynamic journal bearings through partial grooving on the bearing surface.

Influence of feed per tooth on tool wear based on 3D finite element simulation in micro-milling of Inconel 718

Xiaohong Lu, FuRui Wang, Zhenyuan Jia, Likun Si, Yongqiang Weng

This paper aims to predict tool wear and reveal the relationship between feed per tooth and tool wear in micro-milling Inconel 718 process.

Design and vibration analysis of a self-adaptive piston in a novel nanoimprint system

Chaoran Liu, Yufeng Su, Jinzhao Yue, Junjie Wang, Weiwei Xia, Dongxue Li, Wen Wang, Pan Wang, Zhiyong Duan

A self-adaptive piston is designed for the compressional gas cushion press nanoimprint lithography system. It avoids the lube pollution and high wear of traditional piston.

Analysis on grease lubrication properties of the tripod sliding universal coupling in automotive transmission shaft

Ye Zhou, Degong Chang, Songmei Li

This paper aims to investigate the grease isothermal lubrication properties of the tripod sliding universal coupling (TSUC) in automotive transmission shaft and study its impact…

Pad attitude adjusting moment in large multi-pocket pivoted pad used in static oil journal bearing

Xizhi Ma, Miaomiao Li

Large scale is a trend of the ball mill, so the loads on their bearings become very large, bearing operating conditions turn into more severe. The moment of inertia to their pivot…

Influence of water contamination in gear lubricants on wear and micro-pitting performance of case carburized gears

Christian Engelhardt, Jochen Witzig, Thomas Tobie, Karsten Stahl

Water can alter the performance of modern gear lubricants by influencing the flank load carrying capacity of gears significantly. The purpose of this paper is to investigate the…