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Study on the surface topography of the vibration assisted belt grinding

The surface performance of pump gears has an important influence on the internal flow field flow rate and flow fluctuation amplitude instantaneous flow rate and other performance of the pump during operation When grinding gear surface with conventional grinding wheel it is easy to cause over cutting and edge collapse at the end edge of gear teeth which

Grinding characteristics during ultrasonic vibration assisted grinding

Material removal of alumina ceramics in conventional grinding is generally through brittle mode Ductile regime machining and material removal with lower proportion of brittle fractures require grinding to be performed either at extremely high speeds or at very low depth of cuts [] In general grinding process may be compared to material removal by multiple

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Key words grinding vibration; characteristic frequency; technological parameter; quick point grinding; relative deviation [J] （

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Feasibility and tool performance of ultrasonic vibration

Hence in this paper to investigate the tool performance and tool wear in ultrasonic vibration assisted milling grinding SiC f /SiC CMC four types of tools including one self designed PDC cutting tool were used and studied The cutting force machined surface roughness and tool life was selected for describing and analyzing the cutting tool performance

Alumina abrasive wheel wear in ultrasonic vibration assisted

At present the tangential ultrasonic vibration assisted profile grinding UVAPG is an effective method for machining the blade roots During UVAPG the wheel wear degrades the surface finish and geometrical accuracy However the characteristics of the wheel

Robotic Grinding Process Monitoring by Vibration Signal

The dynamic model of robotic grinding is studied and the vibration force relationship can be obtained Based on the vibration force relationship the framework of the grinding force and material removal monitoring is established In this framework the peak value of the acceleration is first extracted by the signal process and the long short

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Wear behavior of white alumina and seeded gel abrasive

Wear behavior of white alumina and seeded gel abrasive wheels in ultrasonic vibration assisted grinding of nickel based single crystal alloy Wear IF Pub Date 2024 07 23 DOI /

Modeling and simulation of grinding surface topography

Grinding is an important means of realizing precision and ultra precision machining Vibration caused by an unbalanced grinding wheel in grinding process has a significant impact on the quality of workpiece surface However the effect of wheel surface topography and/or the relative vibration between grinding wheel and workpiece are not

Ultrasonic vibration assisted grinding of quartz glass micro

When the spindle speed is low it is difficult to achieve the desired effects of high frequency vibration assisted grinding because of insufficient contact between the grit and workpiece The internal surface roughness increased with the feed speed Fig 18 b At a feed speed of 5 mm/min the internal surface roughness of the micro hole

Material removal mechanism and grinding force modelling

Based on the varied depth nano scratch test and the grain trajectory of ultrasonic vibration assisted grinding UVAG a theoretical model of the normal grinding force is acquired using the material removal in unit time as a bridge The single factor experiment illustrates that the grinding force increases with the increase of the grinding

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Vibration monitoring of a gear grinding process CORE

Specifically this research records the vibrations on the grinding wheel and decomposes them using a Fast Fourier Transform FFT The vibration patterns at the grinding wheel mesh frequency are studied using two design variables that characterize the tool a grinding wheel diameter d and b location along the grinding wheel width y

Development of a two dimensional ultrasonic vibration

Liang Zhiqiang; Wang Xibin; Wu Yongbo / Development of a two dimensional ultrasonic vibration assisted grinding technique of monocrystal silicon Jixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering 2010 ; 46 13 192 198

System design and experimental research on ultrasonic assisted

Aiming at the low toughness high hardness and difficult machining of hard and brittle materials such as Nano ZrO 2 ceramics a new type of ultrasonic assisted elliptical vibration grinding UAEVG system was designed to improve its machinability and grinding quality The overall frequency equation of the ultrasonic grinding cup shaped tool transformer UGCTT

Wear mechanism of aggregated cBN grains during

The experiments involve conventional grinding and ultrasonic vibration assisted grind ing on gamma titanium aluminum intermetallic compounds and the grain wear mechanism is comprehensively revealed by observing the radial wear height normal force average volume pile up ratio and morphology evolution of the grains

Grinding Chatter and Vibrations SpringerLink

Grinding is also viewed as an unpredictable process because of the large number of variables involved and inadequate understanding of the relationships between those variables and the grinding process performance That is particularly true of vibration in grinding operations commonly referred to as grinding chatter

Molecular dynamics simulations of ultrasonic vibration

Ultrasonic vibration assisted grinding UVAG has attracted plenty of attention to significantly improve surface integrity However existing research has not systematically investigated the effect of vibration directions during UVAG at atomic and

Active vibration control in robotic grinding using six axis

The effectiveness of the proposed robot grinding vibration active control method using six axis acceleration feedback is fully verified through the experiment of vibration suppression under the variable orientation of the robot end It can be found that the proposed method is suitable for workpiece grinding with different shapes and can obtain