Alumina is an advanced ceramic that is frequently used in high performance applications Grinding of alumina is usually associated with micro cracks and deteriorated surface quality Ultrasonic assisted grinding has been introduced in several applications as a promising method to overcome these constraints In order to get a deeper knowledge of the
Investigation on grinding force and machining quality during rotary ultrasonic grinding deep small hole of fluorophlogopite ceramics Int J Adv Manuf Technol Zhao B Zhao Wang Kong Experimental study on the subsurface damage in the ultrasonic vibration grinding of nano ZrO2 ceramics AMM 42 2010 pp 143 146 View
Bone grinding is an essential and vital procedure in most surgical operations Currently the insufficient cooling capacity of dry grinding poor visibility of drip irrigation surgery area and large grinding force leading to high grinding temperature are the technical bottlenecks of micro grinding A new micro grinding process called ultrasonic vibration assisted nanoparticle
Turning milling and grinding are the primary methods to remove the workpiece materials using the hard tool [10] which combines well with ultrasonic vibration and makes some progress in recent et al [11] proposed some basic theories and methods to simulate the surface texturing in ultrasonic assisted turning The effects of tool geometry and ultrasonic
Three dimensional 3D ultrasonic vibration assisted ELID grinding which combines 3D ultrasonic vibration assistance with electrolytic in process grinding wheel dressing ELID is a compound process that is designed to achieve high efficiency precision machining A grinding force model of 3D ultrasonic vibration assisted ELID grinding was first developed on
Ultrasonic assisted grinding processing can effectively reduce the surface roughness and enhance the processing efficiency in the processing of hard and brittle materials However the most common ultrasonic assisted grinding is a type of contact ultrasonic grinding where the grinding tool directly contacts the workpiece which means that it is necessary to
The nano grinding process with a vibration frequency of GHz shows an accelerated growth rate When the vibration frequency is GHz the length of 1/2 〈1 1 1〉 dislocation lines increases firstly and then stabilizes This is because a dislocation network is formed in the early stage of grinding and the dislocations continue to
In this paper a varied depth nano scratch test of single grain is carried out on a nano indentation system The critical depth of the elastic plastic transition for SiC ceramics is nm as calculated by Hertz contact theory and the critical depth of the brittle to ductile transition is nm as measured by AFM and on the varied depth nano scratch test and
Ultrasonic assisted grinding processing can effectively reduce the surface roughness and enhance the processing efficiency in the processing of hard and brittle materials However the most common ultrasonic assisted grinding is a type of contact ultrasonic grinding where the grinding tool directly contacts the workpiece which means that it is necessary to
This paper reports an experimental investigation of the vibration assisted grinding process combined with MQL using oil based nanofluids with MoS 2 are presented in terms of normal and tangential forces force ratio and ground surface results show that imposed horizontal ultrasonic vibration significantly decreases
Ultrasonic assisted grinding technology can significantly improve the processing quality of hard and brittle materials with the continuous improvement of machining accuracy and the three dimensional roughness characterization of ultra precision machined surfaces has gradually become a research hotspot However it is necessary to develop a reliable three
grinding force and a better surface quality is achieved 3 Experiment of two dimensional ultrasonic assisted grinding Grinding process is a complex course and there are a lot of factors that have effect on surface quality of workpiece The grinding experiment of nano ZrO 2 ceramics is carried out to analyze surface formation mechanism of TDUAG
Ultrasonic vibration assisted grinding UVG has several advantages such as small grinding force good surface quality and high grinding efficiency outperforming conventional grinding CG However it is sensitive to process parameters making optimal processing parameters crucial and a major challenge Therefore in this study we introduce a model
The technology was referred as ultrasonic vibration assisted slant feed grinding UASG Three ultrasonic vibration modes were employed for surface texturing by UASG and different types of micro
Yan Y Zhao B Liu J 2009 Ultraprecision surface finishing of nano ZrO2 ceramics using two dimensional ultrasonic assisted grinding Int J Adv Manuf Technol 43 5 6 462 467 Article Google Scholar Gao GF Zhao B Xiang DH Kong QH 2009 Research on the surface characteristics in ultrasonic grinding nano zirconia ceramics
In order to obtain high performance gear elements with integrated shape using non resonant theory the gear grinding experiment and ultrasound assisted grinding acoustic system were established Firstly a theoretical model founded on the non resonant proposed methodology was constructed The frequency equation and displacement characteristics of the
By comparing the ultrasonic vibration nano grinding with the traditional nano grinding it was found that the grinding force of the ultrasonic vibration nano grinding showed a Periodically
Inconel 718 has been widely investigated due to its machining properties The purpose of this work was to investigate a novel proposed grinding technique for Inconel 718 with a combination of ultrasonic assisted grinding and hydrogen embrittlement HE treatment The technique was hence named hydrogen embrittlement enhanced ultrasonic assisted grinding
The rotating ultrasonic assisted grinding RUAG experiment of the conical grinding wheel generated the intermittent pit shaped micro texture on the surface of the workpiece reducing thermal damage and improving the lubrication characteristics compared with conventional grinding CG To further optimize the surface properties this paper studied the
Based on the model of a grain cutting trace in workpiece during two dimensional ultrasonic assisted grinding microscopic cutting trace of the grain is analyzed and the grain cutting trace of spiral line is defined the motion model of the contact between single abrasive particle and workpiece in a vibration period is established during two dimensional ultrasonic
Zhao B et al researched ultrasonic assisted elliptical vibration grinding of Nano ZrO 2 ceramics and the results showed that the ultrasonic assisted grinding could reduce the surface roughness
Ultrasonic assisted grinding UAG is one of the most suitable methods for the processing of hard and brittle materials such as silicon carbide SiC During UAG of SiC the machining quality is directly determined by the material removal mechanism However the research on the material removal mechanism for UAG of SiC is still not sufficiently developed
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