Journal of Cleaner Production. Volume 129, 15 August 2016, Pages 212-222, 15 August 2016, Pages 212-222

Based on nonlocal theory, The effects of ultrasonic frequencies on the grinding force and nonlocal decay rate are obtained through the experimental study of material properties under ultrasonic vibration grinding test. The results of experiments showed that grinding force is attenuated in the ultrasonic vibration frequency ranges and this attenuation phenomenon becomes more and …

Experimental results showed that the critical ductility grinding depth of the nano-ZrO2 ceramics is up to 12 µm in common grinding methods, while in ultrasonic grinding is up to 20µm.

In this paper, the characteristic of grinding force in two-dimensional ultrasonic vibration assisted grinding nano-ceramic was studied by experiment based on indentation fracture mechanics, and mathematical model of grinding force was established. The study shows that grinding force mainly result from the impact of the grains on the workpiece in ultrasonic grinding, and the pulse …

A micro ultrasonic grinding device with very high frequency and its application. Eng Mater, 329 (2007), pp. 45-50. View Record in Scopus Google Scholar. H. Onikura, O. Ohnishi, Y. ... Research on the surface characteristics in ultrasonic grinding nano-zirconia ceramics. J Mater Process Technol, 209 (1) (2009), pp. 32-37. Article Download PDF ...

DOI: 10.1016/J.JMATPROTEC.2008.01.061 Corpus ID: 137355888; Research on the surface characteristics in ultrasonic grinding nano-zirconia ceramics @article{Gao2009ResearchOT, title={Research on the surface characteristics in ultrasonic grinding nano-zirconia ceramics}, author={G. F. Gao and Bo Zhao and Daohui Xiang and Qing Hua Kong}, journal={Journal of …

Abstract: The ultrasonic-assisted single-grit grinding device is designed which can be used to efficiently simulate grinding process, and the comparative tests of single-grit ultrasonic grinding are carried out between Nano-ZrO 2 ceramics and ZTA ceramics under different grinding depth. The experimental results show that the bigger the scratch depth was, the greater damage …

The use of ultrasonic vibrations during grinding can lead to favorable results, such as easier processing of difficult-to-cut materials, improved surface quality, reduced workpiece damage and cutting forces. In order to investigate the efficiency of this technique to...

Uhlmann E, Daus NA (2000) Ultrasonic assisted grinding—application advantages through an innovative grinding process (in German). BMBF-Abschlussbericht. Wu Y, Fan Y, Kato M, Kuriyagawa T, Syoji K, Tachibana T (2004) Development of an ultrasonic elliptic-vibration shoe centerless grinding technique. J Mater Process Technol 155–156:1780–1787

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 …

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 7.27 nm, as calculated by Hertz contact theory, and the critical depth of the brittle-to-ductile transition is 76.304 nm, as measured by AFM and SEM.Based on the varied-depth nano scratch test and …

Request PDF | On Jan 1, 2018, Masayoshi Mizutani and others published Micro-/Nano-texturing by Ultrasonic-Assisted Grinding | Find, …

Ultrasonic milling is especially suited to process micron-size and nano-size materials, such as ceramics, alumina trihydrate, barium sulphate, calcium carbonate and metal oxides. The tables below show microscopic …

Dispersion of Nanoparticles. Ultrasonic grinding and dispersing is often the only method to process nano particles efficiently in order to obtain primary particles. A small primary particle size results in a large surface area …

Kwak et al. investigated the effect of an ultrasonic vibrating table on ELID grinding aluminum nitride ceramics. They found that the material removal rate increased by approximately 36%. Zhao et al. developed the surface roughness prediction model in UVA-ELID grinding nano-composite ceramics and also validated the model. However, the surface ...

In this paper, the characteristic of grinding force in two-dimensional ultrasonic vibration assisted grinding nano-ceramic was studied by experiment based on indentation fracture mechanics, and ...

The full factorial experimental array comprised 18 tests involving variations in wheel speed (30, 35 and 40 m/s), table speed (200, 250 and 300 mm/min) and grinding condition (with and without vibration). Depth of cut/pass was fixed at 1.0mm with all trials performed in a down grinding creep feed mode without spark-out.

On the basis of analyzing the brittleness, ductileity, and the removal mechanisms of the^nano-ZrO2 Ceramics, the critical ductile grinding depth formula of the nano-ceramics was established. Due to superductileity of the nano-ZrO2 ceramics, it couldn't apply the formula of the common engineering ceramic material according to experimental results.

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) …

In this chapter, a novel ultrasonic-assisted micro-/nano-texturing method was proposed and developed. A new 3D ultrasonic vibration spindle was developed for carrying out the proposed processes. The texturing mechanisms were analyzed by mathematically calculating the cutting loci and establishing the surface generation modeling processes.

The ultrasonic-assisted single-grit grinding device is designed which can be used to efficiently simulate grinding process, and the comparative tests of single-grit ultrasonic grinding are carried out between Nano-ZrO_2 ceramics and ZTA ceramics under different ...

ultrasonic nano grinding CGM Grinding Plant Ultrasonic Wet Milling and Micro Grinding Ultrasonic cavitation is an efficient means for the wet milling and . 제품검색 quot Brand quot Electronic Multi Channel Pipette 전동식 멀티 채널 마이크로 피펫 quot …

The crack extension course and ductile removal mechanism of nano ZrO2 ceramics were analyzed in this paper. On the basis of contrast tests with or without ultrasonic vibration, the influences of critical ductile grinding depth on grinding forces and surface quality were studied by dynamometer, SEM and AFM in different grinding condition.

Nano ceramics possessed ascendant mechanical property and physical characteristics contrast with engineering ceramics, so it has extensive application prospect in various industries. On the basis of applying the indentation fracture mechanics to analyze the removal mechanics of ceramic material, this paper analyzed the critical ductile grinding depth of the nano ZrO2 ceramics.

Research on grinding features in two dimensional ultrasonic grinding nano-complex ceramics (1); (1) 2. Development of automatic programming system for NC- ultrasonic grinding of ceramics surface; . 3. Calculation of cutter location ...

Ultrasonic Nano Grinding Mine Equipments. Ultrasonic processes for nano-particles Technical Article 20 Sep 2011 Kathrin Hielscher of Hielscher Ultrasonics has published a white paper focusing on ultrasonic milling and dispersing in the nano-technology sector. the milling and fine grinding of micron-size and sub micron-size particles. Live Chat

Abstract: The relationship between the ultrasonic grinding surface quality of Al2O3-ZrO2 nano-composite ceramics and the ultrasonic grinding frequencies was researched. Based on the ultrasonic single point scratching test, the change of material removing style illustrates the improvement of surface quality with ultrasonic grinding.

The effects of multiple ultrasonic frequencies on grinding surface quality of Al2O3-ZrO2 nano-composite ceramics are researched to provide optimization laws for …

The critical ductile grinding depth in ultrasonic grinding nano-ZrO 2 ceramic workpiece has been enlarged about 30% compared to common grinding. The experimental results showed that machining nano-ZrO 2 ceramics with ultrasonic assistance by nano-class scale is feasible. Acknowledgements.

High-power ultrasonic processor can be run at fairly high solids concentrations. A high concentration provides the effectiveness of ultrasonic processing, as ultrasonic milling effect is caused by inter-particle collision. Investigations have shown that the breakage rate of silica is independent of the solid concentration up to 50% by weight.

In this study, the surface formation and damage mechanism of hard-brittle materials in axial ultrasonic-assisted grinding (AUAG) were revealed using the grinding force and grinding force ratio. Theoretical analysis presented that the grinding force and grinding force ratio in AUAG are relatively small. AUAG is a machining method with a large tangential force and a small …