Study on Imitating Grinding of Two-Dimensional Ultrasonic Vibration Turning System

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 power is much larger than normal grinding force. The ultrasonic vibration frequency is so high and the contact time of grains with the workpiece is so short that the pulse force will be balanced by reaction force from workpiece. In grinding workpiece was loaded by the periodical stress field, which accelerates the fatigue fracture.

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Study on Generating Machining Performance of Two-Dimensional Ultrasonic Vibration-Composited Electrolysis/Electro-Discharge Technology for MMCs

Materials ◽

10.3390/ma15020617 ◽

2022 ◽

Vol 15 (2) ◽

pp. 617

Author(s):

Jing Li ◽

Wanwan Chen ◽

Yongwei Zhu

Keyword(s):

Ultrasonic Vibration ◽

Orthogonal Experiment ◽

Spindle Speed ◽

Machining Efficiency ◽

Matrix Composites ◽

Two Dimensional ◽

Machining Performance ◽

Factors Affecting ◽

Electro Discharge Machining ◽

Workpiece Vibration

Ultrasonic vibration-composited electrolysis/electro-discharge machining technology (UE/DM) is effective for machining particulate-reinforced metal matrix composites (MMCs). However, the vibration of the tool or workpiece suitable for holes limits the application of UE/DM. To improve the generating machining efficiency and quality of flat and curved surfaces, in this study, we implemented two-dimensional ultrasonic vibration into UE/DM and constructed a novel method named two-dimensional ultrasonic vibration-composited electrolysis/electro-discharge machining (2UE/DM). The influence of vibration on the performance of 2UE/DM compared to other process technologies was studied, and an orthogonal experiment was designed to optimize the parameters. The results indicated that the materiel remove rate (MRR) mainly increased via voltage and tool vibration. The change current was responsible for the MRR in the process. Spindle speed and workpiece vibration were not dominant factors affecting the MRR; the spindle speed and tool and workpiece vibration, which reduced the height difference between a ridge and crater caused by abrasive grinding, were responsible for surface roughness (Ra) and form precision (δ). Additionally, the optimized parameters of 1000 rpm, 3 V, and 5 um were conducted on MMCs of 40 SiCp/Al and achieved the maximum MRR and minimum Ra and δ of 0.76 mm3/min, 3.35 um, and 5.84%, respectively. This study’s findings provide valuable process parameters for improving machining efficiency and quality for MMCs of 2UE/DM.

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Development of the Two-Dimensional Ultrasonic Cutting System Based on the Mechanism of Single-Excitation Elliptical Vibration by Means of Opening Chutes on the Horn

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.693.1272 ◽

2016 ◽

Vol 693 ◽

pp. 1272-1278

Author(s):

Jie Li ◽

Feng Jiao ◽

Ying Niu ◽

Long Fei Shi

Keyword(s):

Cutting Force ◽

Ultrasonic Vibration ◽

Two Dimensional ◽

Vibration Cutting ◽

Elliptical Vibration ◽

Cutting Experiments ◽

Cutting System ◽

Ultrasonic Vibration Cutting ◽

Ultrasonic Cutting ◽

Force Characteristics

Based on the mechanism of single-excitation elliptical vibration by means of opening chutes on the horn, a novel two-dimensional ultrasonic cutting system was developed. Vibration characteristics of the two-dimensional ultrasound cutting system were researched and the longitudinal and bending amplitude of the system with different number of chutes were obtained. By using developed two-dimensional ultrasonic vibration cutting systems, series of cutting experiments were carried out and cutting force characteristics were researched compared with that in traditional cutting.

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Experimental Temperature Studies on Two Dimensional Ultrasonic Vibration Grinding the Nano-ZrO2 Ceramics

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.416.540 ◽

2009 ◽

Vol 416 ◽

pp. 540-545

Author(s):

Ping Yan Bian ◽

Bo Zhao ◽

Yu Li

Keyword(s):

Surface Temperature ◽

Ultrasonic Vibration ◽

High Surface ◽

Grinding Wheel ◽

Grinding Temperature ◽

Two Dimensional ◽

Workpiece Surface ◽

Grinding Parameters ◽

Thermocouple Method ◽

The Relationship

In processing of engineering ceramics materials with diamond grinding wheel, grinding heat is one of vital factors influencing workpiece surface quality. Grinding parameters have important influences on workpiece surface temperature distributions. Contrast experiments on grinding temperature of nanoZrO2 under common and two dimensional ultrasonic vibration grinding(TDUVG) were carried out in this paper by manual thermocouple method. The relationship between grinding parameters and grinding temperature was clarified through theoretical analysis and experiment confirmation. The research results show that with the increases of grinding depth, grinding speed, and decrease of working table speed, the workpiece’s surface temperature would heighten accordingly. Furthermore, comparing with high surface layer temperature in common grinding, which often results in grinding burn, TDUVG can reduce grinding temperature effectively.

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Design and development of an ultrasonic vibration assisted turning system for machining bioabsorbable magnesium alloys

Procedia CIRP ◽

10.1016/j.procir.2018.09.026 ◽

2018 ◽

Vol 77 ◽

pp. 324-327 ◽

Cited By ~ 5

Author(s):

Eugenio Di Iorio ◽

Rachele Bertolini ◽

Stefania Bruschi ◽

Andrea Ghiotti

Keyword(s):

Magnesium Alloys ◽

Ultrasonic Vibration ◽

Design And Development ◽

Turning System

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Test Research on the Surface Residual Stress of Dimensional Ultrasonic Vibration Grinding for Al2O3/ZrO2(n)

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.295-297.78 ◽

2011 ◽

Vol 295-297 ◽

pp. 78-82

Author(s):

Yan Wu ◽

Er Geng Zhang ◽

Wen Zhong Nie

Keyword(s):

Residual Stress ◽

Tensile Stress ◽

Ultrasonic Vibration ◽

Ground Surface ◽

Ductile Deformation ◽

Grinding Wheel ◽

Ceramic Surface ◽

Two Dimensional ◽

Surface Residual Stress ◽

Xrd Diffraction

Based on the research for the structure of the ceramic nanocomposites’ intragranular for Al2O3/ZrO2(n)，we did the test by the workpiece two-dimensional vibration grinding(WTDUVG), and focus on analyzing the characteristic and the effect element of the two-dimensional ultrasonic vibration grinding ceramic surface residual stress by the XRD diffraction. The result show that ceramic dimensional ultrasonic vibration grinding surface tensile stress is less than the same conventional grinding (CG) surface under tensile stress; two-dimensional ultrasonic vibration grinding surface residual compressive stress than conventional ground surface residual stress under the same grinding. Material removal mechanism of the grinding nature of the surface residual stress, when the material removaled by ductile deformation, grinding surface equal residual stress; when the material removaled by brittle- ductile mixed mode, the grinding surface tensile stress reduced, because the fracture of the ground surface, tensile stress released. As a results, the grit size of grinding wheel, Grinding depth and workpiece mechanical properties are the main technology factors affected the nature and size of the residual stress of ground surface.

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Research on Surface Roughness and Micro-Topography of Nano-ZrO2 Plate in Two-Dimension Ultrasonic Grinding

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.53-54.243 ◽

2008 ◽

Vol 53-54 ◽

pp. 243-247 ◽

Cited By ~ 1

Author(s):

Bo Zhao ◽

Ming Li Zhao ◽

Guo Fu Gao

Keyword(s):

Surface Roughness ◽

Ultrasonic Vibration ◽

Ceramic Materials ◽

Ceramic Plate ◽

Two Dimensional ◽

Machined Surface ◽

Ultrasonic Grinding ◽

High Efficient ◽

Micro Topography ◽

Processing Difficulty

The influence of ultrasonic vibration on the surface roughness and micro-topography of ceramics plate is discussed in this paper. Grinding assisted by two-dimensional ultrasonic vibration is developed to deal with the processing difficulty of ceramic materials due to its hard-brittle property. The experimental results show that the surface roughness value obtained in two-dimensional ultrasonic grinding nano-ZrO2 ceramic plate specimen is obviously smaller than that in common grinding, and the scratched grooves on the machined surface in ultrasonic grinding is wider and relatively smoother than that in common grinding. Consequently, it proves that the two-dimensional ultrasonic machining is a feasible, high-efficient machining method for hard-brittle materials.

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Development of a Two-Dimensional Ultrasonic Vibration Assisted Machining Technology with Tool Vibration

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.487.419 ◽

2011 ◽

Vol 487 ◽

pp. 419-422 ◽

Cited By ~ 2

Author(s):

Zhen Zhong Wang ◽

Yin Biao Guo ◽

Yong Bo Wu

Keyword(s):

Ultrasonic Vibration ◽

Removal Rate ◽

Single Point ◽

Longitudinal Mode ◽

Two Dimensional ◽

Tool Vibration ◽

Bending Mode ◽

Ultrasonic Assisted ◽

Ultrasonic Assisted Machining ◽

Set Up

As the reliable technology, ultrasonic assisted machining is widely used for brittle materials. This paper provides a two-dimensional(2D) ultrasonic vibration assisted machining technology with tool vibration using elliptical vibrator with longitudinal mode and bending mode, and set up the experiment device. Si wafer is taken as the workpiece, and single point cutting experiments for micro groove are investigated. For the further application, the ultrasonic assisted polishing experiment with wheel block is executed. Experimental results indicate that ultrasonic assisted cutting with tool vibration can improve the cutting performance and enhance the ductile removal. And the ultrasonic assisted polishing with whetstone piece makes the better surface roughness and higher material removal rate.

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Study on Dynamic Characteristics and Simulation of Plane Grinding System under Two-Dimensional Ultrasonic Vibration

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.392-394.304 ◽

2008 ◽

Vol 392-394 ◽

pp. 304-308

Author(s):

Bao Yu Du ◽

Bo Zhao

Keyword(s):

Natural Frequency ◽

Ultrasonic Vibration ◽

Simulation Experiment ◽

Impedance Analysis ◽

Frequency Equation ◽

Frequency Change ◽

Two Dimensional ◽

Group System ◽

The Mathematical Model ◽

Grinding System

In this paper, the mathematical model with two associated coordinates is established for two-dimension ultrasonic vibration group system by impedance analysis, and natural frequency equation of 2D vibration system is deduced by which the influence of natural frequency change of individual components on the natural frequency of group system is analyzed. Amplitude-frequency characteristics of system were tested which verified the correctness of the theory. In simulation experiment on large plate under two-dimensional ultrasonic vibration grinding, superimposed tracks of a number of irregular ovals exist in vibrating plane, that is different from previous research that only one simply oval track exists in the vibrating plane apparently. The results supply a reliable theoretical and experimental basis for the further discussions on the abrasive removal mechanism under two-dimensional ultrasonic vibration.

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