Development of a new rotary ultrasonic spindle for precision ultrasonically assisted grinding

Wu, Yongbo; Yokoyama, Syota; Satō, Takashi; Lin, Weimin; Tachibana, Toru

doi:10.1016/j.ijmachtools.2009.06.012

Cited by 32 publications

(13 citation statements)

References 2 publications

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“…Ultrasonic machining technology is widely used in the field of ultra-precision machining of difficult-to-machine materials [ 1 , 2 , 3 ]. A series of ultrasonic-assisted machining technology has been developed by combining ultrasonic technology with cutting, grinding, and other traditional processing technologies [ 4 , 5 , 6 ]. With the development of special processing technologies such as electronic processing, plasma processing and laser processing, many more advanced composite processing technologies have been developed by the combination of ultrasonic and various special processing technologies [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Material Removal Characteristics of Spherical-Array-Focused Ultrasonic Abrasive Machining

Wang

Yuan

et al. 2023

Micromachines

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To improve the ultrasonic energy and realize far-field ultrasonic abrasive machining of complex surfaces, a spherical-array-focused ultrasonic abrasive machining system was established. By combining ultrasonic field simulation, detection and a single-factor experiment, the influences of the ultrasonic generator current, abrasive concentration, and particle size on the material removal properties and surface quality evolution of quartz glass were investigated. When the current was less than 0.4 A, the material removal showed plastic removal at the nanoscale. When the current was more than 0.5 A, the cavitation phenomenon formed micron-scale impact removal traces on the workpiece surface. The increase in abrasive concentration increased the impact density and material removal rate, while excessive abrasive concentration increased the impeding effect between abrasive particles and reduced the material removal rate. Moreover, the increase in abrasive particle concentration enhanced heterogeneous cavitation nucleation, promoted the removal of abrasive impact materials under the action of a cavitation jet, and inhibited the removal of direct surface cavitation. The abrasive particle size affects the heterogeneous cavitation nucleation and the acceleration of the cavitation jet on abrasive particles, which affects the material removal rate and surface quality. By controlling the energy of the focused ultrasound and abrasive parameters, the plastic or brittle domain removal of quartz glass can be achieved at the micro- and nanoscales.

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Section: Introductionmentioning

confidence: 99%

Material Removal Characteristics of Spherical-Array-Focused Ultrasonic Abrasive Machining

Wang

Yuan

et al. 2023

Micromachines

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“…However, the ultrasonic vibration of many devices is superimposed on the workpiece, which is lack of process universality [18][19][20][21][22]. Even if the ultrasonic vibration is superimposed on the abrasive tools, the maximum diameter of abrasive tools is only 50mm [23][24][25][26][27]. The small size of abrasive tools limits the processing e ciency.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the longitudinal-flexural resonating spindle in ultrasound-assisted grinding of SiCp/Al composites

Qin

Zhu

et al. 2022

Int J Adv Manuf Technol

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Rotary ultrasonic machining is a cost-effective and precise machining method for hard and brittle materials. Aiming at processing SiCp/Al composites, a rotary ultrasonic grinding spindle is proposed in the present study. Expressions were established to calculate the displacement, rotation angle, bending moment, and shear force of the vibrating elements based on the Mindlin moderate plate theory. Combining continuous and boundary conditions of vibrating elements with the proposed expressions, the vibration model and frequency equation of longitudinal-exural resonating transformer with a large load were established. Then two transformers were designed according to the frequency equation. The resonant characteristics of the transformers were studied using nite element analysis, impedance analysis, and ultrasonic resonance experiments. The obtained results show that the maximum deviation between the resonant frequency and the design frequency of the transformers was 4.95%. Moreover, the maximum deviation of the positions of the pitch circles was 6.51%. It is concluded that the proposed designs have high accuracy. Finally, the orthogonal single-factor experiments of SiCp/Al composites were performed with and without ultrasound. The obtained resultsshow that introducing ultrasonic vibrations signi cantly reduces the grinding force and the surface roughness while improving the surface quality of the SiCp/Al workpiece. The present study is expected to provide experimental fundamentals to further improve the structure of the grinding spindle, optimize process variables of ultrasound-assisted grinding, and improve the processing e ciency.

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Section: Introductionmentioning

confidence: 99%

Investigation of the longitudinal-flexural resonating spindle in ultrasound-assisted grinding of SiCp/Al composites

Qin²,

Zhu³

et al. 2022

Preprint

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Rotary ultrasonic machining is a cost-effective and precise machining method for hard and brittle materials. Aiming at processing SiCp/Al composites, a rotary ultrasonic grinding spindle is proposed in the present study. Expressions were established to calculate the displacement, rotation angle, bending moment, and shear force of the vibrating elements based on the Mindlin moderate plate theory. Combining continuous and boundary conditions of vibrating elements with the proposed expressions, the vibration model and frequency equation of longitudinal-flexural resonating transformer with a large load were established. Then two transformers were designed according to the frequency equation. The resonant characteristics of the transformers were studied using finite element analysis, impedance analysis, and ultrasonic resonance experiments. The obtained results show that the maximum deviation between the resonant frequency and the design frequency of the transformers was 4.95%. Moreover, the maximum deviation of the positions of the pitch circles was 6.51%. It is concluded that the proposed designs have high accuracy. Finally, the orthogonal single-factor experiments of SiCp/Al composites were performed with and without ultrasound. The obtained results show that introducing ultrasonic vibrations significantly reduces the grinding force and the surface roughness while improving the surface quality of the SiCp/Al workpiece. The present study is expected to provide experimental fundamentals to further improve the structure of the grinding spindle, optimize process variables of ultrasound-assisted grinding, and improve the processing efficiency.

show abstract

Development of a new rotary ultrasonic spindle for precision ultrasonically assisted grinding

Cited by 32 publications

References 2 publications

Material Removal Characteristics of Spherical-Array-Focused Ultrasonic Abrasive Machining

Material Removal Characteristics of Spherical-Array-Focused Ultrasonic Abrasive Machining

Investigation of the longitudinal-flexural resonating spindle in ultrasound-assisted grinding of SiCp/Al composites

Investigation of the longitudinal-flexural resonating spindle in ultrasound-assisted grinding of SiCp/Al composites

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