Measurement of Very Small Vibration Amplitude in Ultrasonic Transducer by Means of a Laser Probe

Yoneda, Katsumi; Tawata, Masahiro; Hattori, Shinichi

doi:10.1109/ultsym.1979.197161

Cited by 2 publications

(2 citation statements)

References 12 publications

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“…The major limitation of the microscope observation method is that the machining marks, indicating diamond grains trajectories, can only be observed on the RUM-machined surface of ductile materials (The details of the microscope observation method will be reviewed in Section 2 of this paper.). In addition, some methods have been reported for measuring ultrasonic vibration amplitude in other applications [25][26][27][28][29][30][31][32][33][34], which can be potentially utilized in RUM without machining of materials. The investigations on all of these reported methods indicate that there is a lack of methods to measure ultrasonic vibration amplitude in RUM machining of brittle materials.…”

Section: Introductionmentioning

confidence: 99%

A mechanistic ultrasonic vibration amplitude model during rotary ultrasonic machining of CFRP composites

et al. 2017

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Rotary ultrasonic machining (RUM) has been investigated in machining of brittle, ductile, as well as composite materials. Ultrasonic vibration amplitude, as one of the most important input variables, affects almost all the output variables in RUM. Numerous investigations on measuring ultrasonic vibration amplitude without RUM machining have been reported. In recent years, ultrasonic vibration amplitude measurement with RUM of ductile materials has been investigated. It is found that the ultrasonic vibration amplitude with RUM was different from that without RUM under the same input variables. RUM is primarily used in machining of brittle materials through brittle fracture removal. With this reason, the method for measuring ultrasonic vibration amplitude in RUM of ductile materials is not feasible for measuring that in RUM of brittle materials. However, there are no reported methods for measuring ultrasonic vibration amplitude in RUM of brittle materials. In this study, ultrasonic vibration amplitude in RUM of brittle materials is investigated by establishing a mechanistic amplitude model through cutting force. Pilot experiments are conducted to validate the calculation model. The results show that there are no significant differences between amplitude values calculated by model and those obtained from experimental investigations. The model can provide a relationship between ultrasonic vibration amplitude and input variables, which is a foundation for building models to predict other output variables in RUM.

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Section: Introductionmentioning

confidence: 99%

A mechanistic ultrasonic vibration amplitude model during rotary ultrasonic machining of CFRP composites

et al. 2017

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“…It is noted that this measurement system could not be used to measure vibration amplitude during RUM machining. Additional vibration amplitude measurement methods have been reported for applications other than RUM [13][14][15][16][17][18][19][20][21][22]. They can potentially be used for vibration measurement in RUM.…”

Section: Introductionmentioning

confidence: 99%

Vibration Amplitude in Rotary Ultrasonic Machining: A Novel Measurement Method and Effects of Process Variables

Cong

Pei

Mohanty

et al. 2011

Journal of Manufacturing Science and Engineering

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Rotary ultrasonic machining (RUM) has been used to machine both brittle and ductile materials as well as composite materials. There are numerous reported studies about the effects of various process variables on output responses. However, the current literature contains few articles about the measurement methods of vibration amplitude in RUM and about the effects of process variables on vibration amplitude. The lack of such knowledge has made it difficult to explain .some experimentally obseryed phenomena in RUM and degraded the creditabitity of some experimental results with RUM. This paper, for the first time, presents a measurement method capable of measuring vibration amplitude during RUM machining. It also reports RUM experimental results on effects of cutting tool, ultrasonic power, workpiece material, tool rotation speed, and feedrate on ultr-a.wnic amplitude. This study will fill some blanks in the literature and provide plausible e.xplanations to some seemingly contradictory results reported in the literature.

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Measurement of Very Small Vibration Amplitude in Ultrasonic Transducer by Means of a Laser Probe

Cited by 2 publications

References 12 publications

A mechanistic ultrasonic vibration amplitude model during rotary ultrasonic machining of CFRP composites

A mechanistic ultrasonic vibration amplitude model during rotary ultrasonic machining of CFRP composites

Vibration Amplitude in Rotary Ultrasonic Machining: A Novel Measurement Method and Effects of Process Variables

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