Experimental analysis on autoresonant control of ultrasonically assisted drilling

Li, Xuan; Meadows, Alan; Babitsky, Vladimir; Parkin, Robert M.

doi:10.1016/j.mechatronics.2015.05.006

Cited by 26 publications

(15 citation statements)

References 15 publications

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“…f and D are feed rate and drill diameter, respectively. tanβ = f/πD (6) Besides, in vibration cutting, there are two steps. In first step, the vibratory tool moves forward and in the second step, it goes back.…”

Section: Effect Of L-t Vibration On Force Reductionmentioning

confidence: 99%

“…In this process, high-frequency vibrations (about 20 kHz) in a small amplitude (4-20μm) is superimposed to the conventional drilling (CD) [2][3][4]. In general, conventional drilling is faced with some problems particularly when some aeronautical materials such as aluminum or titanium alloys are selected as workpiece material [5,6]. During cutting these materials, chip forms continuously in helical coil shape causing chip clogging in the drill flutes.…”

Section: Introductionmentioning

confidence: 99%

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Effect of longitudinal−torsional vibration in ultrasonic-assisted drilling

Amini

Soleimani

Paktinat

et al. 2016

Materials and Manufacturing Processes

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In general, drilling of aeronautical materials is faced with some difficulties. To improve this process, a variety of methods have been presented by researchers. One of these methods is ultrasonic assisted drilling. In this study, performance of longitudinaltorsional vibration in ultrasonic assisted drilling of Al 7075-T6 with HSS tool is investigated. Accordingly, a vibration tool with ability of producing longitudinaltorsional vibration was designed. After modal analysis and achievement of desired resonance frequency, it was fabricated and some experimental tests were conducted. A dynamometer with six degrees of freedom was utilized to measure torque and thrust force during the cutting process. As a result, it was revealed that this kind of vibration significantly reduces cutting forces compared to the conventional drilling. Furthermore, this reduction was clarified by investigation of generated chips and tool rake angle.Moreover, effect of ultrasonic vibration on drill skidding and surface quality has been studied.

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Section: Effect Of L-t Vibration On Force Reductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of longitudinal−torsional vibration in ultrasonic-assisted drilling

Amini

Soleimani

Paktinat

et al. 2016

Materials and Manufacturing Processes

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show abstract

“…The counter values determine each oscillation period. The detail of converting a sinusoidal wave to a square wave is well presented in Li [22] and Voronina [23] PhD theses. The newly generated square wave can be further processed by an amplifier.…”

Section: The Principle Of Autoresonant Controlmentioning

confidence: 99%

Modeling of autoresonant control of a parametrically excited screen machine

Zahedi

Babitsky

2016

Journal of Sound and Vibration

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“…The new model provides an ability to highlight the effectiveness of a modern technique, which is well known as ultrasonic assisted drilling (UAD). Compared to conventional drilling (CD), UAD has been proved to provide a significant reduction of thrust force [19][20][21][22][23], improvements in built-up edge [19,24], burr size [19,25], tool life, and hole oversize (Amini et al, 2013). A significant reduction of drilling torque of 50%, when applying UAD for aluminum, has been found in the study of Neugebauer and Stoll [26].…”

Section: Introductionmentioning

confidence: 99%

A New Approach to Modelling the Drilling Torque in Conventional and Ultrasonic Assisted Deep-Hole Drilling Processes

Chu

Nguyen²,

Ngo

et al. 2018

Applied Sciences

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This paper presents a new approach to developing the torque model in deep hole drilling, both for conventional and ultrasonic assisted drilling processes. The model was proposed as a sum of three components: the cutting, the chip evacuation and the stick-slip torques. Parameters of the new model were carried out by applying the regression analysis technique, with the correlation values higher than 0.999. The data were collected from 36 experimental dry drilling tests, both in conventional and ultrasonic assisted cutting conditions, with the depth-to-diameter of the drilled holes of 7.5. The major advantage of the new model compared to previous models is that the new model of chip-evacuation torque has only one coefficient, thus making it easier to evaluate and compare different deep-drilling processes. The effectiveness of ultrasonic assistance in deep hole drilling was also highlighted using the proposed model. The new model is promising to predict critical depth and torque in deep hole drilling.

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Experimental analysis on autoresonant control of ultrasonically assisted drilling

Cited by 26 publications

References 15 publications

Effect of longitudinal−torsional vibration in ultrasonic-assisted drilling

Effect of longitudinal−torsional vibration in ultrasonic-assisted drilling

Modeling of autoresonant control of a parametrically excited screen machine

A New Approach to Modelling the Drilling Torque in Conventional and Ultrasonic Assisted Deep-Hole Drilling Processes

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