Computer-aided design of acoustic horns for ultrasonic machining using finite-element analysis

Amin, Saqib; Ahmed, M.H.M.; Youssef, Hamdy M.

doi:10.1016/0924-0136(95)02015-2

Cited by 134 publications

(75 citation statements)

References 1 publication

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“…This method has been used before in HCI for creating mid-air crosses [35], floating particle displays [54], paths [36], charts [37] or to manipulate tiny particles with wearables [30]. Those systems typically require more powerful and cumbersome sound emitters [3,15], like Langevin horns [2].…”

Section: Acoustic Levitationmentioning

confidence: 99%

TastyFloats

Thanh

Marzo

Ablart

et al. 2017

Proceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces

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We present two realizations of TastyFloats, a novel system that uses acoustic levitation to deliver food morsels to the users' tongue. To explore TastyFloats' associated design framework, we first address the technical challenges to successfully levitate and deliver different types of foods on the tongue. We then conduct a user study, assessing the effect of acoustic levitation on users' taste perception, comparing three basic taste stimuli (i.e., sweet, bitter and umami) and three volume sizes of droplets (5µL, 10µL and 20µL). Our results show that users perceive sweet and umami easily, even in minimal quantities, whereas bitter is the least detectable taste, despite its typical association with an unpleasant taste experience. Our results are a first step towards the creation of new culinary experiences and innovative gustatory interfaces.

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Section: Acoustic Levitationmentioning

confidence: 99%

TastyFloats

Thanh

Marzo

Ablart

et al. 2017

Proceedings of the 2017 ACM International Conference on Interactive Surfaces and Spaces

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“…Circulating high flow and fresh slurry will enhanced the surface quality [45,61,63]. SR decrease with decrease in power rating and grit size [7,18,19,21,24,38,54]. It also observed, temperature of slurry is most significant factor among all the considered input parameters [15,29,37,49,61,62].…”

Section: Resultsmentioning

confidence: 94%

Mathematical Modeling for Material Removal and Optimization of Ultrasonic Drilling of Polycarbonate and Acrylic Glass for Surface Roughness by GRA Approach

Singh¹

2017

IJMEA

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Abstract:Polycarbonate bullet proof and acrylic heat resistant glasses are used as the functional material in many industrial application. In automobile industries, banks and cabins, polycarbonate bullet proof glass has been used for security purpose. Similarly, acrylic heat resistant glass is used in furnace, microwaves, space craft and airplane applications. In this experimental research paper, Taguchi modal and Grey relational analysis are utilized for the ultrasonic drilling in these materials. For experimentation, input parameters are concentration, abrasive, grit size, power rating, hydrofluoric acid and tool materials. Output parameters are material removal rate, tool wear rate and surface roughness. In which, surface roughness is most significant output parameter, because it describe accuracy of the process. Through optimization analysis, Taguchi modal suggest that 40% abrasive concentration, mixture of (Alumina, Silicon carbide and Boron carbide) abrasive in 1:1:1, 600 grit of abrasive and 1.5% hydrofluoric acid gives best results for drilling in polycarbonate bullet proof glass material. Similarly, in acrylic heat resistant glass, mixture of Silicon carbide and Boron carbide (1:1), 600 grit abrasive and 1% hydrofluoric acid gives the optimum results. Concentration of slurry, abrasive grit size and hydrofluoric acid are the most significant parameters for ultrasonic drilling in both materials. Through Grey relational analysis the surface roughness is improved by 40% and 48% in polycarbonate (UL-752) and acrylic (BS-476) glass respectively.

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“…한편, 용접소재와 직접 접촉하여 용접소재를 고정하고 진동을 전 달하는 팁(Tip)의 크기나 형상도 용접성능에 큰 영향을 미칠 것으 로 판단되나 이에 관한 연구는 거의 이루어지지 않고 있다. 가장많이 사용되고 있다 [5][6][7][8] . 본 연구에서 사용된 혼은 반파장 혼이며 혼의 길이는 균일 단면 봉의 종진동 방정식으로부터 구하였다 [8] .…”

Section: 초음파 용접에서 핵심적인 요소는 혼(Horn)으로 이는 사용자가 원하는 수준의 진폭을 얻을 수 있도록 진동을unclassified

Area of Horn's Tip and Weldability of Cu Sheets

Jang¹,

Kang²,

Park³

2014

Journal of manufacturing engineering & technology

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ARTICLE INFO ABSTRACTArticle history:In this study, a 20,000Hz ultrasonic horn was designed and fabricated using a finite element analysis. The horn's resonate frequency was 19,991Hz, and the harmonic response frequency was 20,000Hz. In order to observe the developed horn's performance, 4,000 pieces of displacement data were obtained using an optical sensor and were analyzed using a fast Fourier transform. Finally, the developed horn's resonate frequency was found to be 19,992Hz. The effect of the tip area of the developed horn on the weldability of a Cu sheet was experimentally investigated. It was found that the welding strengths of specimens welded using a small tip area were generally higherthan those of specimens welded using a large tip area.

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Computer-aided design of acoustic horns for ultrasonic machining using finite-element analysis

Cited by 134 publications

References 1 publication

TastyFloats

TastyFloats

Mathematical Modeling for Material Removal and Optimization of Ultrasonic Drilling of Polycarbonate and Acrylic Glass for Surface Roughness by GRA Approach

Area of Horn's Tip and Weldability of Cu Sheets

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