Ultrasonic Machining
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Effect of Cold Work on Cavitation Resistance of an Austenitic Stainless Steel Coating
Abstract Machining procedures of welding deposits are usual and result on cold work hardened surfaces. The cold work effect on cavitation erosion of an austenitic stainless steel surface is assessed. FeCrMnSiB coatings were processed by PTA on AISI 304 plates. Specimens were grouped as the cold work deformed surface (CWHS) and the undeformed polished surface
Mat. Res.. Publicado em: 01/08/2016
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2. Modelagem por elementos finitos do sistema de amplificaÃÃo de um equipamento de usinagem por abrasÃo ultrassonora
Este trabalho estuda o sistema de amplificaÃÃo de onda de uma mÃquina de usinagem por abrasÃo ultrassonora por meio de modelos de elementos finitos implementados nos programas computacionais MSC Patran e ANSYS. O sistema à constituÃdo por um amplificador fixado ao gerador de ondas de 20 kHz, um amplificador intercambiÃvel de perfil exponencial (sonotr
Publicado em: 2009
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3. An experimental study on ultrasonic machining of pure titanium using designed experiments
In the present research work, the effect of several process parameters on the machining characteristics of pure titanium (ASTM Grade-I) has been reported. The machining characteristics that are being investigated are tool wear rate and the quality of the machined surface in terms of the surface finish. The mechanism of material removal was has also been corr
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2008-09
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4. Development of an automatic mechanism to cut piezoelectric ceramics using abrasive wire. / Desenvolvimento de um mecanismo automático de corte por fio abrasivo de cerâmicas piezelétricas.
The objective of this work is to describe one great and simple mechanism that is capable of machining PZT ceramic by wear. That mechanism will be used to produce piezocomposites transducers more easily by the "Dice and Fill" method. This work also explains how the ceramic material can be worn and which variables are important in this wear. It is also present
Publicado em: 2008
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5. Characterization of growth sectors in synthetic quartz grown from cylindrical seeds parallel to [0001] direction
In the present study, the morphology and the impurity distribution were investigated in growth sectors formed around the [0001] axis of synthetic quartz crystals. Plates containing cylindrical holes and cylindrical bars parallel to [0001] were prepared by ultrasonic machining and further used as seed-crystals. The hydrothermal growth of synthetic quartz was
Materials Research. Publicado em: 2004-06
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6. A comparative study on ultrasonic machining of hard and brittle materials
Precision abrasive processes are commonly employed to machine glasses, single crystals and ceramic materials for various industrial applications. Until now, precision machining of hard and brittle solids are poorly investigated in Brazil from the fundamental and applied point of views. Taking into account the major technological importance of this subject to
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2004-03