نتایج جستجو برای: abrasives

تعداد نتایج: 328  

1999

Issue: Processed recycled glass has been sold as an abrasive blasting medium under several brand names in different parts of the United States. However, limited public information is available regarding the performance of finely sized crushed glass in abrasive applications because manufacturers have developed their own proprietary data. Historically, the predominant material used for abrasive b...

Journal: :Acta odontologica latinoamericana : AOL 2010
Cresus V D Gouvêa Karin Weig Thales R M Filho Renata N Barros

The properties of composite resin for dental fillings were improved by development, but its weakness continues to be its wear strength. Several tests have been proposed to evaluate wear in composite resin materials. The aim of this study was to verify how polishing and the type of abrasive can influence the wear rate of composite resin. The test was carried out on two groups. In one group we em...

1997
Jaydeep K. Sinha Hareesh V. Tippur

Jaydeep K. Sinha Hareesh V. Tippur Auburn University Department of Mechanical Engineering 202 Ross Hall Auburn, Alabama 36849-5341 E-mail: [email protected] Abstract. A real-time, full-field, noncontacting infrared Twyman-Green interferometer for performing deformation measurements has been developed. The choice of the wavelength offers the advantage of using the interferometer with struct...

2014
T. C. Kanish P. Kuppan S. Narayanan

In this paper, an attempt has been made to characterize the surface texture generated, during Magnetic Field Assisted Abrasive Finishing (MFAAF) of SS316L material. The changes in surface texture generated are studied by using surface roughness profiler, Atomic Force Microscopy (AFM) and Scanning Electron Microscopy (SEM). The deep cutting marks left by grinding process have been removed and re...

Journal: :Journal of oral science 2015
Hani M Nassar Jeffrey A Platt

The effect of brushing with two abrasive levels on the fluoride release of high-viscosity glass ionomers (GIs) was investigated. Forty-eight GI discs were fabricated and randomly assigned to one of the four groups. Treatments, performed for 30 days, included exposure to a carboxymethylcellulose (CMC) solution without fluoride (CMC-F), CMC with 275 ppm fluoride (CMC+F), CMC with fluoride plus br...

Journal: :Work 2012
João Barbosa Neto Eduardo Aparecido Centeio Fernando de Sampaio Siqueira Rosimeire Simprini Padula

The Manual Handling of Loads is an activity present in virtually all production system, when developed without ergonomic principles of design and sizing can generate several instances of discomfort and musculoskeletal disorders. This work was carried out to measure, set limits and risks and guide specifications for the cargo handling carts in a specific company, tracing the anthropometric profi...

2017
Huanwu Sun Juan Wang Andrew Longstaff Fengshou Gu

To implement an automated fluid magnetic abrasive (FMA) finishing process, an online monitoring scheme is proposed based on characterising acoustic emission (AE) signals in this paper. According to the material removal mechanisms during the FMA finishing process, the AE generation and characteristics are predicted analytically to be dominated by the interactions between the surface asperities a...

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