Relevant bibliographies by topics / Abrasives

Academic literature on the topic 'Abrasives'

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Published: 4 June 2021
Last updated: 28 July 2024

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Journal articles on the topic "Abrasives"

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Perec, Andrzej. "Disintegration and recycling possibility of selected abrasives for water jet cutting." DYNA 84, no. 203 (October 1, 2017): 249–56. http://dx.doi.org/10.15446/dyna.v84n203.62592.

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Este trabajo presentó un estudio de la desintegración abrasiva en un chorro de agua abrasivo de 400 MPa (AWJ). El tamaño y la distribución de partículas abrasivas juegan un papel importante en el mecanizado y la eficacia de corte de los chorros de agua abrasiva. Abrasivo de granate probado, comúnmente utilizado en el tratamiento con chorro de agua abrasivo y corindón. Es de interés científico observar la desintegración de estas partículas que han sido interactivas con materiales abrasivos poco comunes. El impacto del tiempo de los granos abrasivos en la pieza de trabajo es muy corto y no todo el grano en la corriente de poder hacer el trabajo de corte, debe esperar la posibilidad de recuperar el tratamiento abrasivo. Considerable importancia es el aumento en la capacidad de corte de granos triturados debido a revelar nuevos bordes de corte. Con base en un estudio de factibilidad, este documento presentará algunos resultados sobre los datos de corte obtenidos y muestra también el desgaste del tubo de enfoque utilizado, la principal parte responsable de la formación del chorro.
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Wang, Shujun, Yusheng Zhang, Shuo Meng, Yugang Zhao, and Jianbing Meng. "Investigation of Synthesis, Characterization, and Finishing Applications of Spherical Al2O3 Magnetic Abrasives via Plasma Molten Metal Powder and Powder Jetting." Micromachines 15, no. 6 (May 28, 2024): 709. http://dx.doi.org/10.3390/mi15060709.

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Magnetic abrasive finishing (MAF) is an efficient finishing process method using magnetic abrasive particles (MAPs) as finishing tools. In this study, two iron-based alumina magnetic abrasives with different particle size ranges were synthesized by the plasma molten metal powder and powder jetting method. Characterization of the magnetic abrasives in terms of microscopic morphology, phase composition, magnetic permeability, particle size distribution, and abrasive ability shows that the magnetic abrasives are spherical in shape, that the hard abrasives are combined in the surface layer of the iron matrix and remain sharp, and that the hard abrasives combined in the surface layer of the magnetic abrasives with smaller particle sizes are sparser than those of the magnetic abrasives with larger particle sizes. The magnetic abrasives are composed of α-Fe and Al2O3; the magnetic permeability of the magnetic abrasives having smaller particle sizes is slightly higher than that of the magnetic abrasives having larger particle sizes; the two magnetic abrasives are distributed in a range of different particle sizes; the magnetic abrasives have different magnetic permeabilities, which are higher than those of the larger ones; both magnetic abrasives are distributed in the range of smaller particle sizes; and AZ31B alloy can obtain smaller surface roughness of the workpiece after the grinding process of the magnetic abrasives with a small particle size.
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Han, Quan Li, and Wen Ming Zhang. "Surface Roughness and Morphology of Titanium Plate Ground with Fixed and Loose Brown Alumina Abrasives." Advanced Materials Research 126-128 (August 2010): 1019–22. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.1019.

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Titanium is a metal material which has many excellent properties; it has been widely used in many fields. In this paper, plane abrasive machining is carried out for Titanium plate. The surface roughness and morphology of Ti-plate is compared after fixed and loose abrasive machining. The experiment proved that the drop magnitude of Ra in loose abrasives machining is great larger than that in fixed abrasive when grit size is nearly equal, and the improvement of surface defect such as some directional marks, deep scratch and bits in loose abrasives machining is rapider and quicker than that in fixed abrasives during same machining time. The results of experiments indicts that loose abrasive machining is better than fixed abrasive in reducing surface roughness and improving surface morphology, since the higher density of active abrasives and machining force uniformity.
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Shuto, Takahiro, Yuichi Mine, Seicho Makihira, Hiroki Nikawa, Takanori Wachi, and Kazutoshi Kakimoto. "Alterations to Titanium Surface Depending on the Fluorides and Abrasives in Toothpaste." Materials 15, no. 1 (December 22, 2021): 51. http://dx.doi.org/10.3390/ma15010051.

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Fluoride and abrasives in toothpastes may cause corrosion and deterioration of the titanium used for implants and other prostheses. The purpose of this study was to investigate how the presence or absence and types of fluoride and abrasives affected the titanium surface texture. Brushing with toothpastes was performed on pure-titanium discs using an abrasive testing machine. Unprocessed titanium discs without brushing were used as control samples. Surface roughness, color, and gloss of titanium were measured and the differences compared with the control were analyzed. Additionally, titanium surfaces and abrasives in toothpastes were observed using a scanning electron microscope to compare the surface texture of each sample. Some toothpastes (abrasive+) significantly increased the difference in surface roughness, color, and gloss, compared with ultrapure water. Toothpaste (fluoride+/abrasive+) that had many polygonal abrasive particles led to the largest color differences and exhibited notable scratches and a larger number of contaminant- or corrosion-like black spots. In contrast, brushing with toothpaste without fluoride or abrasives (fluoride−/abrasive−) caused little change to the titanium surface. These results suggest that both fluoride and abrasives in toothpaste used for brushing may be factors that affect surface texture and corrosion resistance of titanium.
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Li, Wei, Qiu Sheng Yan, Jia Bin Lu, and Ji Sheng Pan. "Effect of Abrasives on the Lapping Performance of 6H-SiC Single Crystal Wafer." Advanced Materials Research 690-693 (May 2013): 2179–84. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2179.

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In order to remove the cutting marks on the cutting surface of 6H-SiC single crystal wafer, experiments were conducted to investigate the effect of the abrasive characteristics (types, grain size, concentration and mixed abrasives) on the lapping performance of 6H-SiC single crystal wafer, then the removal mechanism of the abrasive grains in the lapping process was studied. Results indicate that the abrasives with larger grain size and higher hardness can result in a higher material removal rate while the abrasives with smaller grain size and lower hardness can achieve a lower surface roughness value. When the concentration of the abrasives is 7.69 wt%, a good lapping effect was obtained. Lower surface roughness value Ra can be obtained with a high material removal rate by using certain proportion mixed abrasives. Selecting appropriate abrasives can obtain a high surface quality of 6H-SiC wafer with a high efficiency.
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Li, Yan, Hang Gao, and Ren Ke Kang. "Study on Removal and Embedding Mechanism of CdZnTe Using Loose Abrasive." Advanced Materials Research 24-25 (September 2007): 201–10. http://dx.doi.org/10.4028/www.scientific.net/amr.24-25.201.

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Cd1−xZnxTe (CZT) is an excellent ternary compound semiconductor. CZT is the most suitable substrate material for Hg1−yCdyTe epitaxial growth and can make the detector itself. The researchers have done a lot of works on the hard and brittle material removal mechanism in lapping process. however, no published articles are available regarding the removal mechanism and the abrasives embedding mechanism of the soft and brittle material in lapping progress .and there is its own characteristic if the hard abrasives machining the soft and brittle material in lapping progress, the objective of this paper is to build the physical model ,and divide the abrasive into four kinds of abrasives , they are two-body abrasive ,three-body abrasive ,embedded abrasive and small abrasive, and the authors analyze the effects on the material surface of the above abrasives. At last, design series of experiments, through analyzing the results and observe the surface morphology, the authors prove that the physical model is correct.
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Tsai, Feng Che, Ting Cheng Chang, Miao Yu Kuo, and Ta Chen Li. "The Investigation of Abrasive Jet Polishing on the Linear Micro-Channels Surface of SKD61 Mold Steel." Advanced Materials Research 652-654 (January 2013): 1799–804. http://dx.doi.org/10.4028/www.scientific.net/amr.652-654.1799.

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This study examined the performance of abrasive jet polishing (AJP) on SKD61 mold surfaces using wax-coated SiC abrasives fabricated by gas atomization and the comparison of surface quality achieved by revealing significant surface roughness reduced with wax-coated abrasives. The wax coating of SiC abrasives smooth the sharp surfaces of abrasive powders and provides a cushioning buffer. These two features contribute and improve the direct impact of heavy peening, thus preventing surface hardening, superficial embedment or deep scratches. Furthermore, compound additives including water wax and water were added to the wax-coated #3000 SiC abrasives at a mix proportion of 500: 1000: 1500 (water wax: wax-coated SiC: water) for polishing micro-channels surfaces. The experimental results show that the compound additives provide addition cushioning effect facilitate the sliding and grinding of abrasives, resulting in fine polishing and good surface quality. The reflection properties of both linear and curved micro-channels were much enhanced by AJP using wax-coated #3000 SiC abrasives with the compound additives.
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Niżankowski, Czesław. "History and prospects of abrasive development." Mechanik 90, no. 11 (November 13, 2017): 1003–5. http://dx.doi.org/10.17814/mechanik.2017.11.163.

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Division and classification of abrasives development periods is discussed. Abrasives of natural origin and hard and super hard synthetic abrasive currently used in the industry, are presented. The prospects of the appearance of ultra-hard abrasives in the form of hexagonal lonsdaleite and metallic hydrogen, are indicated.
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Tsai, Feng Che, Shie Chen Yang, Tsuo Fei Mao, Chi Jung Chen, and Shiou Shen Liou. "Abrasive Jet Polishing of Micro Groove Using Compound SiC Abrasives with Compound Additives." Advanced Materials Research 418-420 (December 2011): 2153–57. http://dx.doi.org/10.4028/www.scientific.net/amr.418-420.2153.

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This Study Examined the Performance of Abrasive Jet Polishing (ajp) on Skd61 Mold Surfaces Using Wax-coated Sic Abrasives Fabricated by Gas Atomization. Comparison of Surface Quality Achieved Reveals Significant Surface Roughness Reduction by Wax-coated Abrasives. the Wax Coating Not only Covers Most of the Sharp Ends of the Abrasive, Thus Making Smooth the Abrasive Surface; it Being Elastic Also Provides a Cushioning Buffer. these Two Features Contribute to Ameliorate the Direct Impact of Heavy Peening, Thus Preventing Surface Hardening, Superficial Embedment or Deep Scratches. Moreover, Compound Additives Including Water Wax and Water Were Added to the Wax-coated #3000 Sic Abrasives at a Mix Proportion of 500: 1000: 1500 (water Wax: Wax-coated Sic: Water) for Polishing Mold Surfaces of Different Forms. Results Show that the Compound Additives Provide Addition Cushioning Effect and Facilitate the Sliding and Grinding of Abrasives, Resulting in Fine Polishing and Good Surface Quality. the Reflection Property of Micro-groove Was much Enhanced by Ajp Using Wax-coated #3000 Sic Abrasives with the Compound Additives.
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Li, Jun, P. Gao, Yong Wei Zhu, B. Li, Y. L. Sun, and D. W. Zuo. "Research on Subsurface Damage After Abrasives and Fixed-Abrasive Lapping of K9 Glass." Key Engineering Materials 487 (July 2011): 253–56. http://dx.doi.org/10.4028/www.scientific.net/kem.487.253.

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Fixed-abrasive lapping (FAL) is a new machining technology and is adopted to manufacture hard brittle materials to obtain the high surface quality. In the same machining condition, K9 glasses are lapped by abrasives and fixed-abrasive, respectively. Two grain sizes of diamond abrasives are adopted in every lapping means. Differential chemical etch method (DCEM) is employed to measure the depth of subsurface damage (SSD) of different lapping means. Surface damages are compared by Microscope. The results show that the depth of SSD is 53 and 15.2μm after abrasives lapping (AL) by 40 and 28μm diamond abrasives. FAL with 40 and 28μm diamond abrasive leads to 4.5 and 3.4μm subsurface damage depth, respectively. FAL can get smaller surface damage and shallower depth of SSD than AL. And FAL can obtain the higher surface quality than AL.
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Dissertations / Theses on the topic "Abrasives"

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Potana, Sandhya Naidu. "Environmental performance of copper slag and barshot as abrasives." ScholarWorks@UNO, 2005. http://louisdl.louislibraries.org/u?/NOD,216.

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Thesis (M.S.)--University of New Orleans, 2005.
Title from electronic submission form. "A thesis ... in partial fulfillment of the requirements for the degree of Master of Science in Environmental Engineering"--Thesis t.p. Vita. Includes bibliographical references.
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Stanley, Matthew E. "The development of a management of change procedure for a process safety management covered web making operation." Online version, 1998. http://www.uwstout.edu/lib/thesis/1998/1998stanleym.pdf.

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Sangameswaran, Sivaramakrishnan. "Evaluation of Productivity, Consumption, and Uncontrolled Total Particulate Matter Emission Factors of Recyclable Abrasives." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/390.

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Dry abrasive blasting is a commonly used surface preparation operation by many process industries to clean up metallic surfaces and achieve surface finishes suitable for future adhesion. Abrasives used in this process can be recyclable or expendable. This study was undertaken to evaluate the performance of three recyclable abrasives: garnet, barshot and steel grit/shot in terms of productivity (area cleaned per unit time), consumption (amount of abrasive used per unit area cleaned) and uncontrolled total particulate matter (TPM) emission factors (in terms of mass of pollutant emitted per unit area cleaned and mass of pollutant emitted per unit mass of abrasive consumed). Though there have been various attempts in the past to evaluate the performance of these abrasives, there has not been a streamlined approach to evaluate these parameters in the commonly used range of process conditions, or to identify and model the influences of key process variables on these performance parameters. The first step in this study was to evaluate the performance of these three abrasives in blasting painted steel panels under enclosed blasting conditions and using USEPA recommended protocols. The second step was to model the influences of blast pressure and abrasive feed rate, two most critical parameters on productivity, consumption and emission factors. Two and three dimensional models were obtained using multiple linear regression techniques to express productivity, consumption and TPM emission factors in terms of blast pressure and abrasive feed rate. Barshot was found to have high productivities over all and steel grit/shot demonstrated the least emission potential at almost all of the tested pressure and feed rate conditions. The data will help fill the gaps in literature currently available for dry abrasive blasting performance. The models obtained will help industries, the research community and the regulatory agencies to make accurate estimates of the performance parameters. Estimating productivity and consumption will help industries identify best management practices by optimizing the process conditions to achieve high productivity and low consumption rates. Emission factor determination will help in reducing the emissions to the atmosphere by choosing process conditions corresponding to minimum emissions. The performance parameters once optimized can result in reduction in material, labor, energy, emission and disposal costs, lower resource utilization and hence reduction in overall life cycle costs of dry abrasive process. The developed models will help industries in making environmentally preferable purchases thereby promoting source reduction options. PM emissions estimated using the models presented here will aid studies on health risk associated with inhalation of atmospheric PM.
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Ayala, Hugo M. (Hugo Mario). "The effects of soil abrasives on rotary seal effectiveness." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/38076.

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Datar, Sanjay. "Environmental Performance of Coal Slag and Garnet as Abrasives." ScholarWorks@UNO, 2003. http://scholarworks.uno.edu/td/48.

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This study was aimed at understanding the environmental performance of two abrasives, coal slag and garnet which are commonly used by shipyards and many other industries in surface preparation of metallic surfaces. Environmental performance evaluated in this study included, (1) productivity (ft2/hr), (2) consumption and or used-abrasive generation rate (ton/2000 ft2; lb/ ft2), (3) particulate emission factors (mg/ft2; mg/lb; lb/lb; lb/kg; lb/ton). In order to achieve the study objectives, an emission test facility was built and necessary equipment and materials were procured. Blasting was performed on rusted steel panels inside the test facility and emissions were measured using EPA Source Test Method to quantify particulate emissions. By measuring the area cleaned, blasting time, and the abrasive consumed, environmental performance of coal slag and garnet was evaluated. Simple mathematical models were developed to predict performance based on feed rate and blast pressure. Garnet was observed to be more productive, less consuming, and more environmentally-friendly compared to coal slag. These study findings will valuable in reducing costs, improving productivity, and protecting the environment.
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Kambham, Kalpalatha. "Performance and Total PM Emission Factor Evaluation of Expendable Abrasives." ScholarWorks@UNO, 2006. http://scholarworks.uno.edu/td/385.

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Dry abrasive blasting is one of the most widely used methods of surface preparation. Air emissions from this process include particulate matter (PM) and metals. Spent abrasive generated from this process may be hazardous in nature. With increasing concern on health effects due to silica emissions from sand, use of alternative materials is suggested by health and regulatory agencies. The objective of this research was to evaluate performance of expendable abrasives and determine PM emission factors. Dry abrasive blasting was performed in an enclosed chamber and total PM samples were collected. Three commonly used expendable abrasives, coal slag, copper slag and specialty sand, were used to evaluate cleaner alternatives. Blast pressure and abrasive feed rate, two important process conditions were varied to study their effect on performance of an abrasive. Productivity, consumption and emission factors (performance parameters) were calculated and their variation with pressure and feed rate was evaluated. Two dimensional and three dimensional predicted models were developed to estimate the performance at intermediate blast pressure and feed rate conditions. Performance of the three abrasives was compared with respect to emission potential, productivity and consumption. Emission factors developed in this research will help in accurate estimation of total PM emissions and to select cleaner abrasives and optimum process conditions that will results in minimum emissions and reduced health risk. The productivity and consumption models will help is estimating life cycle costs including material cost, equipment cost, energy cost, labor costs, waste disposal cost, and compliance costs. Consumption models will also help in determining the quantity of spent abrasive generated, identify abrasives with lower material consumption, and identify process conditions that generate minimum spent abrasives. In addition, these models will help industries in making environmentally preferable purchasing (EPP), which results in pollution prevention and cost reduction.
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Silvadasan, Xavier. "Environmental performance of steel grit and specialty sand as abrasives." ScholarWorks@UNO, 2004. http://louisdl.louislibraries.org/u?/NOD,175.

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Thesis (M.S.)--University of New Orleans, 2004.
Title from electronic submission form. "A thesis ... in partial fulfillment of the requirements for the degree of Master of Science in the Department of Civil and Environmental Engineering."--Thesis t.p. Vita. Includes bibliographical references.
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Johnson, James Ballard. "Characterization of Optical Surface Grinding using Bound and Loose Abrasives." Diss., The University of Arizona, 2011. http://hdl.handle.net/10150/203478.

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Large optical systems fabrication is a demanding task due to the tight requirements and big scales. To make mirrors up to 8.4m in diameter necessitates technological development in materials, tooling, and metrology. These advancements are designed to not only produce optics on a near-unheard of scale, but to improve fabrication methods with each piece.For an optical surface to be properly polished, the amount of material removed during polishing must be greater than the volume of damage left behind by the grinding process. Mixed-mode grinding, which combines bound abrasives with a compliant binder material, is a valuable tool at this stage as it creates less damage while maintaining a fast and uniform cutting rate than traditional loose abrasive grinding.These materials are challenging for large optical surfaces due to the honeycomb structures used to lightweight the mirrors. Development is done to adapt the abrasive to handle the very low pressures and speeds required to avoid imprinting structure on the optical surface.We take a comprehensive approach in measuring mixed-mode behavior using 3M Trizact™. Prior works on bound abrasives have focused on specific properties: removal rates, subsurface damage, etc. None have yet to look at the entire scope of the material and its benefits. These properties will be analyzed along with different behaviors regarding surface scattering, Twyman effect bending moments, glazing, manufacturing expenses, and failure mechanisms. This comprehensive understanding of the abrasive allows manufacturers to create better grinding schedules and reduce overall expenses in fabrication.Trizact shows up to a three times faster removal rate while producing 30\% less subsurface damage than loose abrasives of similar size. Additionally, the surface has scatters less light which can be adapted through changes in processing to create a specular reflection for optical surface metrology.Based on our findings, this type of abrasive integrates into current optical fabrication processes as a pre-polishing material. Here, the transition to these abrasives becomes cost effective by rapidly eliminating damage created during the generating of the surface and reducing the amount of polishing required.
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ZOPPE, CARLA C. C. "Estudo do metodo radiometrico para avaliacao da abrasividade de dentifricios." reponame:Repositório Institucional do IPEN, 1997. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10672.

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Dissertacao (Mestrado)
IPEN/D
Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP
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James, Sagil. "Study of Vibration Assisted Nano Impact-Machining by Loose Abrasives (VANILA)." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1427962995.

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Books on the topic "Abrasives"

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Borkowski, Józef A. Uses of abrasives and abrasive tools. Chichester, West Sussex: Ellis Horwood, 1992.

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1934-, Szymański Andrzej, ed. Uses of abrasives and abrasive tools. New York: Ellis Horwood, 1992.

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DeSapio, Vincent. Abrasives. Washington, DC: Office of Industries, U.S. International Trade Commission, 1995.

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United States. Bureau of Mines. Manufactured abrasives. Washington, D.C: U.S. Department of the Interior, Bureau of Mines, 1993.

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Giese, Edward. New abrasives and abrasives products, technologies, markets. Norwalk, CT: Business Communications Co., 1997.

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Jackson, Mark J., and J. Paulo Davim, eds. Machining with Abrasives. Boston, MA: Springer US, 2011. http://dx.doi.org/10.1007/978-1-4419-7302-3.

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Hayes, Teresa L., Rebecca L. Friedman, and Debra A. Celinski. Abrasives products & markets. Cleveland: Freedonia Group, 2000.

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Jackson, Mark J. Machining with Abrasives. Boston, MA: Springer Science+Business Media, LLC, 2011.

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National Institute for Occupational Safety and Health, ed. SANCAP Abrasives, Inc.: Alliance, Ohio. [Atlanta, Ga.?]: U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, 1994.

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Kidger, A. Shanks, grindery & abrasives: Module 38. Rossendale: Footwear OPEN TECH Unit, 1986.

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Book chapters on the topic "Abrasives"

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Asami, Masakatsu, and Michael Santorelli. "Abrasives." In Phenolic Resins: A Century of Progress, 307–43. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-04714-5_13.

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Plewig, Gerd, and Albert M. Kligman. "Abrasives." In ACNE and ROSACEA, 680. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-97234-8_90.

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Linke, Barbara. "Abrasives." In Life Cycle and Sustainability of Abrasive Tools, 7–61. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-28346-3_2.

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Huang, Han, Libo Zhou, and Ling Yin. "Polishing Using Flexible Abrasive Tools and Loose Abrasives." In Machining with Abrasives, 345–84. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-7302-3_8.

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Duwell, E. J. "Coated Abrasives." In Handbook of Modern Grinding Technology, 261–81. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4613-1965-8_11.

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Zimmer, William F. "Bonded Abrasives." In Handbook of Adhesives, 664–70. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0671-9_39.

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Gaeta, Anthony C. "Coated Abrasives." In Handbook of Adhesives, 671–77. Boston, MA: Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0671-9_40.

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Jackson, Mark J., Grant M. Robinson, M. D. Whitfield, Luke J. Hyde, Frank J. Underdown, Htet Sein, and Waqar Ahmed. "Nanogrinding with Abrasives." In Machining with Nanomaterials, 347–69. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19009-9_13.

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Jackson, Mark J., and Michael P. Hitchiner. "Abrasive Tools and Bonding Systems." In Machining with Abrasives, 1–77. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-7302-3_1.

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Jackson, Mark J. "Heat Treatment and Performance of Vitrified Grinding Wheels." In Machining with Abrasives, 79–130. Boston, MA: Springer US, 2010. http://dx.doi.org/10.1007/978-1-4419-7302-3_2.

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Conference papers on the topic "Abrasives"

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Tokoroyama, Takayuki, Hiroaki Takeno, Noritsugu Umehara, Motoyuki Murashima, and Shogo Chiba. "The Proposal of Two Different-Sized Abrasives to Shorten Polishing-Process-Time and Reduce Manufacturing Cost." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8607.

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Abstract Polishing manufactures use abrasives such as diamond or other hard materials to flatten several materials. Generally, diamond abrasive is most popular and it is costly. Although, diamond abrasives are costly, manufacturer have to use it to reduce surface roughness such as high hardness ceramics and others. In the polishing process, it is unpopular to retrieve those abrasives from reservoir of after-using them. Therefore, using diamond abrasives account for majority of processing cost. One of the concept to overcome the cost problem, it is suggested that reducing high-cost diamond abrasives and replacing cheap and soft abrasives can reduce processing-cost. In this study, to reveal the possibility of such two different-sized abrasives polishing process, polishing tests were conducted to unearth an effect of two-hardness-abrasive polishing technique to a glass disk on reducing surface roughness. An average diameter of 127 μm GC, and 1.0 μm diamond abrasive were prepared as concept abrasives. As a result, the arithmetic mean roughness of the glass quickly decreased in the case of using 127 μm GC abrasive with 1.0 μm diamond abrasive compared to only GC or only diamond abrasives.
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Bhagavat, Milind, and Imin Kao. "Computational Model for Free Abrasive Machining of Brittle Silicon Using a Wiresaw." In ASME 1999 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/imece1999-0913.

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Abstract The present paper deals with physics based computational modeling of the wiresaw Free Abrasive Machining (FAM). The wiresaw is used to slice large diameter wafers of predominantly brittle semi-conductors such as silicon. The wiresawing model proposed in the present paper involves cutting action by ‘floating’ abrasives. It is proposed that the abrasive carrying slurry forms a film in the cutting zone by an elasto-hydrodynamic action. Finite Element Analysis shows this film to be in general thicker than the average abrasive size. This signifies a ‘float’ machining condition, wherein there is no direct pressing of abrasives by the wire. Typical rolling and indenting of abrasives under such free body abrasion environment is supported by hydrodynamic shear and pressure respectively. The abrasive is assumed to remove material by typical indentation fracture. Finite element analysis of stresses underneath an indenting abrasive shows that cracks leading to chipping occur only during unloading of indented abrasives (during rolling). The volume of the chip removed in a single indentation is proportional to the volume of plastic zone underneath the indenter. We integrate the elasto-hydrodynamic model and the single abrasive indentation model into a complete representative model of wiresawing.
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Duong, Nick H., J. Ma, and Shuting Lei. "FEM Investigation of the Effects of Impact Speed and Angle of Impacts of Abrasive in the Vibration Assisted Nano Impact Machining by Loose Abrasives." In ASME 2017 12th International Manufacturing Science and Engineering Conference collocated with the JSME/ASME 2017 6th International Conference on Materials and Processing. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/msec2017-3043.

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In this paper, the commercial FEM software package Abaqus is employed to model the novel nanomachining process, Vibration Assisted Nano Impact machining by Loose Abrasives (VANILA), which combines the principles of vibration-assisted abrasive machining and tip-based nanomachining to conduct nano abrasive machining of hard and brittle materials. In this novel nanomachining process, an atomic force microscope (AFM) is used as a platform and the nano abrasives injected in slurry between the workpiece and the vibrating AFM probe impact the workpiece and result in nanoscale material removal. Diamond particles are used as the loose abrasives. The effects of impact speed, angle of impacts, and the frictional coefficient between the workpiece and abrasives are investigated using Abaqus. It is found that the impact speed, impact angle, and frictional coefficient between the silicon workpiece and nanoabrasives have big influence on the nanocavity’s size and depth.
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Sran, Lakhvir Singh, Sehijpal Singh Khangura, and Amarjit Singh. "Nano Finishing of Brass Tubes by Using Mechanically Alloyed Magnetic Abrasives." In ASME 2012 International Manufacturing Science and Engineering Conference collocated with the 40th North American Manufacturing Research Conference and in participation with the International Conference on Tribology Materials and Processing. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/msec2012-7264.

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With advancement of technology, finely finished surface is one of the major requirements of modern industry. Fine machining with conventional edged tools is uneconomical and sometimes impossible. Magnetic Abrasive Finishing (MAF) is one promising process which is able to remove the material at micro/nano from metallic and non metallic surfaces. The magnetic abrasives play vital role in MAF. Literature reveals different techniques such as sintering, plasma, chemical, etc. for manufacturing of bonded magnetic abrasives. In the present paper, the bonded magnetic abrasives prepared by a new technique called mechanical alloying have been successfully used for the internal finishing of the brass tubes. After rough boring operation, the inner surface of the tubes is finely finished by newly developed magnetic abrasives. Best surface finish obtained by using these magnetic abrasives is of the order of 9 nm.
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Badisch, E., P. Geiderer, R. Polak, and F. Franek. "Design of Abrasion Resistant Surfaces by Textures on Macroscopic Size." In World Tribology Congress III. ASMEDC, 2005. http://dx.doi.org/10.1115/wtc2005-63884.

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Although abrasive wear is a predominant type of wear in almost all fields of industry, it is particularly relevant to the field of mining and mineral processing. This wear mechanism is mainly influenced by the abrasive particle (e.g. hardness, size, shape, mass), the wear kinematics (impact angle, impact velocity), and also by the worn material itself (e.g. surface, structure, hardness). Today, a lot of work is done to develop systems which are resistant against wear caused by mineral abrasives. One goal for higher abrasion resistance is the use of macroscopic surface textures which hinder the abrasive particles from hitting unprotected surface areas (especially for dry, coarse abrasives) or force the formation of surface adherent mineral embedment which leads to a self-protection effect (especially for fine, wet type of abrasives). However, there is a serious lack of systematic and scientific knowledge for the design of abrasion resistant surfaces. The aim of this study was to evaluate the efficiency of macroscopic surface textures on their ability of minimizing abrasive attack, finally with the purpose to establish design rules for abrasion resistant surfaces. Profile geometry, profile distribution and surface arrangements were investigated on the wear protecting properties. It could be observed that the surface protection factor against abrasion can be adjusted by distribution and surface coverage. A strong influence of the grain size of the abrasives used on the wear behavior was observed.
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Bhagavat, Milind, Fuqian Yang, and Imin Kao. "Elasto-Plastic Finite Element Analysis of Indentations in Free Abrasive Machining." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-1097.

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Abstract Free abrasive machining (FAM) using a wiresaw is emerging as a state of the art technology for slicing large diameter semiconductor wafers. Material removal in a FAM environment is known to be by rolling and indenting of abrasives into the cut media. Therefore, indentation by abrasives in the slurry is the single most important mechanism in wiresawing process. This paper deals with the importance of abrasive shape in material removal during FAM. To achieve this objective, indentation by conical rigid abrasives of different included angles has been investigated using finite element method (FEM). Typical indentation fracture involving median, radial and transverse cracking has been explained to the maximum level of sophistication attainable using static stress analysis. Some industrially relevant results pertaining to FAM in general and wire-sawing in particular have been proposed.
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Zhou, Yi-Yang, David J. Quesnel, and Paul D. Funkenbusch. "Assessment of Microgrinding Tool Topography Using Optical Profilometry." In Optical Fabrication and Testing. Washington, D.C.: Optica Publishing Group, 1996. http://dx.doi.org/10.1364/oft.1996.ofa.6.

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Because of the complicated interactions between the tool and workpiece during the grinding process, tool topography is a useful resource for understanding the process [1-2]. Issues that can be understood by tool topography include: overall wheel surface profile, abrasive concentration on the wheel surface, effective number of cutting points, fracture and debonding of abrasives, protrusion height of abrasives, and tool wear mechanisms [2-7].
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Arrabiyeh, Peter A., Benjamin Kirsch, and Jan C. Aurich. "Development of Micro Pencil Grinding Tools via an Electroless Plating Process." In ASME 2016 11th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/msec2016-8636.

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This paper presents the development process of a new coating method for Micro pencil grinding tools (MPGT). MPGTs, applied for micro grinding, consist of a base body, abrasives and a metallic bond. The manufacturing process of these micro tools presents two challenges. The first being in finding a method to embed the abrasives with a uniform grit distribution and the second finding the correct parameters, required for a bond with adequate grit retention forces. In this research an electroless plating process is presented. Both the abrasive grit distribution method and the plating parameters will be presented in this paper.
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Rostoker, David. "Nanometer Sized Alpha Alumina Polishing Slurry." In Optical Fabrication and Testing. Washington, D.C.: Optica Publishing Group, 1994. http://dx.doi.org/10.1364/oft.1994.pd1.

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Seeded Gel (SG) abrasives have made a major impact on traditional abrasive applications. The structure of SG is one of 100 to 300 nm crystallites tightly sintered to a zero porosity polycrystalline α - alumina body.
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Tani, Yasuhiro, Jun'ichi Ikeno, and Akihito Fukutani. "Damage-free grinding using ultrafine abrasives." In London - DL tentative, edited by Alan H. Lettington. SPIE, 1990. http://dx.doi.org/10.1117/12.22337.

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Reports on the topic "Abrasives"

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PETERSON BUILDERS INC STURGEON BAY WI. Selection of Blasting Abrasives -- Data Tables (User's Guide). Fort Belvoir, VA: Defense Technical Information Center, April 1998. http://dx.doi.org/10.21236/ada445760.

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Andrews, P. R. A. Major abrasives - garnet, industrial diamond, silicon carbide and fused alumina. Natural Resources Canada/CMSS/Information Management, 1991. http://dx.doi.org/10.4095/328634.

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Andrews, P. R. A. Minor abrasives - corundum, emery, diatomite, pumice, volcanic ash and staurolite. Natural Resources Canada/CMSS/Information Management, 1991. http://dx.doi.org/10.4095/328636.

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Krogstad, Eirik. Testing of Alternative Abrasives for Water-Jet Cutting at C Tank Farm. Office of Scientific and Technical Information (OSTI), August 2013. http://dx.doi.org/10.2172/1165334.

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Pepper, L. D. Massachusetts Beryllium Screening Program for Former Workers of Wyman-Gordon, Norton Abrasives, and MIT/Nuclear Metals. Office of Scientific and Technical Information (OSTI), May 2008. http://dx.doi.org/10.2172/928475.

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Peart, J. W. Prototype Mineral Abrasive Reclaimer: Shipyard Operation. Fort Belvoir, VA: Defense Technical Information Center, March 1987. http://dx.doi.org/10.21236/ada444175.

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Archibald, K. E. Liquid abrasive pressure pot scoping tests report. Office of Scientific and Technical Information (OSTI), January 1996. http://dx.doi.org/10.2172/206377.

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Hovanski, Yuri, Michael E. Dahl, and Ralph E. Williford. Fatigue Testing of Abrasive Water Jet Cut Titanium. Office of Scientific and Technical Information (OSTI), June 2009. http://dx.doi.org/10.2172/992379.

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Ives, L. K. Abrasive wear by diesel engine coal-fuel and related particles. Office of Scientific and Technical Information (OSTI), September 1994. http://dx.doi.org/10.2172/10188975.

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McKnight, Mary E., Dale P. Bentz, and Willard Roberts. Measuring the extent of rust on steel after abrasive blasting:. Gaithersburg, MD: National Institute of Standards and Technology, 1990. http://dx.doi.org/10.6028/nist.ir.90-4257.

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