Study of Internal Magnetic Field Assisted Finishing for Copper Tubes with MRF (Magneto-Rheological Fluid)-Based Slurry

This research studied the internal magnetic field assisted finishing with MRF (Magneto-rheological Fluid)-based slurry for copper tubes.MRF-based slurry that included diamond abrasives was applied to the internal magnetic field assisted finishing for copper tubes and the finishing characteristics were studied. The results showed that the exciting current and the abrasive size changed the finishing characteristics of MRF-based slurry. This finishing process creates a smooth mirror finished surface with few directional cutting marks on the surface of the copper tube.

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Study of Internal Magnetic Field Assisted Finishing for Copper Tubes with MRF (Magneto-Rheological Fluid)-Based Slurry

Advances in Abrasive Technology IX - Key Engineering Materials ◽

10.4028/0-87849-416-2.249 ◽

2007 ◽

pp. 249-254 ◽

Cited By ~ 1

Author(s):

T. Sato ◽

H. Yamaguchi ◽

Takeo Shinmura ◽

T. Okazaki

Keyword(s):

Magnetic Field ◽

Internal Magnetic Field ◽

Magneto Rheological

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Study on Internal Magnetic Field Assisted Finishing Process Using a Magnetic Machining Jig

Advances in Abrasive Technology VIII - Key Engineering Materials ◽

10.4028/0-87849-974-1.281 ◽

2005 ◽

pp. 281-286

Author(s):

Y. Zou ◽

Takeo Shinmura

Keyword(s):

Magnetic Field ◽

Internal Magnetic Field ◽

Finishing Process

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Analysis of magneto rheological elastomers for energy harvesting systems

International Journal of Applied Electromagnetics and Mechanics ◽

10.3233/jae-209350 ◽

2020 ◽

Vol 64 (1-4) ◽

pp. 439-446

Author(s):

Gildas Diguet ◽

Gael Sebald ◽

Masami Nakano ◽

Mickaël Lallart ◽

Jean-Yves Cavaillé

Keyword(s):

Magnetic Field ◽

Energy Harvesting ◽

Shear Strain ◽

Magnetic Induction ◽

Magnetic Particles ◽

Homogeneous Magnetic Field ◽

Electrical Signal ◽

Harvesting Systems ◽

Dc Bias ◽

Magneto Rheological

Magneto Rheological Elastomers (MREs) are composite materials based on an elastomer filled by magnetic particles. Anisotropic MRE can be easily manufactured by curing the material under homogeneous magnetic field which creates column of particles. The magnetic and elastic properties are actually coupled making these MREs suitable for energy conversion. From these remarkable properties, an energy harvesting device is considered through the application of a DC bias magnetic induction on two MREs as a metal piece is applying an AC shear strain on them. Such strain therefore changes the permeabilities of the elastomers, hence generating an AC magnetic induction which can be converted into AC electrical signal with the help of a coil. The device is simulated with a Finite Element Method software to examine the effect of the MRE parameters, the DC bias magnetic induction and applied shear strain (amplitude and frequency) on the resulting electrical signal.

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Physical Interpretations of Internal Magnetic Field Influence on Processes in Tribocontact of Textured Dimple Surfaces

Journal of Nano- and Electronic Physics ◽

10.21272/jnep.11(5).05013 ◽

2019 ◽

Vol 11 (5) ◽

pp. 05013-1-05013-5

Author(s):

V. Ye. Marchuk ◽

◽

M. V. Kindrachuk ◽

V. I. Mirnenko ◽

R. G. Mnatsakanov ◽

...

Keyword(s):

Magnetic Field ◽

Internal Magnetic Field ◽

Field Influence

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Experimental investigations on finishing of a brass specimen by magneto-rheological honing technique

Journal of Micromanufacturing ◽

10.1177/25165984211015785 ◽

2021 ◽

pp. 251659842110157

Author(s):

Chinu Kumari ◽

Sanjay Kumar Chak

Keyword(s):

Magnetic Field ◽

Process Parameters ◽

Surface Finish ◽

Rotational Speed ◽

Field Application ◽

Surface Finishing ◽

Experimental Investigations ◽

Significant Parameter ◽

Magnetizing Current ◽

Magneto Rheological

Magneto-rheological abrasive honing (MRAH) is an unconventional surface finishing technique that relies on abrasives mixed with a unique finishing fluid, which changes its characteristics on magnetic field application. This process imparts nanometric-level surface finish with a significant amount of uniformity. Rotating motion of the workpiece and continuous reciprocation of the finishing fluid in the MRAH process are recognized as the major aspects for adopting this process in finishing non-magnetic materials. The finishing obtained through the MRAH process relies on the workpiece’s material properties and process parameters such as concentration of abrasives in finishing fluid, rotational speed of the workpiece, and magnetic field strength/magnetizing current. To study the efficacy of MRAH process, a parametric study was conducted by performing few experiments on a brass workpiece. Design of experiment approach was adopted to plan the experiments, and the effect of different values of magnetizing current, the concentration of abrasives, and rotational speed on the surface finish were analyzed through the application of analysis of variance (ANOVA). From ANOVA, the rotational speed was found as the most significant parameter with a contribution of 48.90% on % reduction in roughness value (%∇Ra). Around 57% of roughness reduction was obtained at the optimized value of process parameters.

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