Study on the formation mechanism of the magnetic abrasive particle layer on the surface of saw wire in magnetic induction-free abrasive wire sawing

2018 ◽  
Vol 327 ◽  
pp. 163-169 ◽  
Author(s):  
Chunyan Yao ◽  
Wei Zhang ◽  
Kuangwei Li ◽  
Xuefeng Xu ◽  
Hejie Li
Keyword(s):  
Formation Mechanism ◽  
Magnetic Induction ◽  
Abrasive Particle ◽  
Particle Layer ◽  
Free Abrasive

Investigations on the trajectories of magnetic abrasive grains in magnetic induction-free abrasive wire sawing

2016 ◽  
Vol 419 ◽  
pp. 317-324 ◽  
Author(s):  
Wei Zhang ◽  
Chunyan Yao ◽  
Chen Tang ◽  
Tengwei Qiu ◽  
Xuefeng Xu
Keyword(s):  
Magnetic Induction ◽  
Abrasive Grains ◽  
Free Abrasive

Effect of Free Abrasive Particle in Gasbag Polishing Technique

2009 ◽  
Vol 69-70 ◽  
pp. 83-87
Author(s):  
Ming Sheng Jin ◽  
Shi Ming Ji ◽  
Li Zhang ◽  
Xian Zhang ◽  
Ya Qi Shen
Keyword(s):  
Material Removal ◽  
Abrasive Particle ◽  
General Distribution ◽  
Material Removal Mechanism ◽  
Polishing Process ◽  
Mould Surface ◽  
Movement Characteristic ◽  
Distribution State ◽  
Polishing Efficiency ◽  
Free Abrasive

Free abrasive particle plays a crucial role in material removal and quality improvement of curved surface mould. In order to observe and investigate the general distribution state, fractal dimension and movement characteristic of abrasive particle in gasbag polishing process better, an abrasive particle stroboscopic photography system is established and polishing experiment is carried out. The abrasive particle contacts with not only the rubber gasbag enwrapped by polishing cloth full of mesh-like structures, but also the mould surface. Contact analysis of abrasive particle including the discussions of contact state, material removal mechanism and advantage of precession polishing is helpful to hold the optimal polishing process parameters combination and establish ideal abrasive particle field for higher polishing efficiency and more well-proportioned surface quality.

scholarly journals Statistical model of metal removal removed from product surface under the influence of abrasive particle flow

2020 ◽  
Vol 210 ◽  
pp. 08005
Author(s):  
Georgi Tzordanidi ◽  
Oksana Pyatnitzkaya ◽  
Elena Fisunova ◽  
Tatyana Lavrenova ◽  
Olga Baryshnikova
Keyword(s):  
Statistical Model ◽  
Metal Removal ◽  
Abrasive Particle ◽  
Particle Flow ◽  
Particle Impact ◽  
Metal Volume ◽  
Product Surface ◽  
Plastic Displacement ◽  
Random Nature ◽  
Free Abrasive

A model is proposed that describes the forming processes of metal volume removed from the product surface during processing with a free abrasive flow, taking into account the random nature of abrasive particle impact on the surface and the possibility of implementing acts of elastic and plastic displacement of material or micro-cutting.

Analysis of magneto rheological elastomers for energy harvesting systems

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.

Research on expanding the range of reproduction of magnetic flux density of the DC field of the state primary standard GET12-2011

2020 ◽  
pp. 3-7
Author(s):  
Vladlen Ya. Shifrin ◽  
Denis I. Belyakov ◽  
Alexander E. Shilov ◽  
Denis D. Kosenko
Keyword(s):  
Magnetic Flux ◽  
Magnetic Induction ◽  
Frequency Conversion ◽  
Magnetic Measurements ◽  
Primary Standard ◽  
Uncertainty Budget ◽  
The State ◽  
State Primary Standard ◽  
Magnetic Flux Density ◽  
Constant Field

The results of works aimed at increasing the level of uniformity of measurements of the magnetic induction of a constant field – the basic value in the field of magnetic measurements. A set of equipment for reproducing a unit of magnetic induction of a constant field in the range of 1–25 mT was created and described. The inclusion of this complex in the State primary standard of units of magnetic induction, magnetic flux, magnetic moment and magnetic induction gradient GET 12-2011 will ensure the reproduction and direct transmission of the unit of permanent magnetic induction in the ranges of not only weak (10–3–1 mT), but medium (1–25 mT) and strong (0.025–1 T) magnetic fields. A quantum cesium magnetometer based on the resolved structure of cesium atoms was created to transmit the unit of magnetic induction to the region of medium fields. The procedure for calculating the frequency conversion coefficients to magnetic induction of the created quantum cesium magnetometer is described. The uncertainty budget for reproducing a unit of magnetic induction of a constant field using the created complex is estimated.

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