Finishing Clearance Research on Magnetic Abrasive Finishing

2010 ◽  
Vol 97-101 ◽  
pp. 4116-4119
Author(s):  
Hong Ling Chen ◽  
Wen Hui Li ◽  
Sheng Qiang Yang ◽  
Shi Chun Yang

As a kind of precise surface finishing technology, magnetic abrasive finishing has wide application, low cost, high efficiency, good effects, and other advantages. Finishing clearance is one main parameter affecting finishing effect and efficiency of magnetic abrasive finishing. Affecting rules of finishing clearance and filling volume are discussed by experiments, which provide basis for parameters selection and practical application of magnetic abrasive finishing.

2010 ◽  
Vol 455 ◽  
pp. 174-180 ◽  
Author(s):  
Wen Hui Li ◽  
Hong Ling Chen ◽  
Sheng Qiang Yang ◽  
Shi Chun Yang

As a kind of precise surface finishing technology, magnetic abrasive finishing has wide application, low cost, high efficiency, good effects, and other advantages. Magnetic induction intensity is one main parameter affecting finishing effect and efficiency of magnetic abrasive finishing. Saturation magnetic induction intensity for different magnetic abrasives is defined through test device designed by ourselves. Affecting rules of saturation magnetic induction intensity is discussed by experiments, which provide basis for parameters selection and practical application of magnetic abrasive finishing.


2017 ◽  
Vol 3 (1) ◽  
Author(s):  
Lida Heng ◽  
Yon Jig Kim ◽  
Sang Don Mun

AbstractRecent developments in the engineering industry have created a demand for advanced materials with superior mechanical properties and high-quality surface finishes. Some of the conventional finishing methods such as lapping, grinding, honing, and polishing are now being replaced by non-conventional finishing processes. Magnetic Abrasive Finishing (MAF) is a non-conventional superfinishing process in which magnetic abrasive particles interact with a magnetic field in the finishing zone to remove materials to achieve very high surface finishing and deburring simultaneously. In this review paper, the working principles, processing parameters, and current limitations for the MAF process are examined via reviewing important work in the literature. Additionally, future developments of the MAF process are discussed.


2020 ◽  
Vol 8 (3) ◽  
Author(s):  
Jason Ratay ◽  
Pei-Ying Wu ◽  
Alex Feirvezers ◽  
Hitomi Yamaguchi

Abstract Nickel-based superalloys have a wide range of high-temperature applications such as turbine blades. The complex geometries of these applications and the specific properties of the materials raise difficulties in the surface finishing. Magnetic abrasive finishing (MAF) has proven effective in finishing the complex geometries. In MAF, the magnetic properties of the workpiece, tool, and abrasive play important roles in controlling finishing characteristics. This paper presents the effects of nickel coating on the abrasive behavior during finishing and resulting finishing characteristics of Ni-based superalloys. The Ni-coated diamond abrasive is more attracted to the magnet than the Ni-based superalloy surface. As a result, fewer Ni-coated diamond abrasive particles, which are stuck between the magnetic-particle brush and the target surface, participate in surface finishing. Because of this, coupled with the reduced sharpness of abrasive cutting edges due to the coating, Ni-coated diamond abrasive cannot effectively smooth the target surface in MAF. However, the Ni coating is worn off during finishing of the hard, rough, additively manufactured surface. Then, the diamond abrasive participates in finishing as uncoated diamond abrasive and facilitates the material removal, finishing the target surface.


Machines ◽  
2020 ◽  
Vol 8 (4) ◽  
pp. 75
Author(s):  
Huijun Xie ◽  
Yanhua Zou

The magnetic abrasive finishing (MAF) process is an ultra-precision surface finishing process. In order to further improve the finishing efficiency and surface quality, the MAF process using an alternating magnetic field was proposed in the previous research, and it was proven that the alternating magnetic field has advantages compared with the static magnetic field. In order to further develop the process, this study investigated the effect on finishing characteristics when the alternating current waveform is a square wave. The difference between the fluctuation behavior of the magnetic cluster in two alternating magnetic fields (sine wave and square wave) is observed and analyzed. Through analysis, it can be concluded that the use of a square wave can make the magnetic cluster fluctuate faster, and as the size of the magnetic particles decreases, the difference between the magnetic cluster fluctuation speed of the two waveforms is greater. The experimental results show that the surface roughness of SUS304 stainless steel plate improves from 328 nm Ra to 14 nm Ra within 40 min.


2013 ◽  
Vol 675 ◽  
pp. 331-336
Author(s):  
Han Ming Chow ◽  
Wei Liang Ku ◽  
Ching Tien Lin ◽  
Yan Cherng Lin ◽  
Lieh Dai Yang

The purpose of this study was using a new approach of grey relational analysis based on Taguchi experimental design to employ the magnetic abrasive finishing (MAF) method to process the stainless AISI304 material on surface abrasive operations. The operations were demonstrated in the permanent magnetic polishing mechanism, it was installed in the CNC machining center. The operations of the parameters such as magnetic field, pole revolution, feed rate, working gap, abrasive, and lubricant, were considered. The confirmation experiments showed the optimal operational condition of surface roughness. The collected data were analyzed using a new approach of grey relational analysis to establish of abrasive magnetic finishing parameter and quality characteristic. The optimal parameter condition to process the stainless AISI304 material was conducted using two stage processes; prior to the rough polishing, the Rmax value was equal to 2.572 μm, Rmax value was 0.10 μm after the finished polishing. It could be concluded that magnetic abrasive finishing was one of the excellent technologies of getting good surface roughness with high efficiency.


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