The magnetic abrasive powders have great influence on the magnetic abrasive finishing accuracy and efficiency. A new kind of Fe-based spherical magnetic abrasive particles with Fe 2 N precipitates and Fe 4 N matrix was successfully synthesized by gas nitriding. The results show that the prepared Fe-based magnetic abrasive particles can reduce the …
The traditional finishing processes have various limitations such as to finish complex shapes, small sizes, etc. The deficiencies in the conventional finishing processes led to the exploitation of advanced finishing process like magnetic abrasive finishing (MAF). In MAF, the workpiece kept between the two poles of a magnet.
BK7 is an optical glass extensively used in lens manufacturing. In this work, magnetic abrasive finishing (MAF) method was utilized for finishing of this hard-to-machine material and the effect of various process parameters on surface roughness was investigated using response surface methodology. The best surface roughness value achieved was 23 nm. Among various …
This research studies the factors affecting the conditions required for successful uniform internal finishing of SUS304 stainless steel bent tube by a Magnetic abrasive finishing process. In particular, the effects of the magnetic field and ferrous particles were investigated. Local intensification of the magnetic field is accomplished by offsetting the axis …
The magnetic abrasive finishing (MAF) process is an ultra-precision surface finishing technology. In order to further improve the finishing efficiency and continuity, a magnetic abrasive finishing process using the …
Magnetic abrasive finishing (MAF) is the non – conventional finishing process in which workpiece is kept between the two poles (North & South) of magnet, to achieve the high surface finishing. This is being controlled by the magnetic field either induced by the help of permanent magnet or electro-magnet.
a Magnetic abrasive finishing process. In particular, the effects of the magnetic field and ferrous particles were investigated. It was concluded that the pole arrangement can be adjusted to control the strength of the magnetic field, and a stronger field results in the proper rotation of more types of mixed-type magnetic ...
Magnetic Abrasive Flow Finishing (abbreviated as MAFF) process is an unconventional process used for internal cylindrical surface finishing, intricate and complex …
In previous studies, it has been verified that the magnetic abrasive finishing process using alternating magnetic field can achieve higher finishing efficiency and surface quality, and nanolevel finishing of 5052 aluminum alloy material and SUS304 stainless steel material has been realized. In this study, the feasibility for ultra-precision finishing of …
Magnetic abrasive finishing process is an advanced finishing process capable of finishing, deburring and precision chamfering of components. Magnetic abrasive finishing …
This study describes the application of a magnetic abrasive finishing (MAF) process to yield a fine finish on planar workpiece (SS304). The grinding tool is a flexible abrasive brush using diamond particles embedded in a spherical iron matrix. This bonded type of spherical MAPs was developed via an atomization technology to solve the problem ...
This paper provides a comprehensive review on MAF process which is mainly organized by different six sections, including MAF principles, magnetic abrasive preparation, MAF tools, …
High quality, highly efficient finishing processes are required for finishing difficult-to-machine materials. Magnetic abrasive finishing (MAF) process is a finishing method that can obtain a high accuracy surface using fine magnetic particles and abrasive particles, but has poor finishing efficiency. On the contrary, fixed abrasive polishing (FAP) is a polishing …
Magnetic Abrasive Finishing (MAF) process is the one in which material is removed in such a way that surface finishing and deburring are performed simultaneously with the applied magnetic field in … Expand
With the development of semiconductors, optics, aerospace, and other fields, the requirements for surface finish are constantly increasing. Correspondingly, there are higher requirements for machining technology [], abrasive-cutting process [2, 3], finishing process, etc.The magnetic abrasive finishing (MAF) process is considered to be one of the …
Magnetic Abrasive Finishing (MAF) process is one of these processes used for polishing of both ferrous and non-ferrous materials. In this technique, a magnetic force is applied in the finishing area to allow the abrasive particles to shear-off the material from the workpiece surface in microchips form.
Magnetic abrasive finishing (MAF) process, a kind of non-traditional precision processing technology, is widely used in semiconductors, optics, aerospace, biological engineering, etc. [1,2,3,4,5,6,7,8,9].Because the magnetic field has penetrating characteristics, the MAF process can not only be used in finishing the outer surface of the workpiece but …
In order to achieve the finishing of complex microsurface, the magnetic abrasive finishing process using alternating magnetic field was proposed. In this paper, the mechanism of the magnetic abrasive finishing process using alternating magnetic field was investigated. At the same time, the influence of magnetic particle size and magnetic field frequency on …
The schematic diagram of the plane magnetic abrasive finishing apparatus is shown in Fig. 3 a. In this process, the magnetic flux density of 0–0.44 T is used in the working gap of 1.00–2.00 mm.The magnetic flux density in the working gap is varied by changing input current to the electromagnet, and it is measured by using a digital Gauss meter (model DGM …
This paper proposes a novel magnetic abrasive finishing (MAF) process that uses an auxiliary magnetic machining tool for the internal surface finishing of a thick-walled tube. The auxiliary magnetic machining tool and external poles form a closed magnetic field circuit. Thus, a stronger magnetic force can be generated during the process. In the current …
Magnetic Abrasive Finishing (MAF) process is an advanced finishing process to improve the surface quality of products by using abrasive brush formed by magnetic abrasives [12]. As a precision machining method with wide application range, strong adaptability, strong controllability and high processing efficiency, MAF can realize the finishing of ...
Shinmura et al [1] have studied basic principle of the MAF process and concluded that the stock removal and surface finish value (Ra) increase as the magnetic abrasive particle diameter "D" increases. Ra value of the final surface finish increases as the abrasive grain diameter "d" increases.In order to achieve smooth surface and remove surface damage, the …
5. LITERATURE REVIEW NAME TITLE OUTCOMES T.Mori, K.Hirota, Y. Kawashima (2003) Clarification of magnetic abrasive finishing mechanism 1. There is brush forming energy involved in the formation of magnetic abrasive brush in the MAF process. 2. Most of the normal force applied within the area of 1mm radius and the degree concentration …
Ultrasonic-assisted magnetic abrasive finishing (UAMAF) integrates the use of ultrasonic vibrations and magnetic abrasive finishing (MAF) processes to finish surfaces of nanometer order within a minute's time. ... scanning electron and atomic force microscopy were used to understand the material removal process and wear behavior during ...
The magnetic abrasive finishing (MAF) process is considered to be an effective method to improve the surface finish. The grinding tool of the MAF process is the magnetic brush composed of tiny particles combined under the …
A finishing process that extrudes abrasives through complex internal passages to smooth surfaces, remove burrs, and round edges. Extrude honing, or abrasive flow machining (AFM), forces semi-solid abrasive media into an opening in a workpiece, through its internal features, and out of another opening. ... Magnetic abrasive finishing uses a ...
MAGNETIC ABRASIVE FINISHING - Download as a PDF or view online for free. ... 325-328. V. K.singh, et al. "Effect of working gap and circumferential speed on the performance of magnetic abrasive finishing process." Wear 250.1 (2001): 384-390 Chang, Geeng-Wei, Biing-Hwa Yan, and Rong-Tzong Hsu. ...