Surface quality and material removal in magnetic abrasive finishing of selective laser melted 316L stainless steel

Magnetic abrasive finishing (MAF) is one of the finishing processes which produces nano finished surfaces. The material removal process is in the form of microchips. The present paper introduces a novel work based on the principle of MAF for flat surfaces. The experiments were conducted on titanium material to investigate the response of MAF on hardness. Matlab has been used to evaluate the performance. The results obtained from the experimental investigations revealed that the hardness improves with MAF. The surface morphology of finished surface was studied with the help of SEM images

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Investigation on the Improvement of Surface Quality by the Magnetic Plate-Assisted Magnetic Abrasive Finishing Process

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1018.111 ◽

2021 ◽

Vol 1018 ◽

pp. 111-116

Author(s):

Yan Hua Zou ◽

Hui Jun Xie

Keyword(s):

Magnetic Field ◽

Surface Quality ◽

Field Distribution ◽

Magnetic Field Distribution ◽

Magnetic Flux Density ◽

Magnetic Pole ◽

Magnetic Abrasive Finishing ◽

Abrasive Finishing ◽

Glass Lens ◽

The Magnetic Field

The traditional magnetic abrasive finishing (MAF) process, the magnetic flux density at the bottom of the magnetic pole is unevenly distributed, resulting in poor uniformity of the finished surface. Therefore, it is proposed to improve the surface quality by attaching a magnetic plate at the bottom of the workpiece to improve the magnetic field distribution. It is confirmed by simulation that the magnetic field distribution at the bottom of the magnetic pole is effectively improved after the magnetic plate is attached. It is proved through experiments that the magnetic plate-assisted MAF process can obtain a smoother surface. The experimental results show that the surface roughness of the glass lens improves from 246 nm Ra to 3 nm Ra through the magnetic plate-assisted MAF process within 45min.

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Discussion on Roundness of Non-Ferromagnetic Tube by Interior Magnetic Abrasive Finishing Using a Magnetic Machining Jig

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1018.105 ◽

2021 ◽

Vol 1018 ◽

pp. 105-110

Author(s):

Jiang Nan Liu ◽

Yan Hua Zou

Keyword(s):

Stainless Steel ◽

Dynamic Equation ◽

Steel Tube ◽

Experimental Results ◽

Stainless Steel Tube ◽

Helical Motion ◽

Magnetic Pole ◽

Magnetic Abrasive Finishing ◽

Sus304 Stainless Steel ◽

Abrasive Finishing

In this study, mainly researching the improvement of roundness of thick SUS304 stainless steel tube by interior magnetic abrasive finishing using a magnetic machining jig. The influence of reciprocating velocity of magnetic pole unit on the improvement of roundness of interior surface was studied by establishing the dynamic equation of magnetic machining jig. Experimental results showed that low reciprocating velocity of magnetic pole unit is conducive to the improvement of interior roundness of the thick SUS304 stainless steel tube. The reason is that the low reciprocating velocity of magnetic pole unit reduces the pitch of the helical motion and can produce greater finishing force of the magnetic machining jig.

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Parametric Optimization of Magnetic Abrasive Finishing Using Adhesive Magnetic Abrasive Particles

International Journal of Surface Engineering and Interdisciplinary Materials Science ◽

10.4018/ijseims.2019070103 ◽

2019 ◽

Vol 7 (2) ◽

pp. 34-47

Author(s):

Palwinder Singh ◽

Lakhvir Singh ◽

Arishu Kaushik

Keyword(s):

Surface Finish ◽

Medical Equipment ◽

Material Removal ◽

Parametric Optimization ◽

Removal Rate ◽

Improvement Rate ◽

Magnetic Abrasive Finishing ◽

Abrasive Particles ◽

Abrasive Finishing ◽

Depth Analysis

A very precise surface finish is desirable in manufacturing semiconductors, medical equipment, and aerospace parts. The examinations on magnetic abrasive finishing (MAF) processes are being done for the modern industry. This newly developed process is serving the industry to achieve the desired level of precision and surface finish. This research represents the MAF of aluminum pipes using adhesive magnetic abrasive particles. The different process parameters were optimized using the Response Surface Methodology (RSM) method to gain an in-depth analysis of surface roughness in terms of roughness improvement rate (RIR), and material removal rate (MRR). The achieved maximum RIR and MRR was 81.49% and 2.74mg/min, respectively. The finished workpieces were microscopically investigated by scanning electron microscopy (SEM) to further study the mechanism of MAF process.

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