Enhancing Surface Integrity of Selective Laser Melted Al-Si Alloys through Ultrasonic Assisted Magnetic Abrasive Finishing utilizing SiC Abrasives

Maraboina, Raju; Pasam, Vamsi Krishna

doi:10.1007/s12633-023-02721-y

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…Due to the high hardness, strength, viscosity, and toughness of the Inconel 718 superalloy, it is difficult to meet the required quality requirements using traditional grinding techniques [1][2][3]. Therefore, magnetic abrasive finishing (MAF) technology is used to attempt to improve its surface quality [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Machining Property in Inconel 718 Superalloy Grinding with Al2O3- and CBN/Fe-Based Spherical Magnetic Abrasives

Jiang,

Zhang,

Zhang

et al. 2024

Coatings

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A comparative analysis was studied on the finishing performance of spherical CBN/Fe-based magnetic abrasive particles (MAPs) and Al2O3/Fe-based magnetic abrasive particles (MAPs) prepared by the gas atomization method in the magnetic abrasive finishing (MAF) of the Inconel 718 superalloy. In the MAF, it was found that compared with Al2O3/Fe-based MAPs, CBN/Fe-based MAPs have a lower grinding temperature and generate less heat during the grinding of the Inconel 718 superalloy. The grinding pressure generated on the workpiece is relatively stable (Al2O3/Fe-based MAPs have a larger fluctuation range of grinding pressure on the workpiece surface during the grinding process). The surface roughness of the workpiece rapidly drops from Ra 0.57 μm to Ra 0.039 μm, and the material removal reaches 42 mg within 20 min. After finishing, the scratches on the surface of the workpiece basically disappear, the contour curve is relatively flat, and there is almost no adhesion on the surface of the workpiece. The mirror effect of the superalloy surface is good, and ultimately a better surface quality can be obtained.

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