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Study on Preparation Technology and Finishing Performance of Magnetic Abrasive Grain

Due to the low efficiency of magnetic abrasive finishing and the difficulty in the making of magnetic abrasive grain, this article compares three different ways of its making, i.e. hot pressed sintering, spark plasma sintering (SPS) and ab-adhesive bonding sintering. SPS is found to have a higher cost, but it makes up the deficiency in magnetic abrasive grain made either by hot pressed sintering or by felt, with high abrasion resistance, processing efficiency and better processing performance.