亲水性固结磨料研磨垫自修整过程的实现探索

亲水性固结磨料研磨垫(FAP)的自修整过程影响着其加工性能的稳定性.采用亲水性树脂和铜粉制备固结磨料研磨垫,研究研磨液中添加不同含量三乙醇胺对树脂基体砂浆磨损率及研磨垫材料去除率大小、稳定性的影响,以此来判断研磨垫的自修整性能,探索亲水性固结磨料研磨垫自修整的实现机理.结果表明:在本文实验所考察范围内,随着研磨液中三乙醇胺含量的增加,树脂基体的砂浆磨损率升高,当三乙醇胺体积比从0升至5%时,砂浆磨损率从0.003 3 g上升至0.009 1 g;研磨液中三乙醇胺浓度的提高有助于其材料去除率的稳定,当三乙醇胺体积比从0升至5.0%时,材料去除率的稳定性从11%提升至42.9%.可见,研磨液中加入三乙醇胺可以改善含铜粉亲水性固结磨料研磨垫的自修整性能.

Realization of Self-Conditioning Process of Hydrophilic Fixed Abrasive Pad

Selfconditioning process of hydrophilic fixed abrasive pad （FAP） affects its machmg pertorm ance stability. In this paper, FAP was prepared with hydrophilic polymer and copper powder, and differ ent amount of triethanolamine （TEA） was added to the lapping aqueous solution, to explore the influence of TEA on the slurry abrasion ratio of polymer and material removal rate （MRR） of FAP, which can re flect the selfconditioning performance and realization mechanism of hydrophilic FAP. The results show that within the investigation scope of this experiment, with the volumetric ratio of TEA added to the lap ping aqueous solution increased from 0 to 5.0% , the slurry abrasion ratio of polymer increased from 0. 003 3 g to 0. 009 1 g, and the stability of MRR was improved from 11% to 42. 9%. It is indicated that adding TEA to the lapping aqueous solution can improve the selfconditioning performance of hydrophilic FAP embedded with copper powder.