The effect of polishing fluid on the finishing performance of titanium alloy utilizing new lapping tape

Abstract

In this paper, a new polishing technique, using polishing fluid, for titanium alloy, which can be machined only with extreme difficulty, is outlined. Only two types of polishing fluids were used, one of the Emulsion type, and the other, of the Soluble type. By changing the composition of the two types of polishing fluid, their polishing performance (surface roughness, tangential polishing force and SEM (Scanning Electron Microscope) observation) was evaluated for a titanium alloy. It was found that the introduction of 'sulfurized fatty acid' into the polishing fluids greatly improved the finishing of the titanium alloy.

本報告では機械仕上げが極めて難しいチタン合金に対して、ラッピングテープと研磨液を使った新しい研磨法の概要を述べた。エマルション型とSoluble型の2種類の研磨液のみを用いた。研磨液の組成を変えて、研磨特性(表面粗さ、接線研磨力、SEM(走査電子顕微鏡)観察)を評価した。研磨液に「硫化脂肪酸」を加えるとチタン合金の仕上がりを大幅に改善した。