Research on removal function of fluid hydrodynamic fixed abrasive grinding

Pengfei Liu; Dong Ming; Bin Lin

doi:10.1016/j.jare.2020.05.023

Research on removal function of fluid hydrodynamic fixed abrasive grinding

J Adv Res. 2020 May 22:24:397-408. doi: 10.1016/j.jare.2020.05.023. eCollection 2020 Jul.

Authors

Pengfei Liu¹, Dong Ming¹, Bin Lin²

Affiliations

¹ Tianjin International Joint Research Center for Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, 300072 Tianjin, PR China.
² Key Laboratory of Advanced Ceramics and Machining Technology, Ministry of Education, Tianjin University, 300070 Tianjin, PR China.

Abstract

Fluid hydrodynamic fixed abrasive grinding (FHFAG) is now evolving into a promising finishing method underpinning the major advances across grinding and lapping sciences. While the advances have been startling, the key unmet challenge to date is the theoretical basis of removal function. Here, we approach this challenge by presenting a fully coupled flow deformation model. Given the separation function on microchannel from the grits fixed on the grinding pad, hydrodynamic pressure distribution with many dynamic pressure peaks and basic film thickness can be described theoretically. Combining with primary material removal mechanism the removal function of FHFAG was achieved. The experimental results showed a strong agreement with the prediction removal function model and its practicability has also been verified.

Keywords: Fixed abrasive grinding; Fluid hydrodynamic; Fully coupled flow deformation model; Removal function.