Simulation and experiment for softness abrasive flow processing

JI Shi-ming， ZHANG Ding
（Key Laboratory of E&M， Ministry of Education & Zhejiang Province， Zhejiang University of Technology，
Hangzhou 310014， China）

Abstract： In order to improve the defects of abrasive flow processing，softness abrasive flow processing was put forward，and it was applied to the processing of small cavity and channel. Collocating restraint component to the surface in order to form sealed processing flow passage，Euler double fluid model was established. Using Fluent，the characteristics of solid-liquid two-phase flow in the passage of softness abrasive flow was simulated. Spraying paint on the surface of workpiece， the softness abrasive flow processing's effect was observed， and the experiment was processed. Experiment results show that wear of paint is well-distributed and wear of surface is exquisite，which reflect the advancement and effectiveness of softness abrasive processing. The result indicates that distribution of spray paint's wear on surface is close with abrasive dynamic pressure's distribution in simulation，so it can predicate softness abrasive flow processing's effect.
Key words： softness abrasive flow；constraint passageway；double fluid model；numerical simulation