• CN: 11-2187/TH
  • ISSN: 0577-6686

›› 2014, Vol. 50 ›› Issue (9): 161-168.

• Article • Previous Articles     Next Articles

Study of Near Wall Area Micro-cutting Mechanism and Finishing Characteristics for Softness Abrasive Flow Finishing

LI Chen,;JI Shiming,;TAN Dapeng,;LIU Xize   

  1. Department of Quality and Safety Engineering, China Jiliang University; Key Laboratory of Special Purpose Equipment and Advanced Manufacturing Technology of Ministry of Education, Zhejiang University of Technology
  • Online:2014-05-05 Published:2014-05-05

Abstract: Softness abrasive flow (SAF) machining is a novel finishing method for mold structural surface. Based on the characteristics of SAF machining, the micro-cutting mechanism of particles to surface has been analyzed. Force analysis for the solid phase which flowed with SAF is carried out based on the Preston equation, and then, the micro-cutting mechanism of particles to surface has been analyzed. Typical structural surface of motor mold has been simplified, and the physical model used to numerical analyzing and finishing is obtained, and realizable k-ε model is used for numerical analyzing pressure and velocity distribution of SAF flow field. SAF experimental platform is constructed, the validity of micro-cutting mechanism analyzing is proved, and experiment results show that SAF can improve surface accuracy of tiny scale mould structural surface effectively.

Key words: softness abrasive flow;FORCE analysis;micro-cutting mechanism;realizable k-ε model

CLC Number: