Synthesis CNTs Particle Based Abrasive Media for Abrasive Flow Machining Process

5th National Conference on Processing and Characterization of Materials

Kumar, Sonu^1 ; Murtaza, Q.^2 ; Walia, R.S.^1 ; Dhull, S.^1 ; Tyagi, P.K.^3

Precision Engineering Laboratory, Mechanical and Production Engg., Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India^1

Mechanical Engineering Department, Aligarh Muslim University, Aligarh, India^2

Applied Physic Department, Delhi Technological University (Formerly Delhi College of Engineering), Delhi, India^3

关键词: Abrasive flow machining;    Chemical vapour deposition;    CNTs;    Cylindrical surface;    Extrusion pressure;    Internal finishing;    Performance evaluations;    Visco-elastic mediums;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/115/1/012034/pdf
DOI  :  10.1088/1757-899X/115/1/012034

来源: IOP

【 摘 要 】

Abrasive flow machining (AFM) is a modem fine finishing process used for intricate and internal finishing of components or parts. It is based on flowing of viscoelastic abrasive media over the surface to be fine finished. The abrasive media is the important parameter in the AFM process because of its ability to accurately abrade the predefined area along it flow path. In this study, an attempt is made to develop a new abrasive, alumina with Carbon non tubes (CNTs) in viscoelastic medium. CNT s in house produced through chemical vapour deposition technique and characterize through TEM. Performance evaluation of the new abrasive media is carried out by increasing content of CNT s with fixed extrusion pressure, viscosity of media and media flow rate as process parameters and surface finish improvement and material removal as process responses in AFM setup. Significantly improvement has been observed in material removal and maximum improvement of 100% has been observed in the surface finish on the inner cylindrical surface of the cast iron work piece.