An investigation of different abrasives using abrasive water jet machining of steel
(M.E.Scholar) Mechanical Engineering Department, L.D.R.P – ITR, Sector 15, Gandhinagar, India
ABSTRACT
Surface roughness (Ra) and material removal rate characteristics of an abrasive water jet machined surface of steel were studied. Garnet and aluminium oxide were used as an abrasive material with 80mesh. Taguchi’s design of experiments and analysis of variance (ANOVAs) Analysis was used to determine the effect of machining parameters on surface roughness and material Removal Rate. It was found that traverse speed and types of abrasive materials are the most significant control factor in influencing material removal rate and surface roughness respectively. The experimental result shows that aluminium oxide type abrasive materials perform better than garnet in terms of both machining characteristics. Increasing in traverse speed and abrasive flow rate may result in better material removal rate characteristics. Decreasing the traverse speed and increased abrasive flow rate may result better surface smoothness.
