Experimental investigation and process parameters optimization for abrasive water jet machining using desirability function analysis
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초록
Abrasive water jet cutting is a recent advanced machining process effectively used for machining several materials irrespectiveof hardness. MONEL K500 is hard to machine material used for various high temperature components like aircraft enginecomponents, turbine blades, missiles, components for supercritical power plants etc. Non-traditional machining methods aremore suitable for the machining of these kinds of hard alloys and abrasive water jet machining are highly preferred andfound suitable for machining these materials in several industries. The multi-response process parameter optimization inabrasive water jet machining of MONEL K500 using composite desirability function analysis is carried out in this work. The significant process parameters are standoff distance, speed rate and abrasive flow rate. The responses considered in thiswork are surface roughness, material removal rate and kerf width. The individual desirability functions of all responses areconsidered and the weightages of each response are assigned to calculate the composite desirability. The higher compositedesirability value provides the optimum process parameters and they are validated. ANOVA analysis and S/N plots forthe responses and the composite desirability function are also carried out to predict the high influencing parameters whilemachining MONEL K500.
Abstract
Abrasive water jet cutting is a recent advanced machining process effectively used for machining several materials irrespectiveof hardness. MONEL K500 is hard to machine material used for various high temperature components like aircraft enginecomponents, turbine blades, missiles, components for supercritical power plants etc. Non-traditional machining methods aremore suitable for the machining of these kinds of hard alloys and abrasive water jet machining are highly preferred andfound suitable for machining these materials in several industries. The multi-response process parameter optimization inabrasive water jet machining of MONEL K500 using composite desirability function analysis is carried out in this work. The significant process parameters are standoff distance, speed rate and abrasive flow rate. The responses considered in thiswork are surface roughness, material removal rate and kerf width. The individual desirability functions of all responses areconsidered and the weightages of each response are assigned to calculate the composite desirability. The higher compositedesirability value provides the optimum process parameters and they are validated. ANOVA analysis and S/N plots forthe responses and the composite desirability function are also carried out to predict the high influencing parameters whilemachining MONEL K500.