Scholarly record
EFFECT OF THE PROCESS PARAMETERS ON THE KERF WIDTH IN ABRASIVE WATERJET CUTTING
Abstract
Abrasive waterjet machining (AWJ) with its wide ranging applications, offers a variety of advantages. It is very effective in machining materials which are hard to machine such as steel, composites and stones etc. The efficiency of the cutting process depends on several factors (e.g. hydraulic, nozzle and cutting). Kerf geometry, depth of cut, surface roughness and material removal rate are often used as target parameters. Although, several researchers studied the influence of process parameters on different materials in terms of defining the cutting performances of AWJ, the studies of AWJ parameters in cutting of rock are still desirable. Kerf width is often used to reflect the width of the cut produced by abrasive waterjet cutting. It is an important parameter that is inherent to AWJ. In this study, effect of the process parameters on the kerf widths of two granites was analyzed. Experimental studies were conducted on the basis of Taguchi orthogonal design and effect of process parameters are assessed through mean of means responses. As a result of the study, increasing of traverse speed decreases the kerf widths, whereas increasing of abrasive flow rate and standoff distance increase the kerf widths of both granites. Additionally, Increasing of water pressure doesn’t have a discernible effect on kerf widths. Moreover, fine grain abrasive size creates wider kerfs than coarse abrasive size.
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References17
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