DBPapers

EFFECT OF THE PROCESS PARAMETERS ON THE KERF WIDTH IN ABRASIVE WATERJET CUTTING

AUTHOR/S: I. KARAKURT, G. AYDIN, K. AYDINER
Sunday 1 August 2010 by Libadmin2010

10th International Multidisciplinary Scientific GeoConference - SGEM2010, www.sgem.org, SGEM2010 Conference Proceedings/ ISBN 10: 954-91818-1-2, June 20-26, 2010, Vol. 1, 415-422 pp

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.

Keywords: Abrasive waterjet cutting, Granite, Kerf width, Experimental design