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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.18 [2011] >
IJEMS Vol.18(6) [December 2011] >
| Title: | Analysis of the kerf angle of the granite machined by abrasive waterjet (AWJ) |
| Authors: | Karakurt, Izzet
Aydin, Gokhan
Aydiner, Kerim |
| Keywords: | Abrasive Waterjet
Granite
Kerf Angle
Anova |
| Issue Date: | Dec-2011 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Abrasive waterjet (AWJ) cutting is one of the fastest growing machining
processes which can machine almost any engineering material. However, the cutting capability of AWJ in terms of kerf
quality is one of the major obstructions limiting its applications. Kerf angle,
an important cutting performance measure, is a special geometrical
feature inherent to AWJ machining and its high values are undesirable. It
reflects the inclination of the kerf wall from the top surface to the bottom of
the kerf. In this study, effects of process parameters and the material
properties (i.e. textural properties) of the granites on the kerf angle are
experimentally investigated. The design philosophy of Taguchi was followed to
conduct experiments. Analysis of variance (ANOVA) was used to evaluate data
obtained to determine the major significant process factors statistically
affecting the kerf angle of the granites. The results revealed that the grains
and their boundaries, the uniaxial compressive strength as well as the mineral compositions
(especially feldspar and quartz) play the most important role for the kerf
angles in the granites as material properties. Additionally, the most
significant process factors influencing the kerf angle of the granites are
statistically determined as the traverse speed, and the standoff distance. |
| Page(s): | 435-442 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.18(6) [December 2011]
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