2 results listed
Inconel 718 is commonly sought after for its
resistance to high temperature and corrosion, however, these
characteristics reduce the machinability of this material which
brings forth the AWJ machining, a non-conventional material
removal process, as the ideal option. The use of Abrasive
Waterjet (AWJ) machining for Inconel 718 offers desired
machining characteristics, therefore, has a commercial
significance. The objective of this study is to optimize input
parameters of AWJ machining involved in AWJ machining of
Inconel 718 using the Taguchi technique. Optimization of AWJ
machining parameters was conducted based on the analysis of
variance (ANOVA) and Signal-to-Noise (S/N) Ratio analysis in
order to obtain effective Surface Roughness and Material
Removal Rate. AWJ machining parameters such as abrasive
flow rate, focusing tube size, traverse speed and water pressure
were calculated for optimized Surface Roughness and Material
Removal Rate. It was concluded that the optimal AWJ
machining parameters found in this study are satisfactory for
the actual/commercial machining of Inconel 718.
International Iron & Steel Symposium
UDCS
Fuat KARTAL
Hasan GÖKKAYA
Refik POLAT
In this paper, Taguchi technique is selected in order
to explore ideal process parameters for abrasive water jet
machining (AWJM). The goal of this exploratory research is to
explore the effects of machining parameters on MRR and SR of a
work piece made of aluminum a356 alloy. Our approach is based
on Taguchi's technique, ANOVA and the SN ratio in order to
optimize AWJ machining process parameters for successful
machining and to establish optimal values of each AWJM
parameter, namely, abrasive stream rate, traverse speed, standoff
distance and abrasive grit size. L9 orthogonal array is utilized for
varying values of A, B, C, D and three tests were conducted for
each combination. Using the SN ratio, it was possible to find the
optimal parameter values for AWJM. It was concluded that, in
actual practice, the ideal combination of AWJM process
parameters fulfill the requirements for machining of cast A 356
aluminum alloy.
International Iron & Steel Symposium
UDCS
Fuat KARTAL
Hasan GÖKKAYA
Refik POLAT