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Parameter optimization of CO2 casting process by using Taguchi method

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Abstract

This study demonstrates optimization of CO2 casting process parameters by using Taguchi’s design of experiments method. The CO2 casting process involves a large number of parameters affecting the various quality features of the final product. The process parameters considered in this research work are weight of CO2 gas, mould hardness number, sand particle size, percentage of sodium silicate, sand mixing time, pouring time, pouring height, pouring temperature, and cooling time of poured metal. The effect of the selected process parameters on casting defects and subsequent setting of the parameters have been accomplished by using Taguchi’s parameter design approach. The result indicates that the selected process parameters significantly affect the defects of CO2 casting. The results are further conformed by conducting confirmation experiments.

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Abbreviations

R :

number of tests in a trial

y i :

response value of observation in ith test

DOE:

design of experiments

υ :

degrees of freedom

υ A :

degrees of freedom for factor A

k A :

number of levels for Factor A

υ A × B :

degrees of freedom for interaction of factor A and B

υ required :

total degrees of freedom required

υ LN :

total degrees of freedom of available orthogonal array

N :

number of trails

ANOVA:

analysis of variance

M :

overall mean percentage defects

V Factor:

variance of factor

SS:

Sum of square

V′:

expected amount of variation

P :

percent contribution

μ :

mean

α :

level of risk

υ e :

degrees of freedom for error

V e :

error variance

F (α, 1, υ e ):

F ratio required at level of risk

η eff :

effective number of replications

N :

total number of experiments

CI:

confidence interval

T :

average values of casting defects at different levels

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Authors and Affiliations

  1. Department of Production Engineering, National Institute of Technology, Tiruchirappalli, 620015, India

    A. Noorul Haq

  2. Department of Mechanical Engineering, R.V.S. College of Engineering and Technology, Dindigul, 624005, India

    S. Guharaja & K. M. Karuppannan

Authors
  1. A. Noorul Haq
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  2. S. Guharaja
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  3. K. M. Karuppannan
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Correspondence to A. Noorul Haq.

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Noorul Haq, A., Guharaja, S. & Karuppannan, K.M. Parameter optimization of CO2 casting process by using Taguchi method. Int J Interact Des Manuf 3, 41–50 (2009). https://doi.org/10.1007/s12008-008-0054-4

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  • DOI: https://doi.org/10.1007/s12008-008-0054-4

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