Journal of Materials Science: Materials in Engineering

Table 6 Dimensional combinations with the best correlation

From: Investigation of a new methodology for the prediction of drawing force in deep drawing process with respect to dimensionless analysis

	Combination	R²	Regression equation
1	π₁ = f(π₂,π₃)	0.9	0.0011 × π₂^0.011 × π₃^0.8
2	π₁ = f(π₂,π₄)	0.9	2.126 × π₂^1.366 × π₄^2.795
3	π₁ = f(π₂,π₅)	0.86	2.109 × π₂^1.358 × π₅^2.776
4	π₁ = f(π₂,π₆)	0.89	0.63 × π₂^1.01 × π₆^0.26

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