Open Access

Table 2

Process parameters and their corresponding levels.

Symbols Parameters Level 1 Level 2 Level 3 Level 4
A Foil thickness, t (µm) 25 50 75 100
B Punch stroke, s (mm) 9.582 9.635 9.688  
C Punching frequency, f (Hz) 0.15 0.20 0.25  
D Grain size, d (µm) Cond. 1 Cond. 2 Cond. 3 Cond. 4

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