Experimental Investigation and Optimization of Material Removal Rate and Tool Wear in the Machining of Aluminum-Boron Carbide (Al-B₄C) Nanocomposite Using EDM Process

Table 4

General linear model: MRR versus tool diameter, current, and on-time.

Factor	Type	Levels	Values
Tool diameter (mm)	Random	4	4, 6, 8, 10
Current (amp)	Random	4	1, 2, 3, 4
On-time (µ sec)	Random	4	1, 2, 3, 4