Modeling and Analysis for Wear Performance in Dry Sliding of Epoxy/Glass/PTW Composites Using Full Factorial Techniques

Table 3

Control factors and their levels used in the experiment.

Control factor	Level
	I	II	III	Units
𝐴: Sliding velocity	2.5	5	7.5	m/s
𝐵: Normal load	30	60	90	N
𝐶: Filler content	2.5	5	7.5	Wt %