Quantitative Analysis of Electroplated Nickel Coating on Hard Metal

Table 1

Design layout of experiment.

Standard	Distance (mm)	Time (min)	Coded form
			𝑥1	𝑥2
1	15	20	1	0
2	10	20	0	0
3	15	10	1	−1
4	5	10	−1	−1
5	5	20	−1	0
6	10	10	0	−1
7	15	30	1	1
8	5	30	−1	1
9	10	30	0	−1