Modeling and Analysis of Injection Moulding Process Parameters for Plastic Gear Industry Application

Table 7

The grey relational coefficient and grey relational grade for eighteen comparability sequences.

Experimental run (comparability sequences)	Volumetric shrinkage (%)	Deflection (mm)	Grey relational grade
	Grey relational coefficient
1	0.9764	0.5832	0.7798
2	0.7678	0.8148	0.7913
3	0.6813	0.9080	0.7947
4	0.5611	0.7139	0.6375
5	0.5767	0.9518	0.7643
6	0.4778	0.4029	0.4404
7	0.3857	0.3511	0.3684
8	0.3333	0.6051	0.4692
9	0.3769	0.7691	0.5730
10	0.8641	1.0000	0.9321
11	0.7209	0.6166	0.6687
12	1.0000	0.7319	0.8660
13	0.4769	0.8894	0.6832
14	0.5573	0.4363	0.4968
15	0.5891	0.7593	0.6742
16	0.3815	0.6719	0.5267
17	0.3333	0.7723	0.5528
18	0.3741	0.3333	0.3537