Minimum Porosity Formation in Pressure Die Casting by Taguchi Method

Table 4

Shrinkage porosity results of the L₂₇ array design. (Full table).

Trials	Holding Furnace Temperature A	Die temperature B	Plunger velocity; 1st stage C	Plunger; Velocity; 2nd stage D	Multiplied; Pressure E	Shrinkage porosity (%)					Average	MSD	𝑆/𝑁
						Repetition	Repetition	Repetition	Repetition	Repetition
						1	2	3	4	5
1	640	180	0.05	1.5	200	1.973	1.988	1.984	1.978	1.954	1.9754	3.902346	−5.91326
2	640	180	0.2	2.5	240	1.912	1.893	1.948	1.908	1.912	1.9146	3.666021	−5.64195
3	640	180	0.35	3.5	280	1.846	1.853	1.814	1.813	1.828	1.8308	3.352095	−5.25316
4	640	220	0.05	2.5	240	1.862	1.867	1.861	1.878	1.871	1.8678	3.488716	−5.42666
5	640	220	0.2	3.5	280	1.793	1.804	1.761	1.764	1.775	1.7794	3.166541	−5.00585
6	640	220	0.35	1.5	200	1.916	1.908	1.912	1.887	1.903	1.9052	3.629888	−5.59893
7	640	260	0.05	3.5	280	1.786	1.797	1.754	1.757	1.768	1.7724	3.141679	−4.97162
8	640	260	0.2	1.5	200	1.909	1.903	1.889	1.898	1.893	1.8984	3.603973	−5.56782
9	640	260	0.35	2.5	240	1.852	1.859	1.82	1.819	1.836	1.8372	3.375568	−5.28347
10	670	180	0.05	2.5	280	1.799	1.81	1.767	1.77	1.781	1.7854	3.18793	−5.03509
11	670	180	0.2	3.5	200	1.957	1.968	1.971	1.951	1.965	1.9624	3.851068	−5.85581
12	670	180	0.35	1.5	240	1.857	1.864	1.825	1.824	1.841	1.8422	3.393965	−5.30707
13	670	220	0.05	3.5	200	1.924	1.935	1.923	1.928	1.909	1.9238	3.701079	−5.68328
14	670	220	0.2	1.5	240	1.803	1.814	1.771	1.774	1.785	1.7894	3.202229	−5.05452
15	670	220	0.35	2.5	280	1.751	1.744	1.713	1.731	1.725	1.7328	3.002778	−4.77523
16	670	260	0.05	1.5	240	1.796	1.807	1.764	1.767	1.778	1.7824	3.177227	−5.02048
17	670	260	0.2	2.5	280	1.738	1.726	1.724	1.745	1.715	1.7296	2.991629	−4.75908
18	670	260	0.35	3.5	200	1.881	1.878	1.898	1.893	1.903	1.8906	3.574461	−5.53211
19	700	180	0.05	3.5	240	1.876	1.871	1.895	1.887	1.893	1.8844	3.551052	−5.50357
20	700	180	0.2	1.5	280	1.755	1.743	1.741	1.762	1.732	1.7466	3.050725	−4.84403
21	700	180	0.35	2.5	200	1.921	1.901	1.956	1.916	1.928	1.9244	3.703644	−5.68629
22	700	220	0.05	1.5	280	1.708	1.696	1.694	1.715	1.685	1.6996	2.888753	−4.6071
23	700	220	0.2	2.5	200	1.864	1.898	1.881	1.876	1.885	1.8808	3.537532	−5.487
24	700	220	0.35	3.5	240	1.825	1.832	1.793	1.792	1.807	1.8098	3.275642	−5.15296
25	700	260	0.05	2.5	200	1.856	1.861	1.855	1.872	1.865	1.8618	3.466338	−5.39871
26	700	260	0.2	3.5	240	1.814	1.821	1.782	1.781	1.796	1.7988	3.235948	−5.10001
27	700	260	0.35	1.5	280	1.692	1.694	1.706	1.683	1.712	1.6974	2.881274	−4.59585