Industrial Semi-Solid Rheocasting of Aluminum A356 Brake Calipers

Table 3

X-ray and pressure test quality control sample of consecutive visually passed castings achieved on the different days with the CSIR-RCS and HPDC. X-rayed brake calipers were solution heat-treated at 540°C for 1 hour and quenched. Pressure tested brake calipers were peak aged by solution heat treatment at 540°C for 1 hour, quenched and artificially aged at 180°C for 4 hours.

Trial/day	A	B	C	D	E
	/castings
X-rayed test	2	2	2	3	3
Pressure test					1
Total tested	2	2	2	3	4
Pass X-ray test	1	1	2	2	3
Pass pressure test					1
Total passed	1	1	2	2	4
Sample pass rate/%	50	50	100	67	100