Optimization of Flow Shop Scheduling in Precast Concrete Component Production via Mixed-Integer Linear Programming

Table 7

Overtime plan for scheme (2).

Component production sequence	Process operation time (h)
	Mold assembling	Reinforcement setting	Concrete casting	Mold removal	Finishing/repairing
3	0	0	0	0	0
4	0	0	0	0	0
2	0	0	0	0	0
5	0	0	0.8	0	0
1	0	0	0	0	0
6	0	0.6	2.3	0	0
7	0	1.4	3.5	0.7	0
8	0	0	0	0	0
9	0	0	0	0	0
10	0	0	0	0	0
Overtime of each process (h)	0	2.0	6.6	0.7	0
Total overtime (h)	9.3