A company is producing a batch of five components, A, O, E, N and L using three machines X, W, M. All these parts are to be produced in the technological order X, M, W machines. The sum of the processing and set-up times, in minutes for these parts in eachd of these machines are given below:
|
Component
|
Time of machines, minutes
|
|
X
|
W
|
M
|
|
N
|
8
|
5
|
3
|
|
A
|
4
|
6
|
4
|
|
O
|
7
|
7
|
3
|
|
L
|
5
|
8
|
4
|
|
E
|
6
|
4
|
4
|
- Find the sequence in which parts are to be produced to minimize total make span. 10
- Are there alternative sequences? 4
- Represent your schedule in the form of a Gantt chart with starting and ending timings. Neglect machine to machine shifting time. 10
- What are the machine utilisation percentages for each machine if no other job is taken till the completion of this batch. 8