Consider an assembly work cell consisting of 2 machines and 1 worker. Suppose ea
ID: 375667 • Letter: C
Question
Consider an assembly work cell consisting of 2 machines and 1 worker. Suppose each machine needs to be adjusted before it can be used to produce a unit. The setup times (in seconds) of the machines and the times (in seconds) for the machines to process a component are listed in the following table.
Workstation
Processing time per unit (in seconds)
Setup Time (in seconds)
A
100
20
B
90
10
Suppose the worker cycle time is 80 seconds. What is the cycle time (in seconds) of the cell? Please provide at least one step of calculation and the correct answer for full credit. (4 points)
Workstation
Processing time per unit (in seconds)
Setup Time (in seconds)
A
100
20
B
90
10
Explanation / Answer
Each cell consists of following sequence
Machine A -------> Machine B ---------> Worker
Total time of the cell = Time taken by component in machine A + Time taken by component in machine B + Time taken by worker
Time taken by a compenent in mahchine A = Setup time + process time = 120 seconds
Time taken by a compenent in mahchine B = Setup time + process time = 100 seconds
Total cycle time of cell = 120+100+80 = 300 seconds