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Home / Questions / Suppose production requirements in Solved Problem 9.2 (see page 396) increase and require a...

Suppose production requirements in Solved Problem 9.2 (see page 396) increase and require a...

Suppose production requirements in Solved Problem 9.2 (see page 396) increase and require a reduction in cycle time from 8 minutes to 7 minutes. Balance the line once again, using the new cycle time. Note that it is not possible to combine task times so as to group tasks into the minimum number of workstations. This condition occurs in actual balancing problems fairly often.

Problem 9.2

A Missouri job shop has four departments—machining (M), dipping in a chemical bath (D), finishing (F), and plating (P)—assigned to four work areas. The operations manager, Mary Marrs, has gathered the following data for this job shop as it is currently laid out (Plan A).

It costs $0.50 to move 1 work piece 1 foot in the job shop. Marrs’s goal is to find a layout that has the lowest material handling cost.

a) Determine cost of the current layout, Plan A, from the data above.

b) One alternative is to switch those departments with the high loads, namely, finishing (F) and plating (P), which alters the distance between them and machining (M) and dipping (D), as follows:

What is the cost of this layout?

c) Marrs now wants you to evaluate Plan C, which also switches milling (M) and drilling (D), below.

What is the cost of this layout?

d) Which layout is best from a cost perspective?

 

Jul 30 2020 View more View Less

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