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In: Mechanical Engineering

The Tools Company uses a lathe to machine an aluminum block. The operation time is 5...

The Tools Company uses a lathe to machine an aluminum block. The operation time is 5 minutes. On average, the lathe requires maintenance after 200 parts. The average maintenance time is about 2 hours. (For the purpose of these calculations, maintenance is the same as failure.

A.) What is the production rate of the machine in parts per minute? (Round to 3 decimal places)

B.) Continuing from Part 1, the next operation after turning (lathe operation), is a milling operation. The operation time at the milling machine is 4 minutes. Its mean time to fail is 30 hours and its mean time to repair is 5 hours. Any amount of parts can be stored in between the lathe and the mill. At what rate material on average will accumulate in the storage area in terms of parts per minute? (Round to 3 decimal places)

C).Continuing from Part 2. What is the production rate of this two-machine line in terms of parts per minute? (Round to 3 decimal places)

D.) Continuing from Part 3. Now a third and final operation is added to the line. This is a manual polishing operation that removes the burrs generated from the machining processes. The operation time is 10 minutes, and the worker takes a break on average every 18 parts. The breaks typically last 15 minutes on average. What is the production rate of this line assuming the buffers in between the machines are infinite in parts per minute (Round to 3 decimal places)?

E) What is the rate of material accumulation in the line in parts per minute? (Round to 3 decimal places)

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samet mamat answered 2 years ago
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