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2 years ago

Part X requires machining on a milling machine (operations A and B are required).

Business

1 answer:

Inga [223]2 years ago

5 0

Answer:atleast 5 machines

Explanation:

Quantity required (Q) = 3000

Maintainace due = 500 parts

3000 / 500 = 5 = 6 Maintainace

Repair time = 6 × 30 minutes = 300 minutes = 5 hours.

operation time = 5 × 18 × 60 = 5400 minutes

Total operation time = Total operation hours - repair time

5400 - 300 = 5100 hours

For A:

(Standard time × Q) / (reliability × time efficiency × scrap × total working hours)

(3 × 3000) / (. 95×.95×5100)

9000/4602.75 = 1.96

For B:

(Standard time × Q) / (reliability × time efficiency × scrap × total working hours)

(5 × 3000) / (.95×.9×5100)

15000/4360.5 = 3.44

(1.96 + 3.44) = 166.56

=5. 4

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