Essay on Lynchburg Foundry

965 Words Sep 7th, 2012 4 Pages
Lynchburg Foundry: The Ductile Dilemma

Understanding the Numbers: 1. Study Exhibits 1, 2, and 3 and answer the following: a. What is the per ton cost of ductile iron casting at the Lynchburg Plant? At the Archer Creek Plant? At the Radford Plant?

Lynchburg Plant | Archer Creek Plant | Radford Plant | $194.91 | $189.25 | $222.05 |

b. What percentage of ductile iron can be recycled (i.e. ductile iron return that is generated) from each charge at the Lynchburg Plant? At the Archer Creek Plant? At the Radford Plant?

Lynchburg Plant | Archer Creek Plant | Radford Plant | 900 lbs. | 1840 lbs. | 600 lbs. |

c. What is the average percent of ductile iron return in the total raw material used in a
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g. How many tons of ductile iron return are available for transfer from the two castings plants (Lynchburg and Archer Creek) to the pipe-making plant (Radford)? Explain how the Excess Available for the Radford Plant was calculated.

* Exhibit 5 shows us that there is 51,600 tons of ductile iron return available from the casting plants to be transferred to the pipe making plant in Radford. The excess ductile iron return available from the Radford plant can be calculated by taking the ductile iron return tonnage available for the Lynchburg and Archer Creek plant and subtracting the amount necessary for the 40% of charge. This left you with the excess available for the Radford Pant which is 6,000 tons.

3. What is the most expensive raw material for castings and for pipe-making?
How is the charge mix for castings different than the charge mix for pipe-making? * The most expensive raw material for the Lynchburg castings is the Pig Iron. * Pipe charges are different from castings charges for two reasons. The chemical composition of ductile iron pipe is different from ductile iron castings, and the pipe-making process has a higher yield (over 80% vs. 50% to 60%) than the castings process, therefore leaving less ductile iron return available for remelting.

4. Provide an economic analysis that calculates the