Estimated Navy Cost Avoidance:
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Minimum annual:
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$ 900 K
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Minimum 15 Year:
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$ 13,500 K
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| The laboratory demo of the ESD process on an actuator rod has been completed. Some areas of incomplete metallurgical mixing were noted, which could lead to crevice corrosion. The results are currently under study. |
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Problem:
| Many vital shipboard control systems, such as rudders and diving planes, are driven by hydraulic rams. When these rams are scored or damaged, they must be removed, repaired ashore and then returned and re-installed on the ship. |
Solution:
| Electrospark deposition (ESD) shows promise as being an acceptable way to perform onboard ship repairs of these large, critical devices. MTTC and NSWC/CD will perform this effort. |
Fleet Impact:
| While damage to hydraulic rams may not be preventable, repair using ESD could save as much as 75% of the current time used to repair ashore. It also avoids additional damage caused while moving the rams around. |
Applications:
| Surface Ship and Submarine hydraulic rams used in all applications. |
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