• Proceedings of the Korean Society of Precision Engineering Conference
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• 2003.10a
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• pp.198-198
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• 2003

• Transactions of the Korean Society of Mechanical Engineers A
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• v.29 no.3 s.234
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• pp.477-483
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• 2005

A propeller has been considered as one of the most critical elements in propelling ships. However, only a little research on the marine propeller has been carried out. Furthermore, fractures of the propeller have been frequently caused by fatigue, but only tensile strength, yield strength and elongation are discussed in Register of Shipping. For the above reasons, we have evaluated strength properties of A1BC3 and HBsC1, both which have been used for the marine propeller by using air jet chisel and then, presented a method of improving the strength.

• Journal of the Korean Society for Precision Engineering
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• v.21 no.3
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• pp.124-131
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• 2004

It is inevitable that corrosion pits have occurred on the marine propeller. If corrosion pits have occurred on the blades, they have been repaired by simple welding methods. It must be that the strength is degraded in this process. In this paper, we analyzed and compared the strength of A1BC3 and HBsCl used for marine propeller after repairing the artificial pit by several different methods.