Study on Cold Expansion Process of High Pressure Components

Shi Jin Zhang; Yan Li Wang; Feng Ling Yang

doi:10.4028/www.scientific.net/AMM.312.469

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 312Study on Cold Expansion Process of High Pressure...

Study on Cold Expansion Process of High Pressure Components

Abstract:

In high pressure water jet field, most components worked under very high fluctuated pressure. The high and fluctuated pressure would fail those components quickly, which leads to very short period of fatigue life for high pressure components. Cold expansion process could improve components fatigue properties greatly. This has been known for a while. By applying this process in high pressure field, much longer service time is expected. This paper investigated the cold expansion process experimentally. Based on micro-structure investigation, the strengthening mechanism has been explored.

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Periodical:

Applied Mechanics and Materials (Volume 312)

Pages:

469-474

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.312.469

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Online since:

February 2013

Authors:

Shi Jin Zhang, Yan Li Wang, Feng Ling Yang

Keywords:

Cold Expansion Process, Cylinder, Fatigue Properties, High Pressure Component, Mandrel

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