Reliability Analysis of Isothermal Forming Hydraulic Press Body Based on FMECA

Abstract

As a special kind of advanced aerospace sheet metal forging equipment, more and more attention has been paid to the design and development of isothermal forming hydraulic press. Failure Modes, Effects and Criticality Analysis (FMECA) mathod is an effective technique to improve the reliability of products. To improve the reliability of isothermal forming hydraulic press, this paper propose FMECA method to predict all potential failure modes, causes and effects in the design stage. Then improvement and preventive measures are accordingly put forward to alleviate or eliminate failure effects. Finally, the reliability of hydraulic press body is improved using the FMECA mathod, which also provides a basis for reliability analysis and design of other systems.