Reliability Assessment Approach Using Failure Mode Analysis in Machining Center

Abstract

The importance of evaluation and establishment during product development process, for the reliability and safety of mechanical system and parts, is getting increased in the field of mechanical and electronic industry. The object of this paper is to suggest the reliability assessment method for machine tools using failure mode analysis and to introduce two web-based analysis programs which save all data related to failure rate, failure mode, and failure component. In order to evaluate the reliability of machine tools, this paper takes three steps: the use of previous database, the failure rate estimation using failure history data, and the failure mode analysis using performance test.

Reliability and Failure Analysis of CNC Machine Based on Element Action

“…And CA methods usually used in electronics and machinery products are Risk priority number (RPN) method and Matrix analysis (MA) method. RPN is more or less a qualitative method, while MA is a kind of quantitative analysis method [7] . As a large number of failure data was accumulated in the process of gear grinding machine researching, this paper adopts Quantified consequence matrix analysis (QCMA) method.…”

Recent development in reliability analysis of NC machine tools

“…Finally, the availability and precision of this method in the analysis and reliability prediction of the hydraulic system of TAED in the machining center were verified by comparing the calculated result of this method with that of the traditional static GO methodology. The objectives of Kim et al's paper are to suggest the reliability assessment method for machine tools using failure mode analysis and to introduce two Web-based analysis programs which save all data related to failure rate, failure mode, and failure component [81]. The failure rate estimation was carried out using failure history data, and the failure mode analysis was performed using a performance test.…”

Technology for Eliminating early Failure of NC Machine Tools

“…Then the logical composition relations and the function between each spare parts of NC machine tools are displayed through the establishment of the product reliability models, which commonly include the functional structure tree model [12], the reliability diagram model, the GO method model [13], the fault tree model [14] and so on. Finally the design FMECA analysis and process FMECA analysis are conducted on the product [15], the potential failure modes and causes can be obtained by analysis, each physical parameter causing these potential failures can be discovered to determine the stress parameter type and level in the reliability test and simulation.…”