NDLI: A study of reliability improvement of high capacity cooling system for machine tool

Content Provider	IEEE Xplore Digital Library
Author	Sung, Baek Ju Kim, Do Sik
Copyright Year	2014
Description	Author affiliation: Korea Institute of Machinery & Materials (Sung, Baek Ju; Kim, Do Sik)
Abstract	A machine tool is the basis and fundamental equipment of the machinery industry. A machine tool performed the machining and cutting operation over a high-speed rotation of 10,000 rpm. The cooling system plays a role of cooling the high-temperature hydraulic oil in the machine tool. Control of hydraulic oil has deep relationship with productivity and accuracy of the machine tool. In addition, the performance of control accuracy of hydraulic oil, overload cooling operation, and cooling capability are great influence on the reliability of components and whole system because it relates to operation life of the machine tool. In this paper, we draw up governing equations which are composed by combination of electric theories and empirical knowledge. And failure analysis documents such as FMMA(Failure Modes and Mechanisms Analysis), FMECA(Failure Modes, Effects, and Criticality Analysis), and FTA(Fault Tree Analysis) are drew up, to confirm the main failure modes of cooling system, and test items are determined through the QFD(Quality Function Deployment) to evaluate the reliability of prototype. Finally we have proven the propriety of the governing equations by performance test using the cooling system prototype.
Starting Page	2396
Ending Page	2402
File Size	858446
Page Count	7
File Format	PDF
ISBN	9781479951628
DOI	10.1109/ICEMS.2014.7013891
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-22
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Refrigerants Machine tools Reliability Heating Equations
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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