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http://dx.doi.org/10.3795/KSME-A.2003.27.4.614

A Study on Hot Deformation Behavior of Bearing Steels  

Moon, Ho-Keun (FAG한화베어링㈜ 연구소)
Lee, Jae-Seong (FAG한화베어링㈜ 연구소)
Yoo, Sun-Joon (포스코㈜ 기술연구소 후판연구팀)
Joun, Man-Soo (경상대학교 기계항공공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.27, no.4, 2003 , pp. 614-622 More about this Journal
Abstract
In this paper, the stress-strain curves of bearing steels at hot working conditions are obtained by hot compression test with a computer controlled servo-hydraulic Gleeble 3800 testing machine and elongations and reductions of area of the bearing steels are also obtained by hot tensile test with a Gleeble 1500 testing machine. Experiments are conducted under the various strain-rates and temperatures and their results are used to obtain the flow stress information. A rigid thermo-viscoplastic finite element method is applied to the multi-stage hot forging process in order to predict temperature distribution of workpiece. The experimental results and the analysis results are used to obtain an optimal hot forging condition.
Keywords
Hot Forging Process; Bearing Steel; Stress-Strain Curve; Hot Compression; Hot Tensile Test; Rigid Thermo-Viscoplastic Finite Element Method;
Citations & Related Records
Times Cited By KSCI : 10  (Citation Analysis)
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