ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Computer simulation can be utilized to predict the property and quality of heat-treatedproducts. The prediction accuracy depends upon the thermal boundary condition and the thermalhistory from which surface heat transfer coefficient (HTC) is derived. Variables studied are thermalboundary and the surface HTC. Zone-based thermal boundary is set with and without edge effect.Lumped heat capacity method is used to predict HTC of silver probe (1st step), then iterativemodification method is applied to the prediction of HTC of SUS304 cylinder (2nd step) and S45Ccylinder itself (3rd step). Using FEM tool of DEFORM-HT combined with lumped heat programLUMPPROB, this research is intended to obtain the number of thermal boundary and iterativemodification step. The higher accuracy is obtained by employing the edge effect of thermal boundary.The 2nd step significantly increases the prediction accuracy of radial distortion and residual stressdistribution. However, 3rd step does not significantly increase the prediction accuracy
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1857.pdf
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