Application of response surface methodology to establish friction model of upset forging

In this study, upset forging experiments were performed on various uneven boundary frictional conditions generated using combinations of dies and specimens with differing surface conditions. Experimental points were established based on the experimental results as a regression using the response sur...

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Main Authors: Jia-Jyun Hong, Wei-Ching Yeh
Format: Article
Language:English
Published: SAGE Publishing 2018-03-01
Series:Advances in Mechanical Engineering
Online Access:https://doi.org/10.1177/1687814018766744
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author Jia-Jyun Hong
Wei-Ching Yeh
author_facet Jia-Jyun Hong
Wei-Ching Yeh
author_sort Jia-Jyun Hong
collection DOAJ
description In this study, upset forging experiments were performed on various uneven boundary frictional conditions generated using combinations of dies and specimens with differing surface conditions. Experimental points were established based on the experimental results as a regression using the response surface methodology and three-level full-factorial design of experiments. A regression model was constructed from a second-order model with interactive components by adopting a pointer variable and different qualitative parameters. Furthermore, a general regression model involving both frictional isotropy and anisotropy was constructed to predict the plastic deformation of materials after upset forging. The validity of the general regression model for the deformation of a forged piece was examined by conducting a finite-element analysis using the DEFORM-3D software. The simulation results demonstrate the reliability of the model in predicting the inhomogeneous friction pattern from the observed agreement between the finite-element analysis and experimental results.
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spelling doaj.art-fcb47dd96f5d4a6b9cd1143ce100d8c82022-12-21T23:58:24ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402018-03-011010.1177/1687814018766744Application of response surface methodology to establish friction model of upset forgingJia-Jyun HongWei-Ching YehIn this study, upset forging experiments were performed on various uneven boundary frictional conditions generated using combinations of dies and specimens with differing surface conditions. Experimental points were established based on the experimental results as a regression using the response surface methodology and three-level full-factorial design of experiments. A regression model was constructed from a second-order model with interactive components by adopting a pointer variable and different qualitative parameters. Furthermore, a general regression model involving both frictional isotropy and anisotropy was constructed to predict the plastic deformation of materials after upset forging. The validity of the general regression model for the deformation of a forged piece was examined by conducting a finite-element analysis using the DEFORM-3D software. The simulation results demonstrate the reliability of the model in predicting the inhomogeneous friction pattern from the observed agreement between the finite-element analysis and experimental results.https://doi.org/10.1177/1687814018766744
spellingShingle Jia-Jyun Hong
Wei-Ching Yeh
Application of response surface methodology to establish friction model of upset forging
Advances in Mechanical Engineering
title Application of response surface methodology to establish friction model of upset forging
title_full Application of response surface methodology to establish friction model of upset forging
title_fullStr Application of response surface methodology to establish friction model of upset forging
title_full_unstemmed Application of response surface methodology to establish friction model of upset forging
title_short Application of response surface methodology to establish friction model of upset forging
title_sort application of response surface methodology to establish friction model of upset forging
url https://doi.org/10.1177/1687814018766744
work_keys_str_mv AT jiajyunhong applicationofresponsesurfacemethodologytoestablishfrictionmodelofupsetforging
AT weichingyeh applicationofresponsesurfacemethodologytoestablishfrictionmodelofupsetforging