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A miniature physical simulator for pilgering
Published in Elsevier Ltd
2016
Volume: 237
   
Pages: 126 - 138
Abstract
Pilgering is a complex incremental manufacturing process for seamless tubes. In this work, a miniature physical simulator for pilgering was designed and fabricated. This miniature simulator employs a grooved roll-die and a mandrel and can impose controlled reductions in both tube diameter and wall thickness. Pilgering deformation over a range of ratios of reductions in wall thickness and in tube diameter, known as the Q-factor, was imposed on hemi-cylindrical zirconium alloy specimens. The influence of the Q-factor on the microstructure and deformation texture of the deformed specimens was quantified. A polycrystal plasticity calculation based on the binary tree model was used to simulate texture evolution during the simulated pilgering process. The computer model quantitatively captured the variation with Q of the Kearns factors, as measured in the physically simulated specimen. The small differences noticed between the predicted and experimental final textures point to unaccounted transverse components of the flow field. These observations suggest that physical and/or computer simulations can form the basis of a rapid methodology for tool selection to realize prescribed post-pilgering textures. © 2016 Elsevier B.V.
About the journal
JournalData powered by TypesetJournal of Materials Processing Technology
PublisherData powered by TypesetElsevier Ltd
ISSN09240136
Open AccessNo
Concepts (16)
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    Binary trees
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    Microstructure
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    Plastic deformation
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    Q factor measurement
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    Simulators
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    Textures
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    Zirconium
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    BINARY TREE MODELS
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    CONTROLLED REDUCTION
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    Deformation texture
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    Manufacturing process
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    Pilgering
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    Polycrystal plasticity
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    TEXTURE EVOLUTIONS
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    TRANSVERSE COMPONENTS
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    Tubing