Analysis of laminated crack defect in the upsetting process of heavy disk-shaped forgings
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- 作者：Minting Wanga ; b ; wmt@ysu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Dongying Lia ; Fan Wanga ; Xinliang Zanga ; Xuetong Lia ; c ; Hong Xiaoa ; Fengshan Dua ; F.C. Zhangc ; Zhengyi Jiangb ; jiang@uow.edu.au" class="auth_mail" title="E-mail the corresponding author
- 关键词：Heavy disk-shaped forgings ; Laminated crack ; Deformation gradient ; Finite element method ; Stress state
- 刊名：Engineering Failure Analysis
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：59
- 期：Complete
- 页码：197-210
- 全文大小：1661 K
文摘
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Thermo-mechanical coupled simulation model is established in the upsetting of heavy disk-shaped forging.
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Uncoordinated deformation is the main reason of laminated crack defect under tri-lateral compression.
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Combined prediction model of laminated crack defect based on degree of deformation and gradient of deformation speed is proposed.
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The decreasing of friction coefficient is an effective measure to restrain the laminated crack defect.
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