Investigation of the Mandrel’s Stress States and Wear Conditions during Tube Hot Extrusion of IN690 Superalloy

Jing Yang; Qing Jun Zhou; Chao Yang Sun; Dong Liu

doi:10.4028/www.scientific.net/KEM.622-623.111

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Environmental Comparison between a Hot Extrusion Process and Conventional Machining Processes through a Life Cycle Assessment Approach
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Investigation of the Mandrel’s Stress States and Wear Conditions during Tube Hot Extrusion of IN690 Superalloy
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 622-623Investigation of the Mandrel’s Stress States and...

Investigation of the Mandrel’s Stress States and Wear Conditions during Tube Hot Extrusion of IN690 Superalloy

Abstract:

A 2D axi-symmetric finite element model for tube hot extrusion process has been established by consideration of the billet transfer, glass lubrication, constitutive equation of IN690 superalloy and modified Archard wear model. The influence of extrusion process parameters on the stress state and wear conditions of the mandrel surface has been investigated. The results show that under the optimal extrusion process parameters of the extrusion speed of 250 mm/s, the friction factor of 0.05 and the billet preheating temperature of 1250 ̊C, the mandrel can be reused 200 times when it is fixed and 500 times when it moves with the ram.

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Periodical:

Key Engineering Materials (Volumes 622-623)

Pages:

111-118

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.622-623.111

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Online since:

September 2014

Authors:

Jing Yang*, Qing Jun Zhou, Chao Yang Sun, Dong Liu

Keywords:

IN690 Superalloy, Mandrel, Stress States, Tube Hot Extrusion, Wear Conditions

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* - Corresponding Author

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