The simulation study of the linear mark generating process in the stretch reducing

Xu, Zhiqiang; Du, Feng; Wang, M.T.

doi:10.1016/j.jmatprotec.2006.11.073

Cited by 4 publications

(1 citation statement)

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“…To improve the inner and exterior surfaces quality of the seamless tube and get the homogeneous wall thickness, the process of hot continuous free floating mandrel rolling and stretch-reducing has been widely studied [8,9]. With the aid of FEM, the formation machanism of bore hexagonal shape and linear mark of seamless tube in stretch reducing rolling process have been presented [10,11].…”

Section: Introductionmentioning

confidence: 99%

A Study of Formation Mechanism of the Spiral Mark Defect in Cone-Type Rotary Piercing Process

Huang

Wang

2009

AMM

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The spiral mark is one of the quality defects on the tube surface in cone-type rotary pericing process. In this paper, the numerical simulation study was carried out for cone-type rotary piercing process using rigid-plastic finite element method. From the simulation results, the axial load applied on piercing plug and mandrel bar were then obtained. Taking the elastic deformation of mandrel bar into consideration, the variation of plug location under axial load during pericing process and the non-homogeneous wall thickness were investigated. The formation mechanism of the spiral mark on the tube surface can be found in the obtained results.

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Section: Introductionmentioning

confidence: 99%