Improvement in Ovality of Pipeline Steel X80 with Weld Power under Multi-Wire SAW Welding Process

Abstract:

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Pipeline steel X80 is a kind of advanced high grade steel and commonly used in long-distance transportation of oil and gas. Ovality of the pipe plays key role in improving its crushing strength. In this paper, a simulation method is proposed to improve the performance of ovality of X80 Pipeline Steel. First, a 3D thermo-mechanical coupled finite element model of the multi-wire SAW welding processes is built using MSC.MARC, upon which parameters of double ellipsoid heat source model is determined. Then, the relationship between weld power and ovality is studied under difference process inputs and a satisfactory weld power is found to decrease the ovality of the pipeline steel. Finally, validation and prediction of deformation and ovality of the pipeline is carried out via plate welding experiments.

Info:

Periodical:

Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He

Pages:

1823-1831

DOI:

10.4028/www.scientific.net/AMR.239-242.1823

Citation:

Y. B. Li et al., "Improvement in Ovality of Pipeline Steel X80 with Weld Power under Multi-Wire SAW Welding Process", Advanced Materials Research, Vols. 239-242, pp. 1823-1831, 2011

Online since:

May 2011

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Price:

$35.00

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