[1]张 博,蒋庆梅,王 经,等. X80管线钢管端环焊缝电弧增材梯度强化结构设计与性能优化研究[J].机械与电子,2026,44(02):92-99.
　ZHANG Bo,JIANG Qingmei,WANG Jing,et al. Design and Performance Optimization of Gradient Reinforcement Structures for Girth Welds in X80 Pipeline Steel Pipe Ends Via Arc Additive Manufacturing[J].Machinery & Electronics,2026,44(02):92-99.
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 X80管线钢管端环焊缝电弧增材梯度强化结构设计与性能优化研究()
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
44
期数:
2026年02期
页码:
92-99
栏目:
智能制造
出版日期:
2026-02-26

文章信息/Info

Title:
 Design and Performance Optimization of Gradient Reinforcement Structures for Girth Welds in X80 Pipeline Steel Pipe Ends Via Arc Additive Manufacturing
文章编号:
1001-2257(2026)02-0092-08
作者:
 张 博1; 蒋庆梅2; 王 经2; 董继鲁3; 蔡志钦3; 肖望强3
 (1.国家石油天然气管网集团有限公司建设项目管理分公司,河北 廊坊 065001;
2.国家管网集团工程技术创新有限公司,天津 300450;
3.厦门大学航空航天学院,福建 厦门 361102)
Author(s):
 ZHANG Bo1; JIANG Qingmei2; WANG Jing2; DONG Jilu3 ; CAI Zhiqin3 ; XIAO Wangqiang3
 (1.Construction Project Management Branch,National Petroleum and Natural Gas Pipeline Network Group Co.,Ltd.,
Langfang 065001,China;2.Pipe China Engineering Technology Innovation Co.,Ltd.,Tianjin 300450,China;
3.School of Aerospace Engineering,Xiamen University,Xiamen 361102,China)
关键词:
X80管线钢; 环焊缝; 电弧增材制造; 梯度强化; 有限元模型
Keywords:
X80 pipeline steel; girth weld; arc additive manufacturing; gradient reinforcement; finite element model
分类号:
TG404;TP391.9
文献标志码:
A
摘要:
 针对X80管线钢管端环焊缝强度韧性失配导致的失效风险,提出了基于电弧增材制造的梯度强化方法,通过优化环焊缝外侧增材层的几何参数及工艺路径,实现应力集中与残余应力的协同调控。首先开展管端增材加厚区尺寸优化设计,通过正交试验确定关键几何参数对应力应变分布的调控作用;其次基于热力相多场耦合理论,建立包含生死单元激活算法的二维动态有限元模型,采用双椭球热源表征电弧增材热力耦合效应,揭示管端增材成形机制及其对环焊缝力学性能的调控规律。实验结果表明,管端采用增材层长度L=150 mm,管壁厚t=30%,过渡角θ=150°增材加厚区尺寸优化后,环焊缝区屈服强度稳定于550 MPa,但混合区冲击功显著提升,热影响区(HAZ)强度跃升至590 MPa,母材横向屈强比较高,存在一定塑性劣化与脆化风险。
Abstract:
 To address the risk of failure caused by strength toughness mismatch in X80 pipeline steel pipe end girth welds,a gradient reinforcement method based on arc additive manufacturing is proposed.This method achieves coordinated control of stress concentration and residual stress by optimizing the geometric parameters and deposition path of the additive layers added externally to the girth weld.Firstly,an optimization design for the dimensions of the additively manufactured thickening zone at the pipe end is conducted,and the orthogonal experiments are used to determine the regulatory effects of key geometric parameters on the stress strain distribution.Secondly,based on the coupled thermal mechanical phase multi field theory,a two dimensional dynamic finite element model incorporating a life death element activation algorithm is established.A double ellipsoid heat source model is employed to characterize the thermo mechanical coupling effect during the process of arc additive manufacturing,revealing the forming mechanism of the pipe end and its regulatory effect on the mechanical properties of the girth welds.Experimental results show that after optimizing the dimensions of the additively manufactured thickening zone with a layer length L =150 mm,wall thickness increment t=30%,and transition angle θ=150°,the strength in the girth weld zone is stabilized at 550 MPa,while the impact energy in the mixed zone increases significantly.The strength in the Heat affected Zone (HAZ) increases to 590 MPa,but the transverse yield to tensile ratio of the base metal is relatively high,indicating potential risks of plasticity degradation and embrittlement.

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备注/Memo

备注/Memo:
 收稿日期:2025-09-04
作者简介:张 博 (1991-),男,吉林四平人,高级工程师,研究方向为工程建设项目质量安全;蒋庆梅 (1986-),女,山东临沂人,硕士,高级工程师,研究方向为油气长输管道工程设计、管材、焊接、检测及标准化;王 经 (1985-),男,河北唐山人,硕士,工程师,研究方向为油气长输管道增材制造、线路工程、管道水工保护与地灾防护、非开挖穿越;董继鲁 (2002-),男,陕西渭南人,硕士,研究方向为机械结构振动;蔡志钦 (1988-),男,福建漳州人,博士,讲师,研究方向为机械设计理论,通信作者,E-mail:caizhiqin@xmu.edu.cn;肖望强 (1981-),男,河北邢台人,工学博士,教授,研究方向为振动冲击控制、超材料设计、新型机械传动等。
更新日期/Last Update: 2026-04-29