Predicting Welding Deformation of Exposed Forged-and-welded Gear by the Integrated Computational Approach

Qu Tie; Xin Wen; Luo Wenze; Wang Chongyang; Hu Long; Huang Zhiquan; Deng Dean

doi:10.16578/j.issn.1004.2539.2023.03.018

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Predicting Welding Deformation of Exposed Forged-and-welded Gear by the Integrated Computational Approach

Development·Application | 更新时间：2023-03-29

- Predicting Welding Deformation of Exposed Forged-and-welded Gear by the Integrated Computational Approach
- Journal of Mechanical Transmission Vol. 47, Issue 3, Pages: 124-132(2023)
- 作者机构：
  
  1.中信重工机械股份有限公司，河南洛阳 471039
  2.矿山重型装备国家重点实验室，河南洛阳 471003
  3.重庆大学材料科学与工程学院，重庆 400045
  4.郑州机械研究所有限公司，河南郑州 450001
- 作者简介：
- 基金信息：
- DOI：10.16578/j.issn.1004.2539.2023.03.018
  CLC：
- Published：15 March 2023，
  
  Received：02 December 2022，
  
  Revised：03 January 2023，
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瞿铁,信稳,骆文泽等.采用集成计算方法预测开式锻焊齿轮的焊接变形[J].机械传动,2023,47(03):124-132.

Qu Tie,Xin Wen,Luo Wenze,et al.Predicting Welding Deformation of Exposed Forged-and-welded Gear by the Integrated Computational Approach[J].Journal of Mechanical Transmission,2023,47(03):124-132.
瞿铁,信稳,骆文泽等.采用集成计算方法预测开式锻焊齿轮的焊接变形[J].机械传动,2023,47(03):124-132. DOI： 10.16578/j.issn.1004.2539.2023.03.018.

Qu Tie,Xin Wen,Luo Wenze,et al.Predicting Welding Deformation of Exposed Forged-and-welded Gear by the Integrated Computational Approach[J].Journal of Mechanical Transmission,2023,47(03):124-132. DOI： 10.16578/j.issn.1004.2539.2023.03.018.

摘要

以直径为7 160 mm的大型开式锻焊齿轮为研究对象，采用集成计算方法预测了齿轮在焊接制造过程中产生的变形。基于MSC.Marc通用有限元软件平台，从齿轮结构中抽取了3个典型焊接接头，采用热-弹-塑性有限元方法计算了各个接头在多层多道焊接条件下的固有变形，即纵向收缩、横向收缩和角变形；将各个焊接接头的固有变形转化为固有应变，采用基于固有应变的弹性有限元方法计算了开式锻焊齿轮的整体焊接变形。数值模拟结果表明，大型锻焊齿轮在焊接制造后，直径方向收缩量约为11 mm，周向收缩量约为3 mm。

Abstract

In the current study

a large exposed forged-and-welded gear with a diameter of 7 160 mm is taken as the research object. An integrated computational approach is employed to predict the total welding deformation of the gear during welding process. Based on software MSC. Marc

three typical welded joints are extracted from the large forged-and-welded gear structures

and the inherent deformations of each joint under multi-pass welding conditions

are calculated by the thermo-elastic-plastic finite element method. The inherent deformations of each welded joint are converted into the corresponding inherent strains

and the total welding deformation of the welded gear is calculated using the elastic finite element method based on inherent strain theory. The numerical simulation results show that the radial shrinkage of the large forged-and-welded gear is about 11 mm after welding

and the amount of contraction in the circumference direction is about 3 mm.

关键词

开式锻焊齿轮多层多道焊焊接变形固有应变数值模拟

Keywords

Exposed forged-and-welded gearMulti-pass weldingWelding deformationInherent strainNumerical simulation

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