Research on the Welding Process of Slender Stainless Steel Cylinder

PENG Zejun; LIU Shuai

doi:10.7512/j.issn.1001-2303.2024.06.20

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Research on the Welding Process of Slender Stainless Steel Cylinder
Vol. 54, Issue 6, Pages: 125-130(2024)
Published： 25 June 2024 ，
DOI： 10.7512/j.issn.1001-2303.2024.06.20
稿件说明：

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彭泽军，刘帅.细长不锈钢筒体焊接工艺研究［J］.电焊机，2024，54（6）：125-130.

PENG Zejun, LIU Shuai.Research on the Welding Process of Slender Stainless Steel Cylinder[J].Electric Welding Machine, 2024, 54(6): 125-130.
彭泽军，刘帅.细长不锈钢筒体焊接工艺研究［J］.电焊机，2024，54（6）：125-130. DOI： 10.7512/j.issn.1001-2303.2024.06.20.

PENG Zejun, LIU Shuai.Research on the Welding Process of Slender Stainless Steel Cylinder[J].Electric Welding Machine, 2024, 54(6): 125-130. DOI： 10.7512/j.issn.1001-2303.2024.06.20.

摘要

针对某大型实验装置细长不锈钢筒体产品结构特点及焊接工艺难点，优选焊接方法及工艺参数，提出了筒体焊接结构优化拆分及加工方案。设计带止口定位的UY形接头。利用车床卡盘、中心架、尾座作为细长不锈钢筒体对接焊的装夹固定方案，有效解决了细长不锈钢筒体焊接难组装、难固定、难变位、易歪斜的难题。建立了细长不锈钢筒体对接焊仿真模型，模拟分析弯曲变形规律及焊接变形收缩量，为焊接变形控制、焊前留量、焊接弯曲矫正提供重要的理论依据。提出了基于远端外圆跳动的随焊实时补偿技术，将焊接、检测、弯曲矫正有机融合，大幅提高了加工效率，实际应用表明，随焊实时补偿技术能较好的控制细长不锈钢筒体焊接轴向弯曲变形。

Abstract

In view of the structural characteristics of the slender stainless steel cylinder product and the difficulties of the welding process of a large experimental device

the welding method and welding process parameters are optimized

and the splitting and processing optimization scheme of the slender stainless steel cylinder welding product are proposed. A UY-shaped welding joint with snap position is designed. Using the lathe chuck

center frame and tail seat as the clamp fixing fixture for the slender stainless steel cylinder docking and welding

it effectively solves the difficulties of the slender stainless steel cylinder welding that are difficult to assemble

fix

difficult to change welding orientation and easy to skew. A simulation model of the slender stainless steel cylinder docking welding is established

which simulates the bending deformation law and welding shrinkage in the welding process

which provides an important theoretical basis for welding deformation control

welding pre-residual processing allowance

and welding bending correction. A real-time welding compensation technology based on distal cylindrical beating is proposed to organically fuse welding

detection and bending correction

which greatly improves the machining efficiency. Practical application shows that the real-time welding compensation technology can better control the axial bending deformation of slender stainless steel cylinder.

关键词

细长筒焊接工艺焊接变形焊接模拟

Keywords

slender cylinderwelding processwelding deformationwelding simulation

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