30CrMnSiA与1Cr18Ni9Ti异种钢TIG自动焊工艺研究

Study on the TIG Automatic Welding Process of Dissimilar Steel of 30CrMnSiA and 1Cr18Ni9Ti

岳海金 ¹房冬青 ¹邹鹤飞 ¹彭铮 ¹周栓 ¹李文武 ¹崔新浩¹

扫码查看

作者信息

1. 首都航天机械有限公司,北京 100076
折叠

摘要

本文针对30CrMnSiA和1Cr18Ni9Ti异种钢焊接难点,开展TIG自动焊接工艺研究.采用TIG自动焊工艺所获得的焊接接头表面及内部质量均无缺陷.通过对焊缝显微组织进行分析,1Cr18Ni9Ti侧热影响区组织晶粒粗化,而30CrMnSiA侧热影响区出现了比母材细小的组织.经力学性能测试发现室温拉伸强度接近于1Cr18Ni9Ti母材,应用TIG自动焊接工艺能够获得良好的力学性能.

Abstract

In this paper,TIG automatic welding process was studied aiming at the difficulties in welding 30CrMnSiA and 1Cr18Ni9Ti dissimilar steel.There was no defect on the surface and internal quality of welding joint obtained by TIG automatic welding process.The microstructure of weld was analyzed,and the grain coarsening in the heat affected zone of 1Cr18Ni9Ti side was found in the heat affected zone of 30CrMnSiA.It was found that the tensile strength at room temperature was close to 1Cr18Ni9Ti parent material.Good mechanical properties can be obtained by using TIG automatic welding process.

关键词

TIG自动焊/异种钢/显微组织/力学性能

Key words

TIG automatic welding/dissimilar steel/microtissue/mechanical properties

引用本文复制引用

出版年

2024

航天制造技术

首都航天机械公司

航天制造技术

影响因子：0.318

ISSN：

参考文献量7

段落导航