EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF ALUMINUM ALLOY WELDED STRUCTURE

ZHANG Ming; FANG YanHua; FANG ZiFan; KONG Bo; WU ZuShuang; ZHAO GuangWei

doi:10.16579/j.issn.1001.9669.2021.03.011

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EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF ALUMINUM ALLOY WELDED STRUCTURE

更新时间：2022-09-22

- EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF ALUMINUM ALLOY WELDED STRUCTURE
- Journal of Mechanical Strength Vol. 43, Issue 3, Pages: 582-588(2021)
- 作者机构：
  
  1. 广东电网有限责任公司佛山供电局
  2. 佛山电力设计院有限公司
  3. 三峡大学机械与动力学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.03.011
  CLC：
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ZHANG Ming, FANG YanHua, FANG ZiFan, et al. EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF ALUMINUM ALLOY WELDED STRUCTURE. [J]. 43(3):582-588(2021)
DOI：

ZHANG Ming, FANG YanHua, FANG ZiFan, et al. EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF ALUMINUM ALLOY WELDED STRUCTURE. [J]. 43(3):582-588(2021) DOI： 10.16579/j.issn.1001.9669.2021.03.011.

摘要

以铝合金焊接结构为研究对象,通过力学试验与有限元分析方法对焊接结构性能进行研究。选择5083、6061、6063、6082四种铝合金材料,采用TIG焊接方法对铝合金结构进行焊接,通过拉伸和硬度试验以及有限元分析方法,对四种铝合金材料、I型坡口和V型坡口、ER5356与ER5087焊丝、单面搭接和双面搭接连接方式等材料及其焊接工艺进行了对比研究,给出了6061铝合金构件的破坏准则,进行了一节塔身焊接结构压缩试验。结论表明:ER5356与ER5087焊丝的焊接性能相差不大、V型坡口和双面搭接焊接方式最好,6061铝合金材料焊接结构的屈服强度为202MPa、抗拉强度为290 MPa,一节塔身结构的最大允许应力为铝合金焊接结构的60%,不会发生破坏。研究工作为进一步探索铝合金焊接结构在输电杆塔结构中的应用打下基础。

Abstract

Taking the aluminum alloy welded structure as the research object,the mechanical test and finite element analysis were used to study the performance of the welded structure. Four kinds of aluminum alloy materials,5083,6061,6063 and 6082,were selected for TIG welding,Through tensile test,hardness test and finite element analysis,four kinds of aluminum alloy materials,I-groove and V-groove,ER-5356 and ER-5087 welding wires,single lap and double lap connection methods and their welding processes are co MPared. A section of tower structure compression test is carried out. The results show that the welding properties of ER-5356 and ER-5087 are similar,V-groove and double lap welding are the best. The yield strength and tensile strength of 6061 aluminum alloy welding structure are 202 MPa and 290 MPa. The maximum allowable stress of a section of tower body is 60% of that of aluminum alloy welded structure. This research work lays a foundation for further exploring the application of aluminum alloy welded structure in transmission tower structure.

关键词

铝合金焊接结构力学试验硬度测试应力应变关系有限元分析

Keywords

Aluminum alloy welded structureMechanical testHardness testStress-strain relationshipFinite element analysis

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