Friction Pull Plug Welding Process of 2219 Aluminum Alloy

LU Peng; CUI Lei; WANG Huimiao; CHEN Yongliang; WANG Dongpo; SUN Zhuanping; SONG Jianling; ZHANG Zhongping

doi:10.16080/j.issn1671–833x.2019.12.055

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Friction Pull Plug Welding Process of 2219 Aluminum Alloy

更新时间：2025-10-30

- Friction Pull Plug Welding Process of 2219 Aluminum Alloy
- Aeronautical Manufacturing Technology Vol. 62, Issue 12, Pages: 55-64(2019)
- 作者机构：
  
  1. 天津大学材料科学与工程学院,天津,300350
  2. 首都航天机械公司,北京,100044
  3. 天津航天长征火箭制造有限公司,天津,300462
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671–833x.2019.12.055
  CLC：
- Published：2019
- 稿件说明：
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卢鹏，崔雷，王惠苗，陈永亮，王东坡，孙转平，宋健岭，张忠平. 2219铝合金拉锻式摩擦塞补焊工艺研究[J]. 航空制造技术, 2019, 62(12): 55-64.

LU Peng, CUI Lei, WANG Huimiao, CHEN Yongliang, WANG Dongpo, SUN Zhuanping, SONG Jianling, ZHANG Zhongping. Friction Pull Plug Welding Process of 2219 Aluminum Alloy. Aeronautical Manufacturing Technology, 2019, 62(12): 55-64.
卢鹏，崔雷，王惠苗，陈永亮，王东坡，孙转平，宋健岭，张忠平. 2219铝合金拉锻式摩擦塞补焊工艺研究[J]. 航空制造技术, 2019, 62(12): 55-64. DOI： 10.16080/j.issn1671–833x.2019.12.055.

LU Peng, CUI Lei, WANG Huimiao, CHEN Yongliang, WANG Dongpo, SUN Zhuanping, SONG Jianling, ZHANG Zhongping. Friction Pull Plug Welding Process of 2219 Aluminum Alloy. Aeronautical Manufacturing Technology, 2019, 62(12): 55-64. DOI： 10.16080/j.issn1671–833x.2019.12.055.

摘要

针对6~8mm 厚2219–T87 铝合金拉锻式摩擦塞焊工艺进行了研究。结果表明，塞棒/ 塞孔及砧板成形孔结构及轴向载荷、焊接转速、进给速度等焊接工艺参数均对焊接质量有重要影响。采用圆弧形塞棒、圆柱形塞孔、阶梯锥形底孔的砧板能够改善塞孔附近材料的流动方向和受力条件，进而消除未焊合缺陷。焊接转速7000r/min、焊接压力20~30kN、轴向拉锻力20~30kN、进给速度1.5mm/s是较优的焊接工艺范围。焊接接头中母材侧的热力影响区软化最为明显，硬度值为79.9HV。在优化参数下，焊接接头的抗拉强度可达365MPa，延伸率6%。

Abstract

In the study

friction pull plug welding (FPPW) process of 6–8mm thick 2219–T87 aluminum alloy was discussed. The results show that the structure of the plug and hole

the forming hole and the main welding parameters (axial load

welding speed and feed speed) have important influence on the weld formation. The use of circular arc-shaped plug rod

cylindrical plug hole and stepped tapered bottom hole can improve the flow direction and stress conditions of the base material and eliminate the unwelded defects. The welding speed is 7000r/min

the welding pressure is 20kN

the axial forging force is 20–30kN

and the feeding speed is 1.5mm/s. In the welded joint

the softening in the thermal mechanically affect zone on the base material side is the most obvious

and the hardness value is 79.9HV. Under the optimized parameters

the tensile strength of the welded joint can reach 365MPa

and the elongation is 6%

which is equivalent to 80% of the base metal.

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