Geometry Optimization of Sleeve Outside Wall and Material Flow During RFSSW

ZHAO Huaxia; LI Dengchang; WANG Yue; JI Shude

doi:10.16080/j.issn1671-833x.2020.03.053

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Geometry Optimization of Sleeve Outside Wall and Material Flow During RFSSW

更新时间：2026-04-17

- Geometry Optimization of Sleeve Outside Wall and Material Flow During RFSSW
- Aeronautical Manufacturing Technology Vol. 63, Issue 3, Pages: 53-58(2020)
- 作者机构：
  
  1. 中国航空制造技术研究院,北京,100024
  2. 沈阳航空航天大学航空宇航学院,沈阳,110136
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2020.03.053
  CLC：
- Published：2020
- 稿件说明：
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赵华夏，李登常，王月，姬书得. RFSSW套筒外壁形貌优化设计及材料流动规律研究[J]. 航空制造技术, 2020, 63(3): 53-58.

ZHAO Huaxia,LI Dengchang,WANG Yue,JI Shude. Geometry Optimization of Sleeve Outside Wall and Material Flow During RFSSW. Aeronautical Manufacturing Technology, 2020, 63(3): 53-58.
赵华夏，李登常，王月，姬书得. RFSSW套筒外壁形貌优化设计及材料流动规律研究[J]. 航空制造技术, 2020, 63(3): 53-58. DOI： 10.16080/j.issn1671-833x.2020.03.053.

ZHAO Huaxia,LI Dengchang,WANG Yue,JI Shude. Geometry Optimization of Sleeve Outside Wall and Material Flow During RFSSW. Aeronautical Manufacturing Technology, 2020, 63(3): 53-58. DOI： 10.16080/j.issn1671-833x.2020.03.053.

摘要

对于回填式搅拌摩擦点焊工艺，套筒的最大下扎位置和套筒回抽路径上容易形成因材料流动不足而导致的孔洞和未填充缺陷，而套筒形貌是影响焊接过程中材料流动的主要因素。提出在套筒外壁开设倾斜凹槽的方法，在试验验证有限元模型正确性的基础上，利用数值模拟的方法对凹槽影响材料流动行为的规律进行分析。研究结果表明：倾斜凹槽有助于提高材料向下流动的速度。随着凹槽宽度增加，材料最大向下流动速度下降而材料高速向下流动的区域变大，当套筒宽度为 0.75mm 时，套筒促进材料向下流动的效果最为明显。

Abstract

For refill fiction stir spot welding

voids and lack of fill defects induced by insufficient material flow are easily formed at the maximum plunging position of sleeve and the movement path of sleeve. The geometry of sleeve is the main factor influencing the material flow during welding. In this paper

the outside wall of sleeve with inclined grooves were designed. On basis of the verification of rightness of finite element model by experiments

the effect of groove on material flow behavior was investigated by numerical simulation. The results show that the inclined groove can heighten the material downward flow velocity. With the increase of groove width

the material downward flow velocity decreases and the material high-speed flow area increases. When the groove width is 0.75mm

the sleeve has the most obvious effect on promoting the downward flow of material.

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