Study on Free Bending Spiral Forming Process of 6061 Aluminum Alloy Tube

LI Tao; CHEN Hao; WEI Wenbin; TAO Jie

doi:10.16080/j.issn1671–833x.2019.16.064

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Study on Free Bending Spiral Forming Process of 6061 Aluminum Alloy Tube

更新时间：2025-10-30

- Study on Free Bending Spiral Forming Process of 6061 Aluminum Alloy Tube
- Aeronautical Manufacturing Technology Vol. 62, Issue 16, Pages: 64-71(2019)
- 作者机构：
  
  南京航空航天大学材料科学与技术学院,南京,210016
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671–833x.2019.16.064
  CLC：
- Published：2019
- 稿件说明：
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李涛，陈浩，魏文斌，陶杰. 6061铝合金管自由弯曲螺旋成形工艺研究[J]. 航空制造技术, 2019, 62(16): 64-71.

LI Tao, CHEN Hao, WEI Wenbin, TAO Jie. Study on Free Bending Spiral Forming Process of 6061 Aluminum Alloy Tube. Aeronautical Manufacturing Technology, 2019, 62(16): 64-71.
李涛，陈浩，魏文斌，陶杰. 6061铝合金管自由弯曲螺旋成形工艺研究[J]. 航空制造技术, 2019, 62(16): 64-71. DOI： 10.16080/j.issn1671–833x.2019.16.064.

LI Tao, CHEN Hao, WEI Wenbin, TAO Jie. Study on Free Bending Spiral Forming Process of 6061 Aluminum Alloy Tube. Aeronautical Manufacturing Technology, 2019, 62(16): 64-71. DOI： 10.16080/j.issn1671–833x.2019.16.064.

摘要

主要通过数值模拟与试验相结合的方法研究螺距以及螺旋直径的变化对6061 铝合金螺旋管成形工艺的影响，发现在螺距一定时，螺旋直径的增大会使螺旋管的截面畸变减轻；螺旋直径一定时，螺距的增大会使螺旋管的截面畸变加重，壁厚中性层的向外偏移量会随着螺旋半径的增大而逐渐减小。基于数值模拟结果得到的实际螺旋管件成形效果良好，螺旋线平滑且接近标准圆，外观尺寸以及截面畸变都与数值模拟结果符合良好，很好地验证了数值模拟对实际试验的良好预测性。

Abstract

In this paper

the effects of pitch and spiral diameter on the forming process of 6061 aluminum alloy spiral tube are studied by numerical simulation and experiment. It is found that when the pitch is constant

the increase of the spiral diameter will reduce the cross-section distortion of the spiral tube; When the spiral diameter is constant

the increase of the pitch will aggravate the cross-section distortion of the spiral tube

and the outward offset of the neutral layer of the wall thickness will gradually decrease as the spiral radius increases. Based on the numerical simulation results

the actual spiral tube forming effect is good

the spiral is smooth and close to the standard circle

and the appearance size and section distortion are in good agreement with the numerical simulation results. It is a good proof of the good predictability of the numerical simulation for the actual experiment.

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