Study on Push-Bending Forming of GH4169 Superalloy Thin-Walled Tube With Small Bending Radius

FANG Jizhao; GUO Wei; CHEN Genfa; YANG Pingchuan; DENG Tao; MENG Xiangnan

doi:10.16080/j.issn1671-833x.2022.10.075

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Study on Push-Bending Forming of GH4169 Superalloy Thin-Walled Tube With Small Bending Radius

更新时间：2025-10-30

- Study on Push-Bending Forming of GH4169 Superalloy Thin-Walled Tube With Small Bending Radius
- Aeronautical Manufacturing Technology Vol. 65, Issue 10, Pages: 75-81(2022)
- 作者机构：
  
  航空工业成都飞机工业（集团）有限责任公司,成都,610092
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.10.075
  CLC：
- Published：2022
- 稿件说明：
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方继钊，郭伟，陈根发，杨坪川，邓涛，门向南. GH4169高温合金薄壁管 1D 弯曲半径冷胀推弯成形研究[J]. 航空制造技术, 2022, 65(10): 75-81.

FANG Jizhao, GUO Wei, CHEN Genfa, YANG Pingchuan, DENG Tao, MENG Xiangnan. Study on Push-Bending Forming of GH4169 Superalloy Thin-Walled Tube With Small Bending Radius[J]. Aeronautical Manufacturing Technology, 2022, 65(10): 75-81.
方继钊，郭伟，陈根发，杨坪川，邓涛，门向南. GH4169高温合金薄壁管 1D 弯曲半径冷胀推弯成形研究[J]. 航空制造技术, 2022, 65(10): 75-81. DOI： 10.16080/j.issn1671-833x.2022.10.075.

FANG Jizhao, GUO Wei, CHEN Genfa, YANG Pingchuan, DENG Tao, MENG Xiangnan. Study on Push-Bending Forming of GH4169 Superalloy Thin-Walled Tube With Small Bending Radius[J]. Aeronautical Manufacturing Technology, 2022, 65(10): 75-81. DOI： 10.16080/j.issn1671-833x.2022.10.075.

摘要

基于冷胀推弯成形技术，设计制造了高温合金管冷胀推弯成形模具，并借助数值模拟分析了 1D 弯曲半径高温合金管冷胀推弯成形过程的变形特点。提出采用不同性能聚氨酯组合填充的方式，成功解决了高温合金管冷胀推弯过程中的塌陷问题。从聚氨酯填料、顶缸压力、润滑条件（摩擦） 3 个方面得出了 GH4169–G52×1.0 规格高温合金管冷胀推弯的最优工艺条件。通过试验验证了工艺参数的准确性，实现了高温合金管冷胀推弯成形的工程化应用。

Abstract

Based on the cold expansion push-bending forming technology

the cold expansion push-bending forming die of superalloy pipe is designed and manufactured

and the deformation characteristics of 1D bending radius superalloy pipe are analyzed with the help of numerical simulation. The combination filling method of polyurethane with different properties is proposed

which successfully solves the collapse problem in the cold expansion push-bending forming process of superalloy pipe. Optimum process parameters of GH4169–G52×1.0 superalloy tube are obtained from three aspects: polyurethane packing

cylinder jacking pressure and lubrication conditions (friction). Accuracy of the process parameters is verified by experiments

and the engineering application of cold expansion push-bending forming of superalloy pipe is realized.

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