锻压技术

TC4钛合金大规格环件挤-辗复合成形工艺

英文标题：Extrusion-rolling composite forming process of TC4 titanium alloy large-scale ring parts

作者：陈献刚秦瑞廷刘正伟雷丙旺

分类号：TG376.9

出版年,卷(期):页码：2025,50(3):225-230

摘要：

TC4钛合金大规格环件挤-辗复合成形工艺较传统方式可有效降低制造成本，通过挤压数值模拟仿真及缩比工艺验证，并依托1.5万吨制坯机及3.6万吨垂直挤压机开展了TC4合金铸锭反挤压冲孔制坯-大口径厚壁管材挤压的研究与试制，突破了钛合金铸锭“包套+保温垫块包覆”制坯等关键技术。挤-辗复合制备的典型航空发动机机匣环件的低倍组织、室温力学性能、高温力学性能（400 ℃）等各项指标均符合技术要求，有效解决了钛合金铸锭传统锻造表面褶皱、裂纹问题，并充分发挥了重型挤压设备“三向压应力一次大变形”的技术优势，得到了TC4钛合金大口径管材，为解决传统TC4钛合金大型制件锻造火次多、坯料质量一致性差等问题提供了新的技术途径。

The extrusion-rolling composite forming process of large-scale TC4 titanium alloy ring parts effectively reduces the manufacturing cost compared with the traditional method. Therefore, through extrusion numerical simulation and scaled-down process verification, and relying on a 15000 t billet making machine and a 36000 t vertical extruder, the billet making by reverse extrusion punching and the extrusion of large-diameter thick-walled tube for TC4 alloy ingot were research and trial produced. The results show that breakthroughs are made in key technologies such as the billet making of “jacketing + insulation pad coating” for titanium alloy ingot billet making. The low-magnification structure, room temperature mechanical properties, high temperature mechanical properties (400 ℃) and other indicators of typical aircraft engine casing ring prepared by extrusion-rolling composite all meet the technical requirements, effectively solving the problems of surface wrinkles and cracks in traditional forging of titanium alloy ingot, and giving full play to the technical advantages of “three-directional compressive stress and one-time large deformation” of heavy-duty extrusion equipment to obtain large-diameter tube of TC4 titanium alloy, providing a new technical approach to solve the problems of traditional TC4 titanium alloy large-scale forgings with many forging times and poor billet quality consistency.

基金项目：

作者简介：陈献刚（1984-），男，硕士，正高级工程师 E-mail：289057628@qq.com

参考文献：

[1]弭光宝, 孙圆治, 吴明宇, 等. 机器学习在航空发动机钛合金研究中的应用进展[J]. 航空制造技术, 2024, 67(1/2): 66-78.

Mi G B, Sun Y Z, Wu M Y, et al. Applications of machine learning on aeroengine titanium alloys[J]. Aeronautical Manufacturing Technology, 2024, 67(1/2): 66-78.

[2]朱知寿，商国强，王新南，等. 低成本高性能钛合金研究进展[J]. 钛工业进展，2012，29(6): 1-5.

Zhu Z S，Shang G Q，Wang X N，et al. Research and development of low cost and high performance titanium alloys[J].Titanium Industry Progress,2012，29(6): 1-5.

[3]颜鸣皋,吴学仁,朱知寿.航空材料技术的发展现状与展望[J].航空制造技术，2003 (12): 19-25.

Yan M G, Wu X R, Zhu Z S. Recent progress and prospects for aeronautical material technologies[J].Aeronautical Manufacturing Technology,2003 (12): 19-25.

[4]杨佩,康聪,李维.TC4钛合金工艺进展[J].湖南有色金属,2020,36(1):45-47,60.

Yang P, Kang C, Li W.Progress in TC4 titanium alloy processing[J].Hunan Nonferrous Metals,2020,36(1):45-47,60.

[5]赵永庆，魏建峰，高占军，等.钛合金的应用和低成本制造技术 [J]. 材料导报，2003(4): 5-7.

Zhao Y Q,Wei J F, Gao Z J, et al. Titanium alloys: Current status of application and low cost manufacturing technologies[J].Materials Reports,2003（4）: 5-7.

[6]GJB 2220A—2018，航空发动机用钛合金饼、环坯规范[S].

GJB 2220A—2018，Specification for titanium alloy pancake and ring stocks for aeroengines[S].

[7]王清峰，孙磊，初冠南.大型复杂多腔挤压件校形工艺数值模拟与实验研究[J].锻压技术，2023，48(5)：282-286.

Wang Q F，Sun L，Chu G N. Numerical simulation and experimental study on correction process for large complex multicavity extruded parts [J]. Forging & Stamping Technology，2023，48(5)：282-286.

[8]蔡钟满,陈家瑞,李勇,等.扩散连接TC4钛合金热变形特性及建模[J].锻压技术,2024,49(7):264-272.

Cai Z M，Chen J R，Li Y，et al.Hot deformation characteristics and modeling of diffusion bonding TC4 titanium alloy[J]. Forging & Stamping Technology，2024，49(7)：264-272.

[9]王美晨, 储双杰, 梁高飞, 等. TC4 钛合金热轧过程中组织演变和性能控制机理研究及展望 [J]. 塑性工程学报, 2024, 31 (9): 1-22.

Wang M C, Chu S J, Liang G F, et al. Research and prospect on mechanism of tissue evolution and property control of TC4 titanium alloy during hot rolling process [J]. Journal of Plasticity Engineering, 2024, 31 (9): 1-22.

[10]要思禹,于洋,刘强,等.油井管用Ti-6Al-4V-05Nb-05Ni钛合金高温流变形行为及热加工图研究[J].稀有金属,2024,48(11):1574-1581.

Yao S Y, Yu Y, Liu Q,et al. Thermal deformation behavior and processing map of Ti-6Al-4V-05Nb-05Ni alloy for oil well pipe [J].Chinese Journal of Rare Metals,2024,48(11):1574-1581.

[11]赵锋, 王啸, 郭树祥.α+β两相型钛合金TC4低成本制备及防护性能研究[J].中国材料进展, 2024, 43(11): 1030-1034.

Zhao F, Wang X, Guo S X. Low cost preparation and protective properties of α+β twophase titanium alloy TC4[J] . Materials China, 2024, 43(11): 1030-1034.

[12]李峰丽，张明玉，于成泉，等.包覆叠轧TC4钛合金薄板的组织与力学性能[J].锻压技术，2023，48(4)：138-145.

Li F L，Zhang M Y，Yu C Q，et al. Microstructure and mechanical properties of TC4 titanium alloy thin sheet by claddingrolling [J]. Forging & Stamping Technology，2023，48(4)：138-145.

[13]王妙全，田成刚，徐瑶，等. GH4169D高温合金锻件持久寿命的影响因素研究[J]. 锻压技术，2023，48(1)：46-52.

Wang M Q，Tian C G，Xu Y，et al. Study on influencing factors of rupture life for superalloy GH4169D forgings [J]. Forging & Stamping Technology，2023，48(1)： 46-52.

[14]周尧,刘鑫玺,胡启,等.不同加载条件对TC4钛合金后继高温应力松弛及其力学行为的影响规律[J].锻压技术,2024,49(7):30-38.

Zhou Y，Liu X X，Hu Q，et al. Mechanical behavior effect laws of different loading conditions on hightemperature stress relaxation of TC4 titanium alloy and its mechanical behavior[J]. Forging & Stamping Technology，2024，49(7)：30-38.

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