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多道次加载下TC6钛合金作动筒等温锻造成形规律
英文标题:Isothermal forging laws on TC6 titanium alloy actuator cylinder under multi-pass loading
作者:何国云1   勇2   科1 3   琳1 王高潮1 
单位:1. 南昌航空大学 航空制造工程学院 2. 南昌航空大学 通航学院 3. 首尔国立大学 材料科学与工程系& RIAM 
关键词:等温锻造 TC6钛合金 作动筒 多道次加载 加载速度 成形效率 成形载荷 
分类号:TG316
出版年,卷(期):页码:2024,49(1):23-31
摘要:

 对TC6钛合金作动筒锻件进行单/双/三道次加载成形路径分析,以单道次加载成形中的载荷剧增处为转变点,并在该处改变凸模加载速度,采用双道次和三道次对作动筒进行加载成形规律研究。通过平均成形载荷与成形时间之比来表征成形效率,并对比得出较好的加载成形路径,研究该加载路径下的成形载荷大小与材料流动规律,结果表明:通过对比成形效率得出平均载荷较小、成形效率较高的3种多道次加载路径。从材料流动角度分析了单道次压下量为13%时载荷剧增是由于凸模顶端的水平面与工件开始接触,材料流动变慢导致的;而在压下量为72%时载荷增加是因为工件已经和凹模底部开始接触,大量材料继续向侧向实心凸起处流动,少量材料向上反挤成形作动筒的上端。最后,通过实验与模拟验证表明,作动筒锻件在双道次加载路径下的筒体成形良好,底部实心凸起处充填饱满。多道次加载能够发挥钛合金的超塑性能,提高成形效率,精确塑性成形。

  The forming paths of single/double/three-pass loading for TC6 titanium alloy actuator cylinder forgings were analyzed. Taking the sharp increase point of load during the forming process of single-pass loading as the transition point, the punch loading speed was changed at this point, and the loading forming rules of the actuator cylinder was studied by double passes and three passes. Furthermore, the forming efficiency was characterized by the ratio of average forming load to forming time, and a better forming path of loading was obtained through comparison to research the forming load value and the material flow law under this loading path. The results show that three paths of multi-pass loading with smaller average forming load and higher forming efficiency are obtained by comparing the forming efficiency. From the perspective of material flow, it is analyzed that when the single pass reduction amount is 13%, the load increases sharply because the horizontal plane at the top of punch begins to contact with the workpiece and the material flow slows down. When the reduction amount is 72%, the load increases because the workpiece begins to contact the bottom of die, a large amount of material continues to flow to the lateral solid bulge, and a small amount of material is back-extruded upward to form the upper end of actuator. Finally, the experimental and simulation verification show that the actuator cylinder forgings is well formed under the double-pass loading path, and the solid bulge at the bottom is fully filled. It is confirmed that the multi-pass loading can exert the superplastic properties of titanium alloy, improve the forming efficiency, and better achieve the precise plastic forming.

 
基金项目:
国家自然科学基金资助项目(52005241);江西省自然科学基金资助项目(20232BAB204050);国家留学基金委(No.202208360107)
作者简介:
作者简介:何国云(1998-),男,硕士研究生 E-mail:2430561321@qq.com 通信作者:魏 科(1986-),男,博士,副教授 E-mail:weike@nchu.edu.cn
参考文献:

 
[1]  Mosleh A O,Mikhaylovskaya A V,Kotov A D,et al. Experimental,modelling and simulation of an approach for optimizing the superplastic forming of Ti-6%A1-4%V titanium alloy
[J]. Journal of Manufacturing Processes,2019,45(9): 262-272.



[2]  李毅,赵永庆,曾卫东. 航空钛合金的应用及发展趋势
[J]. 材料导报,2020,34(S1): 280-282.

Li Y,Zhao Y Q,Zeng W D. Application and development trend of aviation titanium alloy
[J]. Materials Reports,2020,34(S1): 280-282.


[3]  王维,张钟月,赵朔,等. LDM连接及SLM成形TC4合金的组织与性能
[J]. 稀有金属,2022,46(8): 998-1005.

Wang W,Zhang Z Y,Zhao S,et al. Microstructure and properties of LDM connecting and SLM forming TC4 alloy
[J]. Chinese Journal of Rare Metals,2022,46(8): 998-1005.


[4]  Shen Z N,Wu R D,Yuan C L,et al. Comparative study of metamodeling methods for modeling the constitutive relationships of the TC6 titanium alloy
[J]. Journal of Materials Research and Technology,2021,(10): 188-204.


[5]  朱琳,徐勇,陈乐平,等. TC6钛合金高温低应变速率变形行为研究
[J]. 特种铸造及有色合金,2022,42(2): 226-229.

Zhu L,Xu Y,Chen L P,et al. Study on deformation behavior of TC6 titanium alloy at high temperature and low strain rate
[J]. Special Casting and Non-Ferrous Alloys,2022,42(2): 226-229.


[6]  迟艳,郭旭,刘玫,等. 某航空发动机作动筒液压试验台设计研究
[J]. 液压气动与密封,2012,32(4): 34-36.

Chi Y,Guo X,Liu M,et al. Design and research of an aero-engine actuator cylinder hydraulic test bed
[J]. Hydraulics Pneumatics and Seals,2012,32(4): 34-36.


[7]  马庆,魏科,徐勇,等. TC6钛合金作动筒等温锻造成形的模拟与实验研究
[J]. 热加工工艺,2023,52(7): 89-93.      

Ma Q,Wei K,Xu Y,et al. Simulation and experimental study on isothermal forging of TC6 titanium alloy actuator cylinder
[J]. Hot Working Technology,2023,52(7): 89-93.


[8]  Zhang Y Q,Shan D B,Xu F C. Flow lines control of disk structure with complex shape in isothermal precision forging
[J]. Journal of Materials Processing Technology,2009,209(2): 745-753.


[9]  Sun Q J,Zhou J W,Peng J H,et al. Superplasticity study of TA15 alloy based on variable m value method
[J]. Rare Metal Materials and Engineering,2022,51(3): 843-849.


[10]王高潮,曹春晓,董洪波,等. TC11合金最大m值超塑变形机理
[J]. 航空学报,2009,30(2): 357-361.

Wang G C,Cao C X,Dong H B,et al. Superplastic deformation mechanism of TC11 alloy with maximum m value
[J]. Acta Aeronautica et Astronautica Sinica,2009,30(2): 357-361.


[11]Mulyukov R R,Nazarov A A,Imayev R M. Current achievements on superplasticity and related phenomena at the Institute for metals superplasticity problems
[J]. Letters on Materials,2018,8(4): 510-516.


[12]徐勇,杨湘杰,乐伟. 多道次温轧TC4钛合金超塑性变形行为与断裂机制
[J]. 特种铸造及有色合金,2018,38(5): 470-475.

Xu Y,Yang X J,Yue W. Superplastic deformation behavior and fracture mechanism of TC4 titanium alloy in multi-pass warm rolling
[J]. Special Casting and Non-Ferrous Alloys,2018,38(5): 470-475.


[13]Zheng J,Liu L,Zhang Z,et al. Multi-pass rolling-extrusion of large-scale thin-walled square tube with longitudinal inner ribs
[J]. The International Journal of Advanced Manufacturing Technology,2022,124(7): 2335-2349.


[14]徐凯华,刘海军,闫江鹏,等. 热等静压态TC4钛合金在多道次热压缩变形中的组织演变
[J]. 塑性工程学报,2021,28(7): 150-156.

Xu K H,Liu H J,Yan J P,et al. Microstructure evolution of hot isostatic pressed TC4 titanium alloy during multi-pass hot compression deformation
[J]. Journal of Plasticity Engineering,2021,28(7): 150-156.


[15]丁凯伦,王敬忠,杨西荣,等. Ti-62A钛合金多道次降温热变形行为研究
[J]. 稀有金属,2021,45(8): 921-927.

Ding K L,Wang J Z,Yang X R,et al. Study on thermal deformation behavior of Ti-62A titanium alloy at multi-pass cooling
[J]. Chinese Journal of Rare Metals,2021,45(8): 921-927.     


[16]童晋方,冯治国,江玉莲,等. TB9钛合金芯杆冷镦成形模拟及实验研究
[J]. 锻压技术,2023,48(8): 32-40.

Tong J F,Feng Z G,Jiang Y L,et al. Simulation and experimental study on cold heading forming of TB9 titanium alloy core bar
[J]. Forging & Stamping Technology,2023,48(8): 32-40.      


[17]朱恩锐,崔霞,郭陆陆,等. TB6钛合金筒形件强力旋压成形工艺模拟
[J]. 锻压技术,2023,48(2): 126-134.

Zhu E R,Cui X,Guo L L,et al. Simulation of strong spinning forming process for TB6 titanium alloy cylindrical parts
[J]. Forging & Stamping Technology,2023,48(2): 126-134.


[18]李亚智,赵美英,万小朋. 有限元法基础与程序设计
[M]. 北京: 科学出版社,2004. 

Li Y Z,Zhao M Y,Wan X P. Finite Element Method Foundation and Program Design
[M]. Beijing: Science Press,2004.
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