锻压技术

镍基高温合金锥筒形件拉深旋压时成形质量及组织性能研究

英文标题：Research on forming quality, microstructure and properties for Ni-based superalloy conical-cylindrical parts during deep-drawing spinning

作者：肖刚锋张义龙夏琴香晏畅

单位：华南理工大学机械与汽车工程学院

关键词：镍基高温合金锥筒形件拉深旋压进给比旋轮圆角半径

分类号：TG306

出版年,卷(期):页码：2021,46(9):190-196

摘要：

针对镍基高温合金因严重的加工硬化而导致塑性成形时质量控制困难的问题，以应用于燃烧室的锥筒形件为对象，提出采用剪切旋压工艺获得锥形预制坯，经固溶处理后进行拉深旋压成形出口部筒形段的方法。基于Abaqus软件建立锥筒形件多道次拉深旋压成形有限元模型，研究了进给比及旋轮圆角半径等成形参数对成形质量的影响规律，结合组织性能测试，获得了微观组织及力学性能变化规律。结果表明，进给比及旋轮圆角半径对制件的最大壁厚减薄率、圆度及回弹的影响显著。拉深旋压成形后,筒形段各区域的晶粒形态各异，中部晶粒被拉长并形成较多形变孪晶，口部筒形段发生晶粒堆积，且晶粒呈等轴状；拉深旋压成形的筒形段的强度显著提高，但伸长率下降。

Focus on the problem of difficulty in quality control of Ni-based superalloy during plastic forming due to severe work hardening, for the conical-cylindrical part applied to the combustion chamber, a method was proposed to obtain the cone-preformed blank by the shear spinning process and form the cylindrical section in the opening area by deep-drawing spinning after solid solution treatment. Then, the finite element model of multi-pass deep-drawing spinning for conical-cylindrical part was established based on Abaqus software, and the influence laws of forming parameters such as feed ratio and fillet radius of roller on forming quality were studied. Combined with the structure performance test, the microstructure and mechanical properties change rules were obtained. The results show that the feed ratio and fillet radius of roller have significant influences on the maximum thinning ratio of wall thickness, ovality and springback of part. After deep-drawing spinning, the morphologies of the grains in each region of cylindrical section are different, the grains in middle area are elongated to form more deformation twins, and the grains are piled up of cylindrical section in the opening area and equiaxed. In addition, the strength of cylindrical section formed by deep-drawing spinning is significantly improved, but the elongation decreases.

基金项目：

国家自然科学基金青年科学基金项目(51705159)；广东省自然科学基金资助项目(2019A1515012132)

肖刚锋（1987-），男，博士，副教授 E-mail：xiaogf@scut.edu.cn 通信作者：夏琴香（1964-），女，博士，教授 E-mail：meqxxia@scut.edu.cn

参考文献：

[1]Lin Y, Qian S, Chen X, et al. Staggered spinning of thinwalled Hastelloy C276 cylindrical parts: Numerical simulation and experimental investigation[J]. ThinWalled Structure, 2019, 140: 466-476.

[2]肖刚锋，夏琴香，张义龙，等. 镍基高温合金旋压成形技术研究现状[J]. 航空制造技术，2020，63（21）：46-53.

Xiao G F, Xia Q X, Zhang Y L, et al. Research status of spinning forming for Nibased superalloy[J]. Aeronautical Manufacturing Technology, 2020, 63(21): 46-53.

[3]凌泽宇，肖刚锋，夏琴香，等. 镍基高温合金锥筒形件拉深旋压成形机理研究[J]. 锻压技术，2020，45（2）：100-105.

Ling Z Y, Xiao G F, Xia Q X, et al. Research on deep drawing spinning forming mechanism of conicalcylindrical part of Nibased superalloy[J]. Forging & Stamping Technology, 2020, 45(2):100-105.

[4]夏琴香. 特种旋压成形技术[M]. 北京：科学出版社，2017.

Xia Q X. Novel Spinning Forming Technology[M]. Beijing: Science Press, 2017.

[5]Xia Q, Xiao G, Long H, et al. A review of process advancement of novel metal spinning[J]. International Journal of Machine Tools and Manufacture, 2014, 85: 100-121.

[6]王东坡，马世成，孙昂，等. 基于剪普复合旋压方法的双轮同步旋压技术[J]. 宇航材料工艺, 2015，45(4)：23-30.

Wang D P, Ma S C, Sun A, et al. Processing technology of doubleroller mirror spinning based on conventionalshear composite spinning[J]. Aerospace materials & Technology, 2015, 45(4): 23-30.

[7]温树斌，赵琳瑜，白小雷，等. 高强度钢厚壁球冠零件旋压工艺技术研究[A]. 李彦利. 第十四届全国旋压技术交流年会论文集[C]. 惠州：旋压学术委员会, 2016.

Wen S B, Zhao L Y, Bai X L, et al. Research on spinning technology of high strength steel thick wall spherical crown[A]. Li Y L. Proceeding of the 14th National Spinning Technology Annual Conference[C]. Huizhou: Spinning Academic Committee, 2016.

[8]Xia Q X, Zhu N Y, Cheng X Q, et al. The classification and a review of hot power spinning of difficulttodeform metals[J]. International Journal of Materials and Product Technology, 2017, 54(1-3): 212-235.

[9]王成和，刘克璋，周璐. 旋压技术[M]. 福州：福建科学技术出版社，2017.

Wang C H, Liu K Z, Zhou L, et al. Spinning Technology[M]. Fuzhou: Fujian Science and Technology Press, 2017.

[10]Wang L, Long H. Investigation of material deformation in multipass conventional metal spinning[J]. Materals and Design, 2011, 32(5): 2891-2899.

[11]Xia Q X, Long J C, Du F, et al. Research on single pass deep drawing spinning formability of cupshaped parts[A]. Wang G J, Hwang Y M, Fann K J, et al. Materials Science Forum[C]. Taichung, Elsevier，2018.

[12]Kumar D, Idapalapati S, Wang W, et al. Microstructural characteristics and strengthening mechanisms in a polycrystalline Nibased superalloy under deep cold rolling[J]. Materials Science & Engineering, 2019, 753: 285-299.

[13]GB/T 228.1—2010，金属材料拉伸试验第1部分：室温试验方法[S].

GB/T 228.1—2010，Metallic materials—Tensile testing—Part 1: Test method at room temperature[S].

服务与反馈：

【文章下载】【加入收藏】