锻压技术

镍基高温合金锥筒形件拉深旋压成形机理研究

英文标题：Research on deep drawing spinning forming mechanism of conical-cylindrical part of Ni-based superalloy

作者：凌泽宇肖刚锋夏琴香张义龙

单位：华南理工大学

分类号：TG306；TH161.2

出版年,卷(期):页码：2020,45(2):100-105

摘要：

针对镍基高温合金因加工硬化严重成形时极易产生破裂和起皱等典型缺陷的问题，以锥筒形壳体类零件为对象，提出了一种由锥形预制坯经过真空固溶处理后拉深旋压成形锥筒形件的方法，并对其成形机理进行了研究。基于Abaqus/Explicit平台，建立了锥筒形件拉深旋压有限元模型，分析了成形过程中的瞬态等效应力、等效塑性应变、切向应力、壁厚及三向应变分布规律。结果表明：在旋压成形过程中，最大瞬态等效应力位于旋轮接触区及附近区域、最大瞬态等效塑性应变位于坯料口部；瞬态切向压应力最大值位于旋轮接触区，而瞬态切向拉应力最大值位于旋轮接触区附近的两侧区域。筒形段中部壁厚减薄，而坯料口部壁厚增厚。旋压成形试验表明，锥形预制坯经拉深旋压后可获得壁厚均匀的锥筒形件。

For the problem that the nickel-based superalloy was prone to typical defects such as crack and wrinkle due to severe work hardening during forming, taking the conical-cylindrical part as the object, a method for deep drawing spinning the conical-cylindrical part from the conical pre-formed blank after vacuum solution treatment was proposed, and its forming mechanism was studied. Based on Abaqus/Explicit, a finite element model of deep drawing spinning for conical-cylindrical part was established, and the distribution laws of transient equivalent stress, equivalent plastic strain, tangential stress, wall thickness and triaxial strain in the forming process were analyzed respectively. The results show that the maximum transient equivalent stress occurs in the contact area of roller and its vicinity, and the maximum transient equivalent plastic strain occurs at the mouth of blank. Besides, the maximum value of transient tangential compressive stress is located in the contact area of roller, and the maximum value of transient tangential tensile stress is located on both sides of the contact zone for roller. Furthermore, the wall thickness in the middle part of cylindrical section reduces, and the wall thickness of the blank mouth increases. Finally, the spinning tests show that the conical-cylindrical part obtains uniform wall thickness by deep drawing spinning conical pre-formed blank.

基金项目：

国家自然科学青年科学基金项目(51705159)

凌泽宇（1994-），男，硕士研究生，E-mail：mezyling@mail.scut.edu.cn；通讯作者：夏琴香（1964-），女，博士，教授，E-mail：meqxxia@scut.edu.cn

参考文献：

[1]唐中杰, 郭铁明, 付迎, 等. 镍基高温合金的研究现状与发展前景[J]. 金属世界, 2014,(1): 36-40.
Tang Z J, Guo T M, Fu Y, et al. Research present situation and the development prospect of nickel-based superalloy[J]. Metal World, 2014,(1): 36-40.
[2]杨国耀. 锥形炉胆的热冲压工艺[J]. 金属加工: 热加工, 1993, (2): 15-16.
Yang G Y. Hot stamping process of conical furnace[J]. Metal Working, 1993, (2): 15-16.
[3]夏琴香. 特种旋压成形技术[M]. 北京: 科学出版社, 2017.
Xia Q X. Special Spinning Forming Technology [M].Beijing: Science Press，2017.
[4]陈涛. 锥-筒形件多道次拉深旋压有限元模拟及试验研究[D]. 重庆：重庆大学, 2013.
Chen T. Research on Multi-pass Deep Drawing Spinning of Cone-cylinder Parts Using 3D FEM and Experimental Investigation[D]. Chongqing：Chongqing University, 2013.
[5]贾震, 吕伯超, 潘广权, 等. 一种灯饰外罩的剪切与拉深旋压组合工艺[J]. 宁波大学学报:理工版, 2018, 31(1):25-29.
Jia Z, Lyu B C, Pan G Q, et al. Combined process of shear and drawing spinning for a lighting cover[J]. Journal of Ningbo University: Natural Science & Engineering Edition, 2018, 31(1): 25-29.
[6]Wang X K, Xia Q X, Cheng X Q. Deformation behavior of Haynes230 superalloy during backward flow forming[J]. International Journal of Precision Engineering and Manufacturing, 2017, 18(1): 77-83.
[7]王景艳. 航空发动机典型板材成形性能数据库及选材评价系统开发[D]. 南京：南京航空航天大学, 2016.
Wang J Y. Development of Typical Sheet Metal Formability Database and Material Selection Evaluation System for Aero-engine[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2016.
[8]夏琴香, 阮锋. 旋轮形状对杯形件单道次拉深旋压成形的影响[J]. 精密成形工程, 2002, 20(6):30-32.
Xia Q X, Ruan F. Effect of the roller shape on the one-path deep drawing spinning of cups[J]. Metal Forming Technology, 2002, 20(6):30-32.
[9]陈嘉, 万敏, 李卫东,等. 多道次普通旋压渐开线轨迹设计及其在数值模拟中的应用[J]. 塑性工程学报, 2008, 15(6):53-57.
Chen J, Wan M, Li W D, et al. Design of the involute trace of multi-pass conventional spinning and application in numerical simulation[J]. Journal of Plasticity Engineering, 2008, 15(6):53-57.
[10]刘建华, 杨合. 多道次普旋技术发展与旋轮轨迹的研究[J]. 机械科学与技术, 2003, 22(5):805-807.
Liu J H, Yang H. Development of multi-process conventional spinning and research on roller-trace[J]. Mechanical Science and Technology, 2003, 22(5):805-807.
[11]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.
[12]Wang L, Long H. Investigation of material deformation in multi-pass conventional metal spinning[J]. Materials & Design, 2011, 32(5): 2891-2899.
[13]杜飞. 高强钢板杯形件拉深旋压成形性能及工艺研究[D]. 广州：华南理工大学, 2017.
Du F. Research on Deep Drawing Spinning Formability and Process of High-strength Steel Cup Parts[D]. Guangzhou: South China University of Technology, 2017.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】