Transactions of Materials and Heat Treatment

Title：Optimization on process parameters for turbine shell forming based on orthogonal test

Authors： Zhang Liang

Unit： Jiangyin Polytechnic College

KeyWords： turbine shell springback sheet forming orthogonal test finite element simulation

ClassificationCode：TG386

year,vol(issue):pagenumber：2018,43(8):54-57

Abstract：

For the turbine shell, the springback of turbine shell was simulated by software Simufact Forming. Taking the bending radius of die, die clearance and stamping speed as influencing factors, and taking the amount of springback for sheet metal as the optimization target，the simulation test with four factors and three levels was designed by orthogonal test. Then, the influences of each factor on springback of sheet metal were obtained by simulation test. And the influence sequence is die clearance, bending radius of die and stamping speed. Furthermore, the optimal combination of process parameters for turbine shell forming are the die clearance of 1.0t, bending radius of die of 55.2 mm and stamping speed of 15 mm·s-1, and the simulation value of springback with optimal scheme is 0.436 mm. In addition, the experiment of the optimal scheme was carried out by stamping die. The result shows that the experimental value of springback is 0.494 mm, and the error between simulation and experiment values is 13.3%, which verifies the correctness of the finite element simulation.

Funds：

江阴职业技术学院科研项目（17E-JD-29）

张良（1973-），男，硕士，副教授 E-mail：zlthzl@hotmail.com

Reference：

［1］Wang C, Kinzel G, Altan T. Mathematical modeling of plane strain bending of sheet and Plate
［J］. Mater. Proc. Tech., 1998, 39(3-4): 279-304.

［2］Huang Y M, Leu D K. An elastic-plastic finite element analysis of sheet metal U-bending process
［J］. Journal of Materials Processing Technology, 2005, 48: 151-157.

［3］刘奎武, 边巍. 基于Dynaform的波形片成形回弹研究
［J］. 锻压技术, 2015, 40(11): 32-35.

Liu K W, Bian W. Study on springback in cushion segment forming based on Dynaform
［J］.Forging & Stamping Technology, 2015, 40(11): 32-35.

［4］李兵, 刘奎武, 高鹏, 等. 基于响应曲面法的传动带成形工艺参数优化
［J］. 锻压技术, 2017, 42 (2): 189-192.

Li B, Liu K W, Gao P, et al. Optimization on process parameters of leaf spring based on response surface method
［J］.Forging & Stamping Technology, 2017, 42 (2): 189-192.

［5］谢晖，赵笠程，王杭燕，等. 基于正交试验的不锈钢冲压模具磨损分析及优化
［J］. 锻压技术，2017，42（10）：132-137.

Xie H，Zhao L C，Wang H Y，et al. Wear analysis and optimization on stainless steel stamping die based on orthogonal test
［J］. Forging & Stamping Technology，2017，42（10）：132-137.

［6］王晓莉, 朱晓红, 穆瑞. 基于有限元模拟的冲裁毛刺控制方法
［J］. 锻压技术, 2016, 41(11): 65-70.

Wang X L, Zhu X H, Mu R. Control method of blanking burr based on finite element simulation
［J］. Forging & Stamping Technology, 2016, 41(11): 65-70.

［7］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:Method of test at room temperature
［S］.

［8］GB/T 5027—2016,金属薄板和薄带塑性应变比(r值)的测定
［S］ .

GB/T 5027—2016,Determination of plastic strain ratio(r value) of sheet metal and thin strip
［S］.

［9］GB/T 5028—2008,金属薄板和薄带拉伸应变硬化指数(n值)试验方法
［S］.

GB/T 5028—2008,Test method for tensile strain hardening index (n value) of sheet metal and thin strip
［S］.

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