Transactions of Materials and Heat Treatment

Title：Process parameters optimization of oil drill pipe end upsetting based on Deform

Authors： Zhao Wangchu Feng Qiaobo Qiu Tong Zhao Siri Li Jiacheng

Unit： Shanghai University of Electric Power

KeyWords： oil drill pipe upsetting die wear orthogonal test Deform

ClassificationCode：TG386

year,vol(issue):pagenumber：2019,44(9):80-87

Abstract：

The oil drill pipe end upsetting process was simulated under different process parameters by Deform software. An orthogonal test was proposed to investigate the effects of deforming temperature, extrusion speed and friction coefficient on the temperature gradient (TG), equivalent stress (σ-) and equivalent strain (ε-) of the thickened end of oil drill pipe, the wearing depth (H) of and the forming load (F). The results show that it is highly obvious to the effects of extrusion speed on the wearing depth of die and the temperature gradient, of deforming temperature on the maximum equivalent stress and the maximum forming load, and of friction coefficient on the maximum equivalent strain. The optimize parameters about extrusion speed, friction coefficient and deforming temperature are 1 mm·s-1, 0.1 and 1150 ℃.After optimizing the process parameters of oil drill pipe end upsetting, the forming quality of forgings is significantly improved, especially the maximum wearing depth of die, the maximum equivalent strain and the maximum temperature gradient are obviously improved which are 7.13×10-6 mm,0.75，8.93 ℃·mm-1.

Funds：

上海电力学院创新项目(201810256018)

赵旺初（1990-），男，硕士，助理工程师 E-mail：wangchuzhao@sina.cn

Reference：

［1］赵旺初. 37CrMnMo亚热锻工艺研究
［D］. 上海: 上海工程技术大学, 2016.

Zhao W C. Study on 37CrMnMo Semi-hot Forging Processing
［D］. Shanghai: Shanghai University of Engineering Science, 2016.

［2］齐会萍, 李永堂, 贾璐. 大口径厚壁管短流程铸挤一体化成形工艺研究
［J］. 太原科技大学学报, 2019, 40(4): 283-288.

Qi H P，Li Y T，Jia L. Casting-extrusion integrated forming process of large thick-wall pipe
［J］. Journal of Taiyuan University of Science and Technology, 2019, 40(4): 283-288.

［3］李建强, 于丽松, 牛成杰，等. 石油钻杆生产现状与发展趋势
［J］. 焊管, 2011, 34(11):35-38.

Li J Q, Yu L S, Niu C J, et al. The production status and development trend of drill pipe
［J］. Welded Pipe and Tube, 2011, 34(11):35-38.

［4］Tang H, Hao C, Jiang Y, et al. Forming process and numerical simulation of making upset on oil drill pipe
［J］. Acta Metallurgica Sinica：English Letters, 2010, 23(1):72-80.

［5］API Spec 5DP-2009, Specification for Drill Pipe
［S］ .

［6］权晓惠. 石油钻杆管端加厚工艺研究
［J］. 重型机械, 2002，(4): 22-25.

Quan X H. A study on oil drill pipe end upsetting process
［J］. Heavy Machinery, 2002，(4): 22-25.

［7］Lee R S, Jou J L. Application of numerical simulation for wear analysis of warm forging die
［J］. Journal of Materials Processing Technology, 2003, 140(1-3):43-48.

［8］Minami A, Marumo Y, Saiki H, et al. Effects of simulation conditions on evaluation of tool temperature in hot extrusion-forging
［J］. Journal of Materials Processing Technology, 2006, 177(1-3):251-255.

［9］康宏强. 定子橡胶配方优化及其对性能影响
［D］. 哈尔滨: 哈尔滨工业大学, 2012.

Kang H Q. Formula Optimization of Stator Rubber and Its Influence on Performance
［D］. Harbin: Harbin Institute of Technology, 2012.

［10］Torsten Sderstrm, David Kreiberg, Magnus Mossberg. Extended accuracy analysis of a covariance matching approach for identifying errors-in-variables systems
［J］. Automatica, 2014,50(10): 2597-2605.

［11］石君. 基于正交试验管廊固定螺母冷镦成形的分析及优化
［J］. 锻压技术, 2018, 43(3): 31-35.

Shi J. Analysis and optimization on cold heading of pipe gallery fixing nut based on orthogonal test
［J］. Forging & Stamping Technology, 2018, 43(3): 31-35.

［12］刘明磊. 正交试验设计中的方差分析
［D］. 哈尔滨: 东北林业大学, 2011.

Liu M L. The Analysis of Variance in the Orthogonal Experimental Design
［D］. Harbin: Northeast Forestry University, 2011.

Service：

【This site has not yet opened Download Service】【Add Favorite】