title: Experiment Research on Hot-Rolling Processing of Nonsmooth Pit Surface.
abstract: In order to achieve the nonsmooth surface drag reduction structure on the inner polymer coating of oil and gas pipelines and improve the efficiency of pipeline transport, a structural model of the machining robot on the pipe inner coating is established. Based on machining robot, an experimental technique is applied to research embossing and coating problems of rolling-head, and then the molding process rules under different conditions of rolling temperatures speeds and depth are analyzed. Also, an orthogonal experiment analysis method is employed to analyze the different effects of hot-rolling process apparatus on the embossed pits morphology and quality of rolling. The results also reveal that elevating the rolling temperature or decreasing the rolling speed can also improve the pit structure replication rates of the polymer coating surface, and the rolling feed has little effect on replication rates. After the rolling-head separates from the polymer coating, phenomenon of rebounding and refluxing of the polymer coating occurs, which is the reason of inability of the process. A continuous hot-rolling method for processing is used in the robot and the hot-rolling process of the processing apparatus is put in a dynamics analysis.
authors.affiliation: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
authors.forename: Yun-Qing
authors.initials: YQ
authors.lastname: Gu
authors.affiliation: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
authors.forename: Tian-Xing
authors.initials: TX
authors.lastname: Fan
authors.affiliation: College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
authors.forename: Jie-Gang
authors.initials: JG
authors.lastname: Mou
authors.affiliation: China Aviation Powerplant Research Institute, Zhuzhou 412002, China.
authors.forename: Wei-Bo
authors.initials: WB
authors.lastname: Yu
authors.affiliation: College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, China.
authors.forename: Gang
authors.initials: G
authors.lastname: Zhao
authors.affiliation: Institut National Polytechnique of Grenoble, Joseph Fourier University, Grenoble 38031, France.
authors.forename: Evan
authors.initials: E
authors.lastname: Wang