The Effect of Spray Distance and Scanning Step on the Coating Thickness Uniformity in Cold Spray Process

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• 作者：Zhenhua Cai (1)
  Sihao Deng (1)
  Hanlin Liao (1)
  Chunnian Zeng (2)
  Ghislain Montavon (1)
  
• 关键词：coating thickness ; coating profile prediction ; cold spray ; robot trajectory ; scanning step ; spray distance
• 刊名：Journal of Thermal Spray Technology
• 出版年：2014
• 出版时间：February 2014
• 年：2014
• 卷：23
• 期：3
• 页码：354-362
• 全文大小：1,142 KB
• 作者单位：Zhenhua Cai (1)
  Sihao Deng (1)
  Hanlin Liao (1)
  Chunnian Zeng (2)
  Ghislain Montavon (1)
  
  1. IRTES- LERMPS, Universit茅 de Technologie de Belfort-Montb茅liard, 90010, Belfort Cedex, France
  2. Automation School, Wuhan University of Technology, Wuhan, China
  
• ISSN：1544-1016

文摘

In the process of cold spray applications, robot kinematic parameters represent significant influences on the coating quality. Those parameters include: spray distance, spray angle, gun relative velocity to substrate, scanning step, and cycle numbers. The combined effects which are caused by their interactions determine the coating thickness. The increasing requirements of coating productivity lead to the objectivity of analyzing the effect of robot kinematic parameters. So it becomes necessary to optimize the robot trajectory for spraying process in order to obtain a desired coating thickness. This study aims at investigating the relationship between the coating profile and the spray distance, scanning step, and introducing the basic principle of a software toolkit named thermal spray toolkit (TST) developed in our laboratory to generate the optimized robot trajectories in spray processes including thermal spray and cold spray. Experiments have been carried out to check the reliability of the simulated coating profile and the calculated coating thickness by TST.