Modern Manufacturing Engineering ›› 2024, Vol. 520 ›› Issue (1): 142-150.doi: 10.16731/j.cnki.1671-3133.2024.01.021

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Current status and research progress of metal micro-tube manufacturing technology

WANG Wenkai, MING Pingmei, YAN Liang, ZHANG Xinmin, LI Xinchao, ZHANG Yasai, NIU Shen   

  1. School of Mechanical and Power Engineering,Henan Polytechnic University,Jiaozuo 454000,China
  • Received:2023-03-20 Online:2024-01-18 Published:2024-05-29

Abstract: Metal micro-tube has the functions of micro-channel closure,directional guidance,steadying and guiding flow etc.,which is widely used in medicine,electrical and electronics,heat transfer,optics and other fields.The preparation of metal micro-tubes is very challenging due to the limitations of the miniaturization of tools and changes in material properties and friction behavior due to size effect.The process principles,manufacturing characteristics,forming capabilities,advantages and disadvantages of the commonly used manufacturing technologies for metal micro-tubes are summarized,including hot extrusion forming,cold drawing forming,dieless drawing forming and electroforming forming.Finally,the future development trends and research focuses of metal micro-tube manufacturing technology are prospected.

Key words: metal micro-tube, manufacturing technologies, dieless drawing forming, electroforming forming

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