Transactions of Materials and Heat Treatment

Title：Research on roll bending process of grid panel by CNC milling

Authors： Yin Ping Jin Kun Zhu Shiqiang Wang Yanqin Zhen Li Zhang Guowei Tang Yong Sun Chao

Unit： Capital Aerospace Machinery Company Limited Tianjin Long March Space Rocket Manufacturing Company Limited

KeyWords： grid panel by CNC milling direct roll bending filling roll bending grid aluminum alloy 2219

ClassificationCode：V46

year,vol(issue):pagenumber：2018,43(2):0-0

Abstract：

For aluminum alloy 2219 grid panel by CNC milling, the direct roll bending and the filling roll bending process were studied. The results show that there are great differences between the tank wall of a launch vehicle in thickness, plate width and grid. However, the grid panel is formed by direct roll bending after CNC milling grid, and the filling roll bending process is not suitable for forming outer grid panel, but it can form the inner grid panel. Furthermore, PE plastic plate with a larger hardness is a better filling material than the rubber filler, and the bus straightness of the inner grid panel is between 1.1 and 1.4 mm after roll bending by PE plastic plate as filler material. In addition, the surface gap between the triangular grid panel and quadrilateral grid panel is not more than 1.5 mm by direct roll bending process with multi-pass and small feeding.

Funds：

国防科工局一致性项目（科工一司〔2014〕618号）

作者简介：尹苹（1965-），女，本科，高级工程师 E-mail：jinkun-jk@163.com

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