天线一体化馈源杯体电弧增材制造探讨

Discussion on wire arc additive manufacturing of antenna integrated feed cup body

目前论证的天线一体化馈源杯体最大轮廓为0.4 m×3.2 m×4 m,要做到超宽超厚的铝合金结构件需通过专门定制毛坯材料。这种非货架材料制备需改造材料制造设备,导致材料生产周期长、材料成本高,这些制约了航天超大尺寸一体化馈源结构件的制造。为实现超大毛坯的制造目的,文章通过电弧增材制造毛坯的工艺方法,得到了满意的试验结果。研究结果表明,采用连续短直线成形路径,且将起、熄点置于零件外侧的成形方法,可获得成形良好、无肉眼可见缺陷的零件,为超大毛坯制造提供了一种新的思路。

The maximum wheel aisle of the antenna integrated feed cup body will can be up to 0.4 m×3.2 m×4 m.In order to achieve ultra-wide and ultra-thick aluminum alloy structural parts,special customized wool materials are meeded.This kind of off-shelf material preparation needs to transform the material manufacturing equipment,which leads to long material production cycle and high material cost,which restricts the manufacturing of aerospace super-large integrated feed structure parts.In order to realize the manufacturing purpose of super large parts,the process method of wrie arc additive manufacturing(WAAM)is adopted in this paper,and satisfactory test results are obtained.the results show that the parts with good forming and no visible defects can be obtained by using the forming method of continuous short linear forming path and placing the start and stop points on the outside of the parts,which can be used for reference in the future.