摘要: |
为了实现小直径薄壁不锈钢管局部缩颈,采用一种新型的无模浮动滚珠旋压法,设计并制造了一套滚珠旋压专用工装,充分利用车床的基本功能,通过工艺试验,解决了薄壁管缩颈的技术难题。在工艺试验过程中,获得了不同转速、进给比条件下的旋压结果,通过对比分析,当主轴转速为118r/min,轴向进给比0.5mm/r时,缩颈段成形效果最佳。 |
关键词: 薄壁管;缩颈;滚珠旋压;工艺参数 |
基金项目: |
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Research on Ball Bearing Spining Technics for Local Necking of Thin-walled Steel Tube with Small Diameter |
Guo Qiang Wen Shubin Han Dong Li Zenghui Zhang Yan
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Xi’an Aerospace Power Machine Factory, Xi’an 710025
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Abstract: |
In order to realize local necking effect of stainless steel tube with small diameter and thin thickness, a new-style floating ball spining method with no mandril was carried out, and a suit of special frocks was designed and manufactured, sufficiently utilized basal function of the lathe, the technic problem was solved according to technics trial. Spining result was achieved in the condition of different rotate speed and ratio of progress in process of technics trial, comparing with different results, when rotate speed was 118 r/min, ratio of progress was 0.5mm/r, the effect of necking segment was the best. |
Key words: thin-walled tube;necking;ball bearing spinning;technological parameter |