摘要
通过有限元模拟、成形工艺试验、样品管齿形参数测试以及内外表面质量观察,研究了Φ7mm双旋向内螺纹铜管旋压成形工艺。结果表明:在双旋向内螺纹铜管旋压成形过程中副齿齿槽能有效阻止旋压方向上与其相邻的主齿周围金属材料逆向流动;双旋向内螺纹铜管Φ7×0.25×0.18(主齿50条、副齿10条)旋压成形优选旋模比为500r/m时,能同时兼顾双旋向内螺纹铜管的齿形参数、内外表面质量及生产效率。
The ball spinning forming process of Φ7mm inner-grooved copper tube with double spin was investigated by finite element simulation, forming process test, testing of tooth profile parameters and observation of internal and external surface quality. The results show that vice tooth in the inner-grooved copper tube can effectively prevent the reverse flow of metal material near the main teeth which is adjacent to the vice tooth in the spinning direction. The preferred rotation-pulling speed ratio for the forming of Φ7×0.25×0.18 inner-grooved copper tube with double pin （50 main teeth, 10 vice teeth ） was 500 r/m, which can give consideration to the quality ofinternal and external surface, tooth profile parameters and the production efficiency.
出处
《铜业工程》
CAS
2017年第2期16-18,22,共4页
Copper Engineering
关键词
内螺纹铜管
双旋向
有限元模拟
旋压成形
旋模比
inner-grooved copper tube
double spin
finite element simulation
ball spinning forming
rotation-pulling speed ratio
