模角對空拔管幾何尺寸的影響
EFFECT BY DIE ANGLE ON GEOMETRIC DIMENSIONS OF EMPTY SUNK TUBE
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摘要: 試驗研究表明:用適當加寬定徑帶的大錐角普式外?？瞻武摴苣茱@著減小鋼管壁厚不均,可變增壁為減壁,當空拔總減徑量較大時,可減少拔制道次。Abstract: The results of experiments indicate that with big die angle to empty sink steel tubes,wall thichness uneveness was considerably reduced,the original wall thickening phenomenon eliminated,instead of wall thinning,and that when the total size reduction amount caused by empty sinking was sufficitenly big,number of passes were decreased.
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