tubular billet meaning in English

管坯
毛管

Abstract : based on the result of visioplasticity test , the law of tube central upsetting was created , and the calculated method of displacement field and strain field were obtained . in this study , the four deformation modes were showed when ratio of height to thickness of tubular billet is greater than 3 . the four modes were related to the distribution of strainless - plane
文摘:根据管坯视塑性实验法的实验结果，分析了无芯轴支撑条件下，管坯中部镦锻的变形规律，阐述了变形区位移场、应变场的计算方法；通过对实验结果的分析，得出了当镦粗比3 ，管坯中部镦锻时，内壁呈现四种典型的变形模式；论述了分流面的分布与四种变形模式之间的转化关系。