本文采用标准光滑圆柱试样，研究了35钢在扭转载荷下的屈服过程以及屈服机理。
The yield procedure and mechanics of steel 35 under torsional load were studied by standard cylinder specimen in this paper.
本文以金属塑性成形的屈服准则为依据，提出了一种圆柱体压缩-扭转复合变形工艺，并且用塑性泥做了模拟实验。
In this paper, a compressing twisting-forging-method, based on the yield criterion, is given. It can be used for forging cylinders. The experiments are made with plasticine.
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