凹模型孔设计有一定圆角，凸模带有侧刃，并采用了可靠的定位等措施有效地控制了六角工件的对角线尺寸。
The diagonal dimension of the hexagon parts is controlled by reliable position setting units, small round corner for female module designing and the male module with lateral sharp edge.
并提出了被切削层金属沿刀具切削刃向工件两侧的自由表面产生塑性流动是形成两侧方向毛刺主要原因的新观点，得到了试验结果的证实。
A new viewpoint was advanced, in which the plastic flow of metal layer to be cut becomes the cutting burr, and it was confirmed by experimental results.
计算结果表明，在靠近结合界面的Q 235钢一侧的工件棱边处产生最大轴向应力，这是导致接头开裂的重要因素。
The results indicated that the largest stress appeared on the edge of Q235 near the interface. This is the key factor inducing crack.
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