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阐述了内直角台肩楔横轧成形过程;分析比较了由内斜台肩过渡到内直角台肩的两种方案,指明了改变侧倾角α的过渡方案的弱点及应用的局限性,肯定了侧倾角不变的截止过渡方案。推导了作为过渡段孔型设计理论根据的截止曲线方程,还证明了修正系数 K 的解析计算方法。最后列出了整个孔型各段的主要尺寸计算方法。
The paper describes the forming process of cross-wedge cross-rolling of the inner right-angle shoulder. Two schemes of transition from the inner sloping shoulder to the inner right-angle shoulder are analyzed and compared. The weaknesses and limitations of the transition scheme for changing the roll angle α are indicated. Roll-off angle of the deadline for the transitional program. The cut-off curve equation based on the pass-through design theory of the transition section is deduced, and the analytic calculation method of the correction coefficient K is also proved. Finally, the main dimensions of each section of the hole are calculated.