提出了一种针对一般直边圆弧形截面零件的多道次非轴对称旋压旋轮运动轨迹生成方法.在小变形量普通旋压的平面应变模式的前提之下，运用体积不变原理，分析了一般多边圆弧形非轴对称旋压件的应变分布规律.通过合理的分配每个道次的变形量，生成每个道次的轨迹点集.使用心轴旋轮独立运动的非轴对称旋压成形装置，加工三直角边圆角形横截面旋压件，并对成形后零件的厚度分布、回弹情况进行测量，验证了这种道次生成方法的可行性，为数字化非轴对称旋压成形技术提供了一种新思路.
This paper proposes a method of generating the roller path in multi-pass asymmetric spinning process for the hollow part with straight-edge round-corner cross-section. With the principle of volume invariance, the strain distribution of general hollow part with straight-edge round-corner cross-section is analyzed under the premise of plane strain condition in conventional spinning process. The point set for each pass is generated by rationally assigning the deformation of per pass. The non-axisymmetric spinning device with independent rotation between mandrel and wheel is used to process the hollow part with three straight-edge round-corner cross-section, and the thickness distribution and spring-back of the part are measured to verify the feasibility of this method. All of the results provide a new idea for digital non-axisymmetric spinning technology.
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