如试验研究[1]所表明,使用扩张形毛边槽可以显著地降低变形力、减少所需模锻设备的吨位。但用扩张形毛边槽模锻时,应如何计算模锻时的变形力及选择模锻设备吨位,仍是一个有待解决的问题。本文作者从理论上推导出了用扩张形毛边槽模锻时变形力的计算公式,并对其进行了实验验证。 As demonstrated by the experimental study [1], the use of dilated burrs can significantly reduce the deformation force and reduce the tonnage of the required forging equipment. However, it is still a problem to be solved when how to calculate the deformation force during die forging and to select the tonnage of die forging equipment when expanding with the burr. The author deduces theoretically the calculation formula of the deformation force in the process of die forging with the expansion-shaped burrs, and verifies it by experiments.