本文用常温云纹法与数值模拟法研究了筒体锻件整体镦粗与局部镦粗工艺的变形规律，得到了整体镦粗工艺的坯料尺寸图。对于在端部内壁处取样的核电筒体锻件，应采用局部镦粗工艺，以锻透取样部位。为避免端部折叠，局部镦粗时单砧压下量应小于１０％。 In this paper, the law of deformation of the cylinder upsetting and local upsetting process was studied by using the moiré method and the numerical simulation at room temperature. The blank size of the whole upsetting process was obtained. For nuclear torch forgings sampled at the inner wall of the end, a partial upsetting process should be used to forge the sampling site. In order to avoid the end of the fold, when the partial upsetting anvil reduction should be less than 10%.