The spinning technology

with its advantages of high precision

good process flexibility

ease of automation

and material savings

has been widely applied in industrial fields such as aerospace

aviation

and automotive. As the demand for processes continues to expand

spinning technology for non-circular cross-sections and nonaxisymmetric rotational bodies has emerged. To adapt to the metal flow trends for forming target shapes

corresponding shapes such as non-circular cross-sections and eccentric clamping are used for pre-processing traditional circular blanks in spinning technology. Additionally

research on spinning technology for welded composite blanks

either for blank size or material-saving purposes

has also gained attention. Compared with traditional circular blanks

non-circular blank spinning can

to a certain extent

make the spinning process more stable. It can effectively eliminate flanges and reduce the uneven distribution of wall thickness

greatly improving the forming accuracy and achieving betterforming results. Offset blank spinning can be used when the product does not have high requirements for wall thickness uniformity and shape accuracy. It effectively saves materials and improves production efficiency. This paper reviews the current research status of two types of prefabricated blank spinning technologies and provides prospects for the spinning technology of prefabricated hole blanks.