Single-point incremental forming technology for non-axisymmetric step-feature forming part

The invention relates to a single-point incremental forming technology for a non-axisymmetric step-feature forming part. The single-point incremental forming technology for the non-axisymmetric step-feature forming part comprises the steps that a planar sheet metal part is clamped in a suspended mode, a tool head is used for processing the sheet metal part into a forming part through a plurality of procedures, and the forming sequence of a stepped inclined surface is prior to the forming of a stepped plane. Compared with the prior art, the single-point incremental forming technology for the non-axisymmetric step-feature forming part has the advantages that a simple single-point incremental forming device is used and one-time clamping is achieved so that the sheet metal part with the non-axisymmetricsuspended step-feature is formed; the incremental forming of a complex-shaped sheet metal part can be achieved without the need of adopting a special double-point incremental forming equipment or of specially manufacturing a supporting mold; the single-point incremental forming technology for the non-axisymmetric step-feature forming part combines a multi-step forming and technological path compensation, reasonably controls the move of metal sheets, reduces the mutual influence between different parts, and forms the forming part which satisfies the geometric precision requirement.